Head gaskets are made from aramid fiber-reinforced premium graphite material with a steel core, stainless steel fire ring and anti-stick coating 3.625" bore 0.81mm (0.032") thickness Made...

Pinion Gear for Shovelhead motors 1.4460" - 1.4465" Compatible Vehicles Years Make Make Notes 1958-1964 Harley-Davidson Duo Glide FL 1958-1964 Harley-Davidson Duo Glide...

Replacement ring sets for S&S pistons only Rings come as sets for two pistons Made in the U.S.A. Compatible Vehicles Years Make Make Notes 1995-1997 Harley-Davidson Bad Boy...

High quality replacement cylinder studs provide increased strength and extended durability 3/8-16 x 5.760" Meet or exceed OE standards Made in the U.S.A. Compatible...

Pinion Gear for Shovelhead motors 1.4470"-1.4475" Compatible Vehicles Years Make Make Notes 1958-1964 Harley-Davidson Duo Glide FL 1958-1964 Harley-Davidson Duo Glide...

Blackplate adapter for stock M8 covers Made in the U.S.A. Compatible Vehicles Years Make Make Notes 2019-2020 Harley-Davidson Electra Glide Standard FLHT 2017-2019 Harley-Davidson Electra...

S&S Stealth air cleaners allow owners of 1999-later big twins to use stock air cleaner covers from early Rushmore models to hide a performance air cleaner Made in the U.S.A. Compatible...

This premium quality, steel-alloy oil pump pressure relief spring actually increases engine oil pressure by 2-3 psi, and does not interfere with critical bearing lubrication needs .040" wire ...

For jetting most stock and performance engines Low Range Jet Kit, Includes .025" - .0295", .062" - .074 Made in the U.S.A.

Replacement rings sets for S&S pistons only Rings come as a set for two pistons Made in the U.S.A.

Inspired by our Pro Stock Drag Race engines, these updated big bore kit utilizes a Ductile Cast Iron liner wrapped in cast aluminum for optimum thermal conductivity and performance Bolt-in kits do...

O-Ring for Super E & G Carburetors 0.390" inside diameter 0.510" outside diameter