ENGINE

Features Crafted from premium-grade 6061 aluminum and finished with a sleek black anodized coating Eliminates worry about cracks and leaks from th...

Features Manifold has a full 55 mm diameter intake opening for more airflow Lets your engine breathe better - a must-have upgrade for 124” and lar...

Features 6061 billet aluminum head breathers replace the OEM plastic parts Dual O-ring for a better seal in the head Unique Labyrinth design to re...

Features Crafted from premium-grade 6061 aluminum and finished with a sleek black anodized coating Eliminates worry about cracks and leaks from th...

Features Designed for 107"/114" motors, compatible with all stock valve train components Kit includes all required bearings, o-rings, and hardware...

Camshaft - Chain Drive - Reaper® 525 Series - Twin Cam Designed to increase torque band width and increase fuel economy Great bolt-in camshaft upg...

Camchest Kit - HP+® - 574 Series - Chain Drive - Twin Cam All necessary components from top-to-bottom of the camchest Provide maximum reliability,...

Features Cylinder and piston kits contain S&S 3-1/2" bore (80") cylinders and forged pistons, rings, wrist pins, and head and base gaskets The...

Features Bolt in - no machining, balancing or splitting the crankcases; install can be performed with engine still in frame Cast Ductile Iron Slee...

Features Bolt-on without requiring machining of the crankcase Original engine serial numbers are retained MLS (multi-layered steel) head gaskets R...

Features All parts in each kit are matched to ensure superior quality, fit, finish and performance Oil pump and cam plate are precision-machined f...

Features All parts in each kit are matched to ensure superior quality, fit, finish and performance Oil pump and cam plate are precision-machined f...

Features All parts in each kit are matched to ensure superior quality, fit, finish and performance Oil pump and cam plate are precision-machined f...

Features Designed to add even more torque to your big bore M8, for those that keep the revs below 6000 rpm when combined with 124" and larger big ...

Features Made in the USA Oil Pump/Cam Plate: Precision machined from billet aluminum Blue anodized finish Passage plugs removable for servicing ...

Features Made in the USA Oil Pump/Cam Plate: Precision machined from billet aluminum Blue anodized finish Passage plugs removable for servicing ...

Features Reduce or even eliminate the oil coming from the head breathers on your M8 Machined from Billet Aluminum with a Boyesen one-way reed valv...

Features Oil line kit for S&S crankcase installation in '07-'16 Touring models Required to connect Super Stock crankcase to S&S oil pan In...

Features Superior quality OE replacement bearings Made in the U.S.A. Replacement Part for OEM Number(s) 9215 Specs Product Name Bearing Ty...

Features Superior quality OE replacement bearings Made in the U.S.A. Replacement Part for OEM Number(s) 9198 Specs Product Name Bearing Ty...

Lane Splitter Helmet Gen 2 Shield - Chrome Mirror Fits all Lane Splitter models Injection-molded scratch- and impact-resistant polycarbonate therm...

Reaper Camshaft - 580 Series - Buell / XL (except RH Sportster) Designed for riders who want more horsepower and the powerband higher in the RPM r...

Reaper® 518 Camshaft - Evolution Direct bolt-in replacement for EVO engines Can be used with stock valve springs, pushrods and lifters Will respon...