New products

S&S forged piston set 3-7/16 bore is standard size. Set includes rings wrist pins and retainers. Machined to fit 4-3/4 or 4-5/8 stroker flywheels. **Note:Run engine at moderate speeds for at least 500 miles avoiding excessive running in lower gears in order to properly break-in new pistons and rings. 1941-1977 FL 1971-1977 FX

Cylinders are stock height. For installation of 3-5/8 cylinders after spigot holes have been enlarged. (See diagram for photos.) *NOTE: 3-5/8 cylinders are drilled to use with 4-1/2 and 4-1/4 stroke. Will require break in as suggested in the shop manual. These are cylinders only. Order pistons and rings separately. These cylinders will require crankcase cylinder spigot holes to be bored out. Disassmbly of engine is required to install these cylinders. NOTE: The finished bore size should be 3.6270 . 1966-1984 FL 1971-1984 FX 1979-1983 FLT 1982-1983 FXR

Cylinder and piston conversion kit features silver finished cast cylinders with Sifton moly coated pistons. 2004-UP XL

Black pushrod cover kit includes inner lower and upper covers for Twin Cam engines. 1999-2017 FXST 1999-2017 FLST 1999-2016 FLT 1999-2017 FXD

Black stock style pushrod cover kit includes a 16 piece set with all the parts needed for complete installation for Evolution Big Twins. 1984-1998 FLT 1984-1994 FXR 1984-1998 FXST 1986-1998 FLST 1991-1998 FXD

1200cc XL Conversion cylinder and piston set includes 2 black finished with milled edge fin cylinders with fitted Wiseco moly 9.5:1 reverse dome piston and ring set. Order head base gasket set separately. 1986-2003 XL

Hastings cast piston ring set is for a 3-5/16 bore and is .040 oversize. Features compression rings with a size of 3/32 and oil rings with the size of 3/16 . Set of two for use with two pistons. 1936-1940 EL

Knucklehead rocker arm set. Sold as a set of 4. 1937-1940 EL 1941-1947 FL

Chrome skull design pushrod cover cup set. Set of four. 1936-1940 EL 1941-1984 FL 1971-1984 FX 1984-UP FXST 1982-1984 FXR 1982-1994 FXR 1991-UP FXD 1986-UP FLST 1979-UP FLT 1957-1989 XL

Pinion shaft plug features a brass construction with a .0935 hole .252 x .160 . 1984-1998 FXST 1984-1998 FLT 1986-1998 FLST 1984-1994 FXR 1991-1998 FXD

Pinion shaft plug features a brass construction with a .0625 hole .252 x .160 . 1984-1998 FXST 1984-1998 FLT 1986-1998 FLST 1984-1994 FXR 1991-1998 FXD

Jims powerglide steady roll tappets feature a special bronze alloy roller bushing in place of stock type loose needle roller bearing. As an added bonus to increased reliability and longer life it's quieter operation is due to the tighter tolerances this design allows. This failsafe design means even if the bushing wears out it will be retained in the tappet assembly. 1999-2017 FXST 1999-2017 FLST 1999-UP FLT 1999-2017 FXD 2000-UP XL

Jims powerglide steady roll tappets feature a special bronze alloy roller bushing in place of stock type loose needle roller bearing. As an added bonus to increased reliability and longer life it's quieter operation is due to the tighter tolerances this design allows. This failsafe design means even if the bushing wears out it will be retained in the tappet assembly. 1999-2017 FXST 1999-2017 FLST 1999-UP FLT 1999-2017 FXD 2000-UP XL

Jims powerglide steady roll tappets feature a special bronze alloy roller bushing in place of stock type loose needle roller bearing. As an added bonus to increased reliability and longer life it's quieter operation is due to the tighter tolerances this design allows. This failsafe design means even if the bushing wears out it will be retained in the tappet assembly. Measures .8475 . 1984-1998 FXST 1984-1998 FLT 1984-1994 FXR 1986-1998 FLST 1991-1998 FXD 1986-1990 XL

Jims powerglide steady roll tappets feature a special bronze alloy roller bushing in place of stock type loose needle roller bearing. As an added bonus to increased reliability and longer life it's quieter operation is due to the tighter tolerances this design allows. This failsafe design means even if the bushing wears out it will be retained in the tappet assembly. 1984-1998 FXST 1984-1998 FLT 1984-1994 FXR 1986-1998 FLST 1991-1998 FXD 1986-1990 XL

Jims powerglide steady roll tappets feature a special bronze alloy roller bushing in place of stock type loose needle roller bearing. As an added bonus to increased reliability and longer life it's quieter operation is due to the tighter tolerances this design allows. This failsafe design means even if the bushing wears out it will be retained in the tappet assembly. Measures 0.8475 . 1984-1998 FXST 1984-1998 FLT 1984-1994 FXR 1986-1998 FLST 1991-1998 FXD 1986-1990 XL

Sifton WR/KR camshaft lobe set includes four lobes. Camshaft cores are not included. For 45 side valve models. Set is for roller tappets. To be installed on original cams WL type. Must remove old cam lobe and degree in to correct position then weld into place. Set is for use with 45 Flathead engines only and will not work on 74 and 80 UL engines. Intakes are .415 lift 300° duration. Exhausts are .400 lift 275° duration. *NOTE: These are hi-lift full race. Sold as a set of 4. 1937-1952 W 1936-1973 G

Sifton cast flywheel set with a 4.250 stroke and a 6° taper for shafts. The sprocket shaft side of the flywheel is narrow style. The right and left wheels are both 1.450 thick. Accepts OE style components for 80 engine. Sold as a pair. 1978-1984 FL 1978-1984 FX 1984-1994 FXD 1979-1984 FLT 1985-1997 FLT 1986-1998 FLST 1984-1998 FXST 1991-1998 FXD

1939-1953 pinion shaft and gear set includes a machined and ground to factory specifications engine shaft a 21 tooth standard tapered pinion shaft gear with a 1.43 outer diameter and a pinion shaft gear end nut *NOTE: Check spline timing in relation to key way 12 o'clock on top and oil hole large spline at 3 o'clock before installing in flywheel for final assembly and truing of flywheels. 1939-1952 EL 1941-1953 FL

Kit includes pinion shaft and the correct gear 1941-1953 FL 1939-1952 EL

York motor sprocket spacer is machined from aluminum and is for use on 1955-1964 motors on rigid frames with york starter kits only. 1955-1969 FL

York motor sprocket spacer features steel construction. For use with the York Electric Starter Kit. 1941-1954 FL

Front cylinder head. 1955-1962 FL

Sifton hydraulic tappet body and four piece lifter set fitted with large pin roller assembly will fit stock tappet blocks. 1982-1983 FXR 1979-1983 FLT 1971-1984 FX 1953-1984 FL

Crank pins are made of 8620 steel with .062 heat treated penetration. Crank pin is .010 oversize 3-hole type. 1940-1952 EL 1940-1948 UL

Chrome cam gearcase cover features a cut down styling. Installation requires new gaskets! 2004-UP XL

Black cam gearcase cover features a cut down styling. Installation requires new gaskets! 2004-UP XL

Panhead top end kit with 3-1/2 cylinders and matching complete Panhead heads. This kit will fit 1970-1984 Shovelheads to convert to Panhead type with overhead oiler system. Kit includes 3-1/2 cylinder kit with cast pistons head bolt set and rings. This complete Panhead head set comes with valves guides spring valves and rocker arm assemblies. With 3.9 stroke (stock 74 ) gives 76 cubic inches. With 4-1/4 stroke (stock 80 ) gives 82 cubic inches. With 4-1/2 stroke gives 87 cubic inches. For installation of 3-5/8 cylinders after spigot holes have been enlarged. (See diagram
10-1350" Fully assembled and tested for oil pressure. **NOTE: Carburetor and charging system is not included. Replica 74 knucklehead long block does not include the carburetor and generator. Unit features Replica crank cases rocker boxes with natural finish and overhead oiler provision from timing cover. Also features heads with parkerized lower valve cover cups and tops cast iron type flywheels assembled with stock rods and Torrington rollers with steel cages valve train with tappet assembly with Sifton Lightning Cam pushrods & chrome pushrod cover. Cam cover is finned 1947 style.
10-1370" Replica Knucklehead 74 motor includes motor sprocket and 18mm spark plug set. 1963-1984 FL

Front and rear tappet block set with oil drain holes and features a zinc plated finish. Set of two. Mount holes are not countersunk. *NOTE: Order screws separately. 1953-1984 FL

Sifton standard right side case race is machined and ground to factory specifications. Race has an outer diameter of 2.0015 1940-1948 UL 74 and 80""

XR/WR magneto 36 tooth idler gear with holes includes bearing for Side Valve models. *NOTE: Includes 1 bearing but 2 are required. Order additional 1 as required. 1936-1952 W