Mid-USA

Pistons,Kb Perf 10:1 Std Bore Spt 86/L* Converts 883 To 1200 W/Pins,Locks,Rings # Kb272Std

Pistons,Kb Perf 9:1 +.030"Os Spt 88/03 1200Cc W/Pins,Locks, Rings #Kb264.030

Pistons,Kb Perf 9:1 +.020"Os Spt 88/03 1200Cc W/Pins,Locks, Rings #Kb264.020

$232.70

Pistons,Kb Perf 9:1 +.010"Os Spt 88/03 1200Cc W/Pins,Locks, Rings #Kb264.010

Piston Part,Kb Piston Ret Ring Keith Black,Twin Cam 88 Pistons Only Kb#Prj100-3

$235.90

Piston,Kb Big Bore +.010"Os Tc88 99/L* 95"Cid,4.0"Stroke & 3.875' Bore 9.3:1 Comp Kb348

$1.65

Sold Out

Pistons,Kb Big Bore "Std" Tc88 99/L* 95"Cid,4.0"Stroke & 3.875" Bore 9.3:1 Comp Kb348

Sold Out

Pistons,Kb 8.5:1 +.020"Os Ph Sh 88/98Ci 4.25/4.75 Stroke 3.625"Std Bore Hi Compression

Pistons,Kb 8.5:1 +.010"Os Ph Sh 88/98Ci 4.25/4.75 Stroke 3.625"Std Bore Hi Compression

Pistons,Kb 8.5:1 Std Bore Ph Sh 88/98Ci 4.25/4.75 Stroke 3.625"Std Bore Hi Compression

Sold Out

Pistons,Kb Perf 7.2:1 +.040"Os Sh 1340Cc W/Pins,Locks & Rings 3.498"Std Bore Hi Compression

Pistons,Kb Perf 7.2:1 +.030"Os Sh 1340Cc W/Pins,Locks & Rings 3.498"Std Bore Hi Compression

$246.80

Pistons,Kb Perf 7.2:1 +.020"Os Sh 1340Cc W/Pins,Locks & Rings 3.498"Std Bore Hi Compression

Pistons,Kb Perf 7.2:1 +.010"Os Sh 1340Cc W/Pins,Locks & Rings 3.498"Std Bore Hi Compression

Pistons,Kb Perf 7.2:1 +.005"Os Sh 1340Cc W/Pins,Locks & Rings 3.498"Std Bore Hi Compression

Pistons,Kb Perf 7.2:1 Std Bore Sh 1340Cc W/Pins,Locks & Rings 3.498"Std Bore Hi Compression

Pistons,Kb Perf 10.5:1 .030"Os BT Evo W/Pins,Locks & Rings 3.498"Std Bore Hi Compression

Sold Out

Pistons,Kb Perf 10.5:1 .020"Os BT Evo W/Pins,Locks & Rings 3.498"Std Bore Hi Compression

Sold Out

Pistons,Kb Perf 10.5:1 .010"Os BT Evo W/Pins,Locks & Rings 3.498"Std Bore Hi Compression

Pistons,Kb Perf 10.5:1 .005"Os BT Evo W/Pins,Locks & Rings 3.498"Std Bore Hi Compression

Pistons,Kb Perf 10.5:1 Stdbore BT Evo W/Pins,Locks & Rings 3.498"Std Bore Hi Compression

Sold Out

Pistons,Kb Perf 8.6:1 +.030"Os BT Evo W/Pins,Locks & Rings 3.498"Std Bore Hi Compression

Pistons,Kb Perf 8.6:1 Std Bore BT Evo W/Pins,Locks & Rings 3.498"Std Bore Hi Compression

$237.30

Sold Out

Pistons,Kb Perf 9:1 +.070"Os BT 1200Cc W/Pins,Locks & Rings 3.438"Std Bore Std Compression

$237.40

Pistons,Kb Perf 9:1 +.060"Os BT 1200Cc W/Pins,Locks & Rings 3.438"Std Bore Std Compression

Sold Out

Pistons,Kb Perf 9:1 +.050"Os BT 1200Cc W/Pins,Locks & Rings 3.438"Std Bore Std Compression

Sold Out

Pistons,Kb Perf 9:1 +.040"Os BT 1200Cc W/Pins,Locks & Rings 3.438"Std Bore Std Compression

Pistons,Kb Perf 9:1 +.030"Os BT 1200Cc W/Pins,Locks & Rings 3.438"Std Bore Std Compression

$234.20

Sold Out

Pistons,Kb Perf 9:1 +.020"Os BT 1200Cc W/Pins,Locks & Rings 3.438"Std Bore Std Compression

Pistons,Kb Perf 9:1 +.010"Os BT 1200Cc W/Pins,Locks & Rings 3.438"Std Bore Std Compression

Pistons,Kb Perf 9:1 Std Bore BT 1200Cc W/Pins,Locks & Rings 3.438"Std Bore Std Compression

Pistons,Kb Perf 9.6:1 +.030"Os BT Evo 80Ci W/Pins,Locks,Rings 3.498"Std Bore Hi Compression

Pistons,Kb Perf 9.6:1 +.020"Os BT Evo 80Ci W/Pins,Locks,Rings 3.498"Std Bore Hi Compression

Sold Out

Pistons,Kb Perf 9.6:1 +.010"Os BT Evo 80Ci W/Pins,Locks,Rings 3.498"Std Bore Hi Compression

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Pistons,Kb Perf 10:1 +.005"Os Spt 86/L* Converts 883 To 1200 W/Pins,Locks,Rings #Kb272.005

MID-62291

$232.00

In Stock

Shipping calculated at checkout.

Pistons,Kb Perf 10:1 +.005"Os Spt 86/L* Converts 883 To 1200 W/Pins,Locks,Rings #Kb272.005

Spawned from this successful manufacturer's line of automotive pistons
Lightweight, permanent mold cast pistons
Manufactured from Hypereutectic 390 Alloy, contain 16-18% silicon and heat treated to T6 specifications producing a stronger than stock piston
Special alloy composition keeps heat confined to the combustion chamber and reduces heat transfer to the piston Fitself production a cooler running piston
Piston expansion is reduced by as much as 20% over conventional pistons
Less piston rock, better ring support, more durability, and better retained compression for maximum power
The key feature to these pistons is the accumulator groove between the tip and second ring which averages the normal pressure between the first and second ring, keeping the pressure low enough to prevent lifting of the top ring while maintaining preload on the second (oil scraping) ring
Each set of pistons includes wrist pins, spiral locks, engine assembly lube, and Hastings moly rings
Order 65199 for replacement wrist pin lock (sold each)
Wrist pins measure .792 O.D.
Replacement rings are availableKB Performance Pistons
Fits Evolution Sportster 1986/Later 1200cc (74ci)
Standard bore =3.498
10:1 compression ratio
Dish Top Pistons that do not require head modification
+.005 Bore Note: It is not recommended to bore Sportster 1972/Early 1973 1000cc models more than .030 oversize. These are easily identified by their 6 point head bolts.

Pistons,Kb Perf 10:1 Std Bore Spt 86/L* Converts 883 To 1200 W/Pins,Locks,Rings # Kb272Std

MID-62290

$232.00

In Stock

Shipping calculated at checkout.

Pistons,Kb Perf 10:1 Std Bore Spt 86/L* Converts 883 To 1200 W/Pins,Locks,Rings # Kb272Std

Spawned from this successful manufacturer's line of automotive pistons
Lightweight, permanent mold cast pistons
Manufactured from Hypereutectic 390 Alloy, contain 16-18% silicon and heat treated to T6 specifications producing a stronger than stock piston
Special alloy composition keeps heat confined to the combustion chamber and reduces heat transfer to the piston Fitself production a cooler running piston
Piston expansion is reduced by as much as 20% over conventional pistons
Less piston rock, better ring support, more durability, and better retained compression for maximum power
The key feature to these pistons is the accumulator groove between the tip and second ring which averages the normal pressure between the first and second ring, keeping the pressure low enough to prevent lifting of the top ring while maintaining preload on the second (oil scraping) ring
Each set of pistons includes wrist pins, spiral locks, engine assembly lube, and Hastings moly rings
Order 65199 for replacement wrist pin lock (sold each)
Wrist pins measure .792 O.D.
Replacement rings are availableKB Performance Pistons
Fits Evolution Sportster 1986/Later 1200cc (74ci)
Standard bore =3.498
10:1 compression ratio
Dish Top Pistons that do not require head modification
Standard BoreNote: It is not recommended to bore Sportster 1972/Early 1973 1000cc models more than .030 oversize. These are easily identified by their 6 point head bolts.

Pistons,Kb Perf 9:1 +.030"Os Spt 88/03 1200Cc W/Pins,Locks, Rings #Kb264.030

MID-62276

$232.70

In Stock

Shipping calculated at checkout.

Pistons,Kb Perf 9:1 +.030"Os Spt 88/03 1200Cc W/Pins,Locks, Rings #Kb264.030

Spawned from this successful manufacturer's line of automotive pistons
Lightweight, permanent mold cast pistons
Manufactured from Hypereutectic 390 Alloy, contain 16-18% silicon and heat treated to T6 specifications producing a stronger than stock piston
Special alloy composition keeps heat confined to the combustion chamber and reduces heat transfer to the piston Fitself production a cooler running piston
Piston expansion is reduced by as much as 20% over conventional pistons
Less piston rock, better ring support, more durability, and better retained compression for maximum power
The key feature to these pistons is the accumulator groove between the tip and second ring which averages the normal pressure between the first and second ring, keeping the pressure low enough to prevent lifting of the top ring while maintaining preload on the second (oil scraping) ring
Each set of pistons includes wrist pins, spiral locks, engine assembly lube, and Hastings moly rings
Order 65199 for replacement wrist pin lock (sold each)
Wrist pins measure .792 O.D.
Replacement rings are availableKB Performance Pistons
Fits Evolution Sportster 1988/2003 1200cc (74ci)
Standard bore =3.498
9:1 compression ratio lat Top Piston
+.030 Bore Note: It is not recommended to bore Sportster 1972/Early 1973 1000cc models more than .030 oversize. These are easily identified by their 6 point head bolts.

Pistons,Kb Perf 9:1 +.020"Os Spt 88/03 1200Cc W/Pins,Locks, Rings #Kb264.020

MID-62275

$243.55

In Stock

Shipping calculated at checkout.

Pistons,Kb Perf 9:1 +.020"Os Spt 88/03 1200Cc W/Pins,Locks, Rings #Kb264.020

Spawned from this successful manufacturer's line of automotive pistons
Lightweight, permanent mold cast pistons
Manufactured from Hypereutectic 390 Alloy, contain 16-18% silicon and heat treated to T6 specifications producing a stronger than stock piston
Special alloy composition keeps heat confined to the combustion chamber and reduces heat transfer to the piston Fitself production a cooler running piston
Piston expansion is reduced by as much as 20% over conventional pistons
Less piston rock, better ring support, more durability, and better retained compression for maximum power
The key feature to these pistons is the accumulator groove between the tip and second ring which averages the normal pressure between the first and second ring, keeping the pressure low enough to prevent lifting of the top ring while maintaining preload on the second (oil scraping) ring
Each set of pistons includes wrist pins, spiral locks, engine assembly lube, and Hastings moly rings
Order 65199 for replacement wrist pin lock (sold each)
Wrist pins measure .792 O.D.
Replacement rings are availableKB Performance Pistons
Fits Evolution Sportster 1988/2003 1200cc (74ci)
Standard bore =3.498
9:1 compression ratio lat Top Piston
+.020 Bore Note: It is not recommended to bore Sportster 1972/Early 1973 1000cc models more than .030 oversize. These are easily identified by their 6 point head bolts.

Pistons,Kb Perf 9:1 +.010"Os Spt 88/03 1200Cc W/Pins,Locks, Rings #Kb264.010

MID-62274

$235.90

In Stock

Shipping calculated at checkout.

Pistons,Kb Perf 9:1 +.010"Os Spt 88/03 1200Cc W/Pins,Locks, Rings #Kb264.010

Spawned from this successful manufacturer's line of automotive pistons
Lightweight, permanent mold cast pistons
Manufactured from Hypereutectic 390 Alloy, contain 16-18% silicon and heat treated to T6 specifications producing a stronger than stock piston
Special alloy composition keeps heat confined to the combustion chamber and reduces heat transfer to the piston Fitself production a cooler running piston
Piston expansion is reduced by as much as 20% over conventional pistons
Less piston rock, better ring support, more durability, and better retained compression for maximum power
The key feature to these pistons is the accumulator groove between the tip and second ring which averages the normal pressure between the first and second ring, keeping the pressure low enough to prevent lifting of the top ring while maintaining preload on the second (oil scraping) ring
Each set of pistons includes wrist pins, spiral locks, engine assembly lube, and Hastings moly rings
Order 65199 for replacement wrist pin lock (sold each)
Wrist pins measure .792 O.D.
Replacement rings are availableKB Performance Pistons
Fits Evolution Sportster 1988/2003 1200cc (74ci)
Standard bore =3.498
9:1 compression ratio lat Top Piston
+.010 BoreNote: It is not recommended to bore Sportster 1972/Early 1973 1000cc models more than .030 oversize. These are easily identified by their 6 point head bolts.

Piston Part,Kb Piston Ret Ring Keith Black,Twin Cam 88 Pistons Only Kb#Prj100-3

MID-65198

$1.65

In Stock

Shipping calculated at checkout.

Piston Part,Kb Piston Ret Ring Keith Black,Twin Cam 88 Pistons Only Kb#Prj100-3

Spawned from this successful manufacturer's line of automotive pistons
Lightweight permanent mold cast pistons
Manufactured from Hypereutectic 390 Alloy, contain 16-18% silicon, and heat treated to T6 specifications producing a stronger than stock piston
Special alloy compositon keeps heat confined to the combustion chamber and reduces heat transfer to the piston Fitself producing a cooler running piston
Can be fitted with a clearance as small as .00075
Piston expansion is reduced by as much as 20% over conventional pistons
Less piston rock, better ring support, more durability and better retained compression for maximum power
The key feature to these pistons is the accumulator groove between the top and second ring which averages the normal pressure between the first and second ring, keeping the pressure low enough to prevent lifting of the top ring while maintaining preload on the second (oil scraping) ring
Each set of pistons includes wrist pins, spiral locks, engine assembly lube, and Hastings Moly rings
Wrist pins measure .792 O.D. on single cam models and .927 on Twin cam models
Sold in sets as shown
Replacement ring sets availableKB Performance Pisons
Replacement parts
Piston pin carclip for KB Twin Cam pistons only

Pistons,Kb 8.5:1 +.020"Os Ph Sh 88/98Ci 4.25/4.75 Stroke 3.625"Std Bore Hi Compression

MID-62426

$292.30

In Stock

Shipping calculated at checkout.

Pistons,Kb 8.5:1 +.020"Os Ph Sh 88/98Ci 4.25/4.75 Stroke 3.625"Std Bore Hi Compression

Spawned from this successful manufacturer's line of automotive pistons
Lightweight permanent mold cast pistons
Manufactured from Hypereutectic 390 Alloy, contain 16-18% silicon, and heat treated to T6 specifications producing a stronger than stock piston
Special alloy compositon keeps heat confined to the combustion chamber and reduces heat transfer to the piston Fitself producing a cooler running piston
Can be fitted with a clearance as small as .00075
Piston expansion is reduced by as much as 20% over conventional pistons
Less piston rock, better ring support, more durability and better retained compression for maximum power
The key feature to these pistons is the accumulator groove between the top and second ring which averages the normal pressure between the first and second ring, keeping the pressure low enough to prevent lifting of the top ring while maintaining preload on the second (oil scraping) ring
Each set of pistons includes wrist pins, spiral locks, engine assembly lube, and Hastings Moly rings
Wrist pins measure .792 O.D. on single cam models and .927 on Twin cam models
Sold in sets as shown
Replacement ring sets availableKB Performance Pistons
Big Bore & Stroker Piston set
Fits Panhead & Shovelhead 88ci -98ci- 3.625
8.5:1 Dome Top Piston (4.25 - 4.75 Stroke)
+.020 Bore

Pistons,Kb 8.5:1 +.010"Os Ph Sh 88/98Ci 4.25/4.75 Stroke 3.625"Std Bore Hi Compression

MID-62425

$292.30

In Stock

Shipping calculated at checkout.

Pistons,Kb 8.5:1 +.010"Os Ph Sh 88/98Ci 4.25/4.75 Stroke 3.625"Std Bore Hi Compression

Spawned from this successful manufacturer's line of automotive pistons
Lightweight permanent mold cast pistons
Manufactured from Hypereutectic 390 Alloy, contain 16-18% silicon, and heat treated to T6 specifications producing a stronger than stock piston
Special alloy compositon keeps heat confined to the combustion chamber and reduces heat transfer to the piston Fitself producing a cooler running piston
Can be fitted with a clearance as small as .00075
Piston expansion is reduced by as much as 20% over conventional pistons
Less piston rock, better ring support, more durability and better retained compression for maximum power
The key feature to these pistons is the accumulator groove between the top and second ring which averages the normal pressure between the first and second ring, keeping the pressure low enough to prevent lifting of the top ring while maintaining preload on the second (oil scraping) ring
Each set of pistons includes wrist pins, spiral locks, engine assembly lube, and Hastings Moly rings
Wrist pins measure .792 O.D. on single cam models and .927 on Twin cam models
Sold in sets as shown
Replacement ring sets availableKB Performance Pistons
Big Bore & Stroker Piston set
Fits Panhead & Shovelhead 88ci -98ci- 3.625
8.5:1 Dome Top Piston (4.25 - 4.75 Stroke)
+.010 Bore

Pistons,Kb Perf 7.2:1 +.040"Os Sh 1340Cc W/Pins,Locks & Rings 3.498"Std Bore Hi Compression

MID-62401

$246.80

In Stock

Shipping calculated at checkout.

Pistons,Kb Perf 7.2:1 +.040"Os Sh 1340Cc W/Pins,Locks & Rings 3.498"Std Bore Hi Compression

Spawned from this successful manufacturer's line of automotive pistons
Lightweight permanent mold cast pistons
Manufactured from Hypereutectic 390 Alloy, contain 16-18% silicon, and heat treated to T6 specifications producing a stronger than stock piston
Special alloy compositon keeps heat confined to the combustion chamber and reduces heat transfer to the piston Fitself producing a cooler running piston
Can be fitted with a clearance as small as .00075
Piston expansion is reduced by as much as 20% over conventional pistons
Less piston rock, better ring support, more durability and better retained compression for maximum power
The key feature to these pistons is the accumulator groove between the top and second ring which averages the normal pressure between the first and second ring, keeping the pressure low enough to prevent lifting of the top ring while maintaining preload on the second (oil scraping) ring
Each set of pistons includes wrist pins, spiral locks, engine assembly lube, and Hastings Moly rings
Wrist pins measure .792 O.D. on single cam models and .927 on Twin cam models
Sold in sets as shown
Replacement ring sets availableKB Performance Pistons
Standard Bore & Stroke Piston set
Fits Shovelhead 80ci - 1340cc - 3.498
7:2.1 Dome Top Piston
+.040 Bore

Pistons,Kb Perf 7.2:1 +.030"Os Sh 1340Cc W/Pins,Locks & Rings 3.498"Std Bore Hi Compression

MID-62400

$232.00

In Stock

Shipping calculated at checkout.

Pistons,Kb Perf 7.2:1 +.030"Os Sh 1340Cc W/Pins,Locks & Rings 3.498"Std Bore Hi Compression

Spawned from this successful manufacturer's line of automotive pistons
Lightweight permanent mold cast pistons
Manufactured from Hypereutectic 390 Alloy, contain 16-18% silicon, and heat treated to T6 specifications producing a stronger than stock piston
Special alloy compositon keeps heat confined to the combustion chamber and reduces heat transfer to the piston Fitself producing a cooler running piston
Can be fitted with a clearance as small as .00075
Piston expansion is reduced by as much as 20% over conventional pistons
Less piston rock, better ring support, more durability and better retained compression for maximum power
The key feature to these pistons is the accumulator groove between the top and second ring which averages the normal pressure between the first and second ring, keeping the pressure low enough to prevent lifting of the top ring while maintaining preload on the second (oil scraping) ring
Each set of pistons includes wrist pins, spiral locks, engine assembly lube, and Hastings Moly rings
Wrist pins measure .792 O.D. on single cam models and .927 on Twin cam models
Sold in sets as shown
Replacement ring sets availableKB Performance Pistons
Standard Bore & Stroke Piston set
Fits Shovelhead 80ci - 1340cc - 3.498
7:2.1 Dome Top Piston
+.030 Bore

Pistons,Kb Perf 7.2:1 +.020"Os Sh 1340Cc W/Pins,Locks & Rings 3.498"Std Bore Hi Compression

MID-62299

$232.00

In Stock

Shipping calculated at checkout.

Pistons,Kb Perf 7.2:1 +.020"Os Sh 1340Cc W/Pins,Locks & Rings 3.498"Std Bore Hi Compression

Spawned from this successful manufacturer's line of automotive pistons
Lightweight permanent mold cast pistons
Manufactured from Hypereutectic 390 Alloy, contain 16-18% silicon, and heat treated to T6 specifications producing a stronger than stock piston
Special alloy compositon keeps heat confined to the combustion chamber and reduces heat transfer to the piston Fitself producing a cooler running piston
Can be fitted with a clearance as small as .00075
Piston expansion is reduced by as much as 20% over conventional pistons
Less piston rock, better ring support, more durability and better retained compression for maximum power
The key feature to these pistons is the accumulator groove between the top and second ring which averages the normal pressure between the first and second ring, keeping the pressure low enough to prevent lifting of the top ring while maintaining preload on the second (oil scraping) ring
Each set of pistons includes wrist pins, spiral locks, engine assembly lube, and Hastings Moly rings
Wrist pins measure .792 O.D. on single cam models and .927 on Twin cam models
Sold in sets as shown
Replacement ring sets availableKB Performance Pistons
Standard Bore & Stroke Piston set
Fits Shovelhead 80ci - 1340cc - 3.498
7:2.1 Dome Top Piston
+.020 Bore

Pistons,Kb Perf 7.2:1 +.010"Os Sh 1340Cc W/Pins,Locks & Rings 3.498"Std Bore Hi Compression

MID-62298

$232.00

In Stock

Shipping calculated at checkout.

Pistons,Kb Perf 7.2:1 +.010"Os Sh 1340Cc W/Pins,Locks & Rings 3.498"Std Bore Hi Compression

Spawned from this successful manufacturer's line of automotive pistons
Lightweight permanent mold cast pistons
Manufactured from Hypereutectic 390 Alloy, contain 16-18% silicon, and heat treated to T6 specifications producing a stronger than stock piston
Special alloy compositon keeps heat confined to the combustion chamber and reduces heat transfer to the piston Fitself producing a cooler running piston
Can be fitted with a clearance as small as .00075
Piston expansion is reduced by as much as 20% over conventional pistons
Less piston rock, better ring support, more durability and better retained compression for maximum power
The key feature to these pistons is the accumulator groove between the top and second ring which averages the normal pressure between the first and second ring, keeping the pressure low enough to prevent lifting of the top ring while maintaining preload on the second (oil scraping) ring
Each set of pistons includes wrist pins, spiral locks, engine assembly lube, and Hastings Moly rings
Wrist pins measure .792 O.D. on single cam models and .927 on Twin cam models
Sold in sets as shown
Replacement ring sets availableKB Performance Pistons
Standard Bore & Stroke Piston set
Fits Shovelhead 80ci - 1340cc - 3.498
7:2.1 Dome Top Piston
+.010 Bore

Pistons,Kb Perf 7.2:1 +.005"Os Sh 1340Cc W/Pins,Locks & Rings 3.498"Std Bore Hi Compression

MID-62297

$232.00

In Stock

Shipping calculated at checkout.

Pistons,Kb Perf 7.2:1 +.005"Os Sh 1340Cc W/Pins,Locks & Rings 3.498"Std Bore Hi Compression

Spawned from this successful manufacturer's line of automotive pistons
Lightweight permanent mold cast pistons
Manufactured from Hypereutectic 390 Alloy, contain 16-18% silicon, and heat treated to T6 specifications producing a stronger than stock piston
Special alloy compositon keeps heat confined to the combustion chamber and reduces heat transfer to the piston Fitself producing a cooler running piston
Can be fitted with a clearance as small as .00075
Piston expansion is reduced by as much as 20% over conventional pistons
Less piston rock, better ring support, more durability and better retained compression for maximum power
The key feature to these pistons is the accumulator groove between the top and second ring which averages the normal pressure between the first and second ring, keeping the pressure low enough to prevent lifting of the top ring while maintaining preload on the second (oil scraping) ring
Each set of pistons includes wrist pins, spiral locks, engine assembly lube, and Hastings Moly rings
Wrist pins measure .792 O.D. on single cam models and .927 on Twin cam models
Sold in sets as shown
Replacement ring sets availableKB Performance Pistons
Standard Bore & Stroke Piston set
Fits Shovelhead 80ci - 1340cc - 3.498
7:2.1 Dome Top Piston
+.005 Bore

Pistons,Kb Perf 7.2:1 Std Bore Sh 1340Cc W/Pins,Locks & Rings 3.498"Std Bore Hi Compression

MID-62296

$232.00

In Stock

Shipping calculated at checkout.

Pistons,Kb Perf 7.2:1 Std Bore Sh 1340Cc W/Pins,Locks & Rings 3.498"Std Bore Hi Compression

Spawned from this successful manufacturer's line of automotive pistons
Lightweight permanent mold cast pistons
Manufactured from Hypereutectic 390 Alloy, contain 16-18% silicon, and heat treated to T6 specifications producing a stronger than stock piston
Special alloy compositon keeps heat confined to the combustion chamber and reduces heat transfer to the piston Fitself producing a cooler running piston
Can be fitted with a clearance as small as .00075
Piston expansion is reduced by as much as 20% over conventional pistons
Less piston rock, better ring support, more durability and better retained compression for maximum power
The key feature to these pistons is the accumulator groove between the top and second ring which averages the normal pressure between the first and second ring, keeping the pressure low enough to prevent lifting of the top ring while maintaining preload on the second (oil scraping) ring
Each set of pistons includes wrist pins, spiral locks, engine assembly lube, and Hastings Moly rings
Wrist pins measure .792 O.D. on single cam models and .927 on Twin cam models
Sold in sets as shown
Replacement ring sets availableKB Performance Pistons
Standard Bore & Stroke Piston set
Fits Shovelhead 80ci - 1340cc - 3.498
7:2.1 Dome Top Piston
Standard Bore

Pistons,Kb Perf 10.5:1 .010"Os BT Evo W/Pins,Locks & Rings 3.498"Std Bore Hi Compression

MID-62286

$243.55

In Stock

Shipping calculated at checkout.

Pistons,Kb Perf 10.5:1 .010"Os Bt Evo W/Pins,Locks & Rings 3.498"Std Bore Hi Compression

Spawned from this successful manufacturer's line of automotive pistons
Lightweight permanent mold cast pistons
Manufactured from Hypereutectic 390 Alloy, contain 16-18% silicon, and heat treated to T6 specifications producing a stronger than stock piston
Special alloy compositon keeps heat confined to the combustion chamber and reduces heat transfer to the piston Fitself producing a cooler running piston
Can be fitted with a clearance as small as .00075
Piston expansion is reduced by as much as 20% over conventional pistons
Less piston rock, better ring support, more durability and better retained compression for maximum power
The key feature to these pistons is the accumulator groove between the top and second ring which averages the normal pressure between the first and second ring, keeping the pressure low enough to prevent lifting of the top ring while maintaining preload on the second (oil scraping) ring
Each set of pistons includes wrist pins, spiral locks, engine assembly lube, and Hastings Moly rings
Wrist pins measure .792 O.D. on single cam models and .927 on Twin cam models
Sold in sets as shown
Replacement ring sets availableKB Performance Pistons
Standard Bore & Stroke Piston set
Fits Big Twin Evolution 80ci - 1340cc - 3.498
10.5:1 Dome Top Piston
+.010 Bore

Pistons,Kb Perf 10.5:1 .005"Os BT Evo W/Pins,Locks & Rings 3.498"Std Bore Hi Compression

MID-62285

$243.55

In Stock

Shipping calculated at checkout.

Pistons,Kb Perf 10.5:1 .005"Os Bt Evo W/Pins,Locks & Rings 3.498"Std Bore Hi Compression

Spawned from this successful manufacturer's line of automotive pistons
Lightweight permanent mold cast pistons
Manufactured from Hypereutectic 390 Alloy, contain 16-18% silicon, and heat treated to T6 specifications producing a stronger than stock piston
Special alloy compositon keeps heat confined to the combustion chamber and reduces heat transfer to the piston Fitself producing a cooler running piston
Can be fitted with a clearance as small as .00075
Piston expansion is reduced by as much as 20% over conventional pistons
Less piston rock, better ring support, more durability and better retained compression for maximum power
The key feature to these pistons is the accumulator groove between the top and second ring which averages the normal pressure between the first and second ring, keeping the pressure low enough to prevent lifting of the top ring while maintaining preload on the second (oil scraping) ring
Each set of pistons includes wrist pins, spiral locks, engine assembly lube, and Hastings Moly rings
Wrist pins measure .792 O.D. on single cam models and .927 on Twin cam models
Sold in sets as shown
Replacement ring sets availableKB Performance Pistons
Standard Bore & Stroke Piston set
Fits Big Twin Evolution 80ci - 1340cc - 3.498
10.5:1 Dome Top Piston
+.005 Bore

Pistons,Kb Perf 8.6:1 +.030"Os BT Evo W/Pins,Locks & Rings 3.498"Std Bore Hi Compression

MID-62282

$237.30

In Stock

Shipping calculated at checkout.

Pistons,Kb Perf 8.6:1 +.030"Os Bt Evo W/Pins,Locks & Rings 3.498"Std Bore Hi Compression

Spawned from this successful manufacturer's line of automotive pistons
Lightweight permanent mold cast pistons
Manufactured from Hypereutectic 390 Alloy, contain 16-18% silicon, and heat treated to T6 specifications producing a stronger than stock piston
Special alloy compositon keeps heat confined to the combustion chamber and reduces heat transfer to the piston Fitself producing a cooler running piston
Can be fitted with a clearance as small as .00075
Piston expansion is reduced by as much as 20% over conventional pistons
Less piston rock, better ring support, more durability and better retained compression for maximum power
The key feature to these pistons is the accumulator groove between the top and second ring which averages the normal pressure between the first and second ring, keeping the pressure low enough to prevent lifting of the top ring while maintaining preload on the second (oil scraping) ring
Each set of pistons includes wrist pins, spiral locks, engine assembly lube, and Hastings Moly rings
Wrist pins measure .792 O.D. on single cam models and .927 on Twin cam models
Sold in sets as shown
Replacement ring sets availableKB Performance Pistons
Standard Bore & Stroke Piston set
Fits Big Twin Evolution 80ci - 1340cc - 3.498
8.6:1 lat Top Piston
+.030 Bore

Pistons,Kb Perf 9:1 +.070"Os BT 1200Cc W/Pins,Locks & Rings 3.438"Std Bore Std Compression

MID-62271

$237.25

In Stock

Shipping calculated at checkout.

Pistons,Kb Perf 9:1 +.070"Os Bt 1200Cc W/Pins,Locks & Rings 3.438"Std Bore Std Compression

Spawned from this successful manufacturer's line of automotive pistons
Lightweight permanent mold cast pistons
Manufactured from Hypereutectic 390 Alloy, contain 16-18% silicon, and heat treated to T6 specifications producing a stronger than stock piston
Special alloy compositon keeps heat confined to the combustion chamber and reduces heat transfer to the piston Fitself producing a cooler running piston
Can be fitted with a clearance as small as .00075
Piston expansion is reduced by as much as 20% over conventional pistons
Less piston rock, better ring support, more durability and better retained compression for maximum power
The key feature to these pistons is the accumulator groove between the top and second ring which averages the normal pressure between the first and second ring, keeping the pressure low enough to prevent lifting of the top ring while maintaining preload on the second (oil scraping) ring
Each set of pistons includes wrist pins, spiral locks, engine assembly lube, and Hastings Moly rings
Wrist pins measure .792 O.D. on single cam models and .927 on Twin cam models
Sold in sets as shown
Replacement ring sets availableKB PERORMANCE PISTONS
Standard Bore & Stroke Piston set
Fits Knucklehead, Panhead, Shovelhead 74ci-1200cc-3.438
9:1 Dome Top Piston
+.070 bore

Pistons,Kb Perf 9:1 +.040"Os BT 1200Cc W/Pins,Locks & Rings 3.438"Std Bore Std Compression

MID-62268

$234.20

In Stock

Shipping calculated at checkout.

Pistons,Kb Perf 9:1 +.040"Os Bt 1200Cc W/Pins,Locks & Rings 3.438"Std Bore Std Compression

Spawned from this successful manufacturer's line of automotive pistons
Lightweight permanent mold cast pistons
Manufactured from Hypereutectic 390 Alloy, contain 16-18% silicon, and heat treated to T6 specifications producing a stronger than stock piston
Special alloy compositon keeps heat confined to the combustion chamber and reduces heat transfer to the piston Fitself producing a cooler running piston
Can be fitted with a clearance as small as .00075
Piston expansion is reduced by as much as 20% over conventional pistons
Less piston rock, better ring support, more durability and better retained compression for maximum power
The key feature to these pistons is the accumulator groove between the top and second ring which averages the normal pressure between the first and second ring, keeping the pressure low enough to prevent lifting of the top ring while maintaining preload on the second (oil scraping) ring
Each set of pistons includes wrist pins, spiral locks, engine assembly lube, and Hastings Moly rings
Wrist pins measure .792 O.D. on single cam models and .927 on Twin cam models
Sold in sets as shown
Replacement ring sets availableKB PERORMANCE PISTONS
Standard Bore & Stroke Piston set
Fits Knucklehead, Panhead, Shovelhead 74ci-1200cc-3.438
9:1 Dome Top Piston
+.040 bore

Pistons,Kb Perf 9:1 +.020"Os BT 1200Cc W/Pins,Locks & Rings 3.438"Std Bore Std Compression

MID-62266

$237.25

In Stock

Shipping calculated at checkout.

Pistons,Kb Perf 9:1 +.020"Os Bt 1200Cc W/Pins,Locks & Rings 3.438"Std Bore Std Compression

Spawned from this successful manufacturer's line of automotive pistons
Lightweight permanent mold cast pistons
Manufactured from Hypereutectic 390 Alloy, contain 16-18% silicon, and heat treated to T6 specifications producing a stronger than stock piston
Special alloy compositon keeps heat confined to the combustion chamber and reduces heat transfer to the piston Fitself producing a cooler running piston
Can be fitted with a clearance as small as .00075
Piston expansion is reduced by as much as 20% over conventional pistons
Less piston rock, better ring support, more durability and better retained compression for maximum power
The key feature to these pistons is the accumulator groove between the top and second ring which averages the normal pressure between the first and second ring, keeping the pressure low enough to prevent lifting of the top ring while maintaining preload on the second (oil scraping) ring
Each set of pistons includes wrist pins, spiral locks, engine assembly lube, and Hastings Moly rings
Wrist pins measure .792 O.D. on single cam models and .927 on Twin cam models
Sold in sets as shown
Replacement ring sets availableKB PERORMANCE PISTONS
Standard Bore & Stroke Piston set
Fits Knucklehead, Panhead, Shovelhead 74ci-1200cc-3.438
9:1 Dome Top Piston
+.020 bore

Pistons,Kb Perf 9:1 +.010"Os BT 1200Cc W/Pins,Locks & Rings 3.438"Std Bore Std Compression

MID-62265

$237.25

In Stock

Shipping calculated at checkout.

Pistons,Kb Perf 9:1 +.010"Os Bt 1200Cc W/Pins,Locks & Rings 3.438"Std Bore Std Compression

Spawned from this successful manufacturer's line of automotive pistons
Lightweight permanent mold cast pistons
Manufactured from Hypereutectic 390 Alloy, contain 16-18% silicon, and heat treated to T6 specifications producing a stronger than stock piston
Special alloy compositon keeps heat confined to the combustion chamber and reduces heat transfer to the piston Fitself producing a cooler running piston
Can be fitted with a clearance as small as .00075
Piston expansion is reduced by as much as 20% over conventional pistons
Less piston rock, better ring support, more durability and better retained compression for maximum power
The key feature to these pistons is the accumulator groove between the top and second ring which averages the normal pressure between the first and second ring, keeping the pressure low enough to prevent lifting of the top ring while maintaining preload on the second (oil scraping) ring
Each set of pistons includes wrist pins, spiral locks, engine assembly lube, and Hastings Moly rings
Wrist pins measure .792 O.D. on single cam models and .927 on Twin cam models
Sold in sets as shown
Replacement ring sets availableKB PERORMANCE PISTONS
Standard Bore & Stroke Piston set
Fits Knucklehead, Panhead, Shovelhead 74ci-1200cc-3.438
9:1 Dome Top Piston
+.010 bore

Pistons,Kb Perf 9:1 Std Bore BT 1200Cc W/Pins,Locks & Rings 3.438"Std Bore Std Compression

MID-62264

$237.25

In Stock

Shipping calculated at checkout.

Pistons,Kb Perf 9:1 Std Bore Bt 1200Cc W/Pins,Locks & Rings 3.438"Std Bore Std Compression

Spawned from this successful manufacturer's line of automotive pistons
Lightweight permanent mold cast pistons
Manufactured from Hypereutectic 390 Alloy, contain 16-18% silicon, and heat treated to T6 specifications producing a stronger than stock piston
Special alloy compositon keeps heat confined to the combustion chamber and reduces heat transfer to the piston Fitself producing a cooler running piston
Can be fitted with a clearance as small as .00075
Piston expansion is reduced by as much as 20% over conventional pistons
Less piston rock, better ring support, more durability and better retained compression for maximum power
The key feature to these pistons is the accumulator groove between the top and second ring which averages the normal pressure between the first and second ring, keeping the pressure low enough to prevent lifting of the top ring while maintaining preload on the second (oil scraping) ring
Each set of pistons includes wrist pins, spiral locks, engine assembly lube, and Hastings Moly rings
Wrist pins measure .792 O.D. on single cam models and .927 on Twin cam models
Sold in sets as shown
Replacement ring sets availableKB Performance Pistons
Standard Bore & Stroke Piston set
Fits Knucklehead, Panhead, Shovelhead 74ci-1200cc-3.438
9:1 Dome top piston
Standard bore

Pistons,Kb Perf 9.6:1 +.030"Os BT Evo 80Ci W/Pins,Locks,Rings 3.498"Std Bore Hi Compression

MID-62190

$232.00

In Stock

Shipping calculated at checkout.

Pistons,Kb Perf 9.6:1 +.030"Os Bt Evo 80Ci W/Pins,Locks,Rings 3.498"Std Bore Hi Compression

Spawned from this successful manufacturer's line of automotive pistons
Lightweight permanent mold cast pistons
Manufactured from Hypereutectic 390 Alloy, contain 16-18% silicon, and heat treated to T6 specifications producing a stronger than stock piston
Special alloy compositon keeps heat confined to the combustion chamber and reduces heat transfer to the piston Fitself producing a cooler running piston
Can be fitted with a clearance as small as .00075
Piston expansion is reduced by as much as 20% over conventional pistons
Less piston rock, better ring support, more durability and better retained compression for maximum power
The key feature to these pistons is the accumulator groove between the top and second ring which averages the normal pressure between the first and second ring, keeping the pressure low enough to prevent lifting of the top ring while maintaining preload on the second (oil scraping) ring
Each set of pistons includes wrist pins, spiral locks, engine assembly lube, and Hastings Moly rings
Wrist pins measure .792 O.D. on single cam models and .927 on Twin cam models
Sold in sets as shown
Replacement ring sets availableKB Performance Pistons
Standard Bore & Stroke Piston set
Fits Big Twin Evolution 80ci - 1340cc - 3.498
9.6:1 Dome Top Piston
+.030 Bore