Engine

Replace your stock M8 points cover with a Gloss Carbon Fiber cover from Slyfox. Fits: Harley Models with Cowbell style horn cover Fits M8 Motor Pre-Preg 3K Full Twill Aerospace Grade / Mil Spec Vacuum Bagged Autoclave Cured Gloss Finish

Replace your stock M8 points cover with a Carbon Fiber cover from Slyfox. Fits: Harley Models with Cowbell style horn cover Fits M8 Motor Pre-Preg 3K Full Twill Aerospace Grade / Mil Spec Vacuum Bagged Autoclave Cured

Add that touch of detail to your Twin Cam motor and trans with Santoro Fabworx Chacho Bolt Kit. This Deluxe kit comes with covers and Stainless-Steel Socket Head hardware to replace your OE bolts for the Rocker Boxes, Lifter Blocks, Cam Cover,...

Add that touch of detail to your Twin Cam motor and trans with Santoro Fabworx Chacho Bolt Kit. This Deluxe kit comes with covers and Stainless-Steel Socket Head hardware to replace your OE bolts for the Rocker Boxes, Lifter Blocks, Cam Cover,...

Add that touch of detail to your Twin Cam motor and trans with Santoro Fabworx Chacho Bolt Kit. This Deluxe kit comes with covers and Stainless-Steel Socket Head hardware to replace your OE bolts for the Rocker Boxes, Lifter Blocks, Cam Cover,...

Add that touch of detail to your Twin Cam motor and trans with Santoro Fabworx Chacho Bolt Kit. This Deluxe kit comes with covers and Stainless-Steel Socket Head hardware to replace your OE bolts for the Rocker Boxes, Lifter Blocks, Cam Cover,...

Add that touch of detail to your M8 motor and trans with Santoro Fabworx Chacho Bolt Kit. This Deluxe kit comes with covers and Stainless-Steel Socket Head hardware to replace your OE bolts for the Rocker Boxes, Lifter Blocks, Cam Cover, Transmission End...

Add that touch of detail to your M8 motor and trans with Santoro Fabworx Chacho Bolt Kit. This Deluxe kit comes with covers and Stainless-Steel Socket Head hardware to replace your OE bolts for the Rocker Boxes, Lifter Blocks, Cam Cover, Transmission End...

Add that touch of detail to your M8 motor and trans with Santoro Fabworx Chacho Bolt Kit. This Deluxe kit comes with covers and Stainless-Steel Socket Head hardware to replace your OE bolts for the Rocker Boxes, Lifter Blocks, Cam Cover, Transmission End...

Add that touch of detail to your M8 motor and trans with Santoro Fabworx Chacho Bolt Kit. This Deluxe kit comes with covers and Stainless-Steel Socket Head hardware to replace your OE bolts for the Rocker Boxes, Lifter Blocks, Cam Cover, Transmission End...

Turn your stock 107" into a monster of a 124". For Oil Cooled Milwaukee Eight models Only. Non-Highlighted fins with black pushrod tubes. Gear drive. Fits: Harley M8 Models (Oil Cooled) Big Bore Kit: 107" to 124" Big Bore Kit Winkle Black Finish...

Turn your stock 107" into a monster of a 124". For Oil Cooled Milwaukee Eight models Only. Highlighted fins with black pushrod tubes. Gear drive. Fits: Harley M8 Models (Oil Cooled) Big Bore Kit: 107" to 124" Big Bore Kit Wrinkle Black Finish...

Turn your stock 107" into a monster of a 124". For Oil Cooled Milwaukee Eight models Only. Highlighted fins with chrome pushrod tubes. Gear drive. Fits: Harley M8 Models (Oil Cooled) Big Bore Kit: 107" to 124" Big Bore Kit Winkle Black Finish with...

From Star Racing we are now offering their line of cams for M8 models. The 3/4 Cam is their best selling cam that gives you the most lift for reliable performance. Great for 124-133 kits. Fits: 2017-2021 Harley M8 Models Best Seller - Most Lift for...

Upgrade your entire camchest in one easy to order kit from S&S Cycle. Choose from a 465, 475, 540 or 550 cam. Chain drive with black pushrod tubes for Twin cooled M8 motors. Fits: 2017-2021 Harley Twin Cooled M-Eight Models All parts in each kit...

Upgrade your entire camchest in one easy to order kit from S&S Cycle. Choose from a 465, 475, 540 or 550 cam. Chain drive with chrome pushrod tubes for Twin cooled M8 motors. Fits: 2017-2021 Harley Twin Cooled M-Eight Models All parts in each kit...

S&S gives you 30% increase in HPI and torque over stock with their V111 Long Block Engines. Short stroke for less vibration. Fits: 1984-99 Harley-Davidson® big twin chassis and custom frames designed for Evolution® big twin engines. +30%...

S&S 482 cams for the Sportster. Fits: 2000-2021 Harley Sportster XL models (Except 21 Sportster S/RH1250S) Bolt in cam for 00-21 models only Recommended for S&S 883-1250 conversion kits Best performance gains 3500-3500 rpm Compatible with...

1250CC Conversion kit from S&S for Harley Sportster models. Fits: 1986-2021 Harley Sportster XL (Except 21 Sportster S/RH1250S) Forged pistons - coated piston skirts with measurement window and S&S logo Forged pistons have larger than stock...

1250CC Conversion kit from S&S for Harley Sportster models. Fits: 1986-2021 Harley Sportster XL (Except 21 Sportster S/RH1250S) Forged pistons - coated piston skirts with measurement window and S&S logo Forged pistons have larger than stock...

From Star Racing we are now offering their line of cams for M8 models. Famous in the Drag racing community for over four decades. Fits: 2017-2021 Harley M8 Models Biggest Cam for stock M8 1700 to 5500 RPM Range .485 Lift, Intake Closes at 25...

The Red Shift Cams® RS472 for the Milwaukee-Eight®, is a bolt-in grind for 114, 117 & larger Hot Rod Milwaukee-Eight® engines. The prime power range starts a bit later than the early torque RS468. If you like to stay in the throttle until...

OEM replacement cam cover for 2017-2021 Harley M8 models. Replaces OEM# 25700367. Matte Black finish Fits: 2017-2021 Harley M8 models, Repl. OEM#25700367 Die-cast aluminum construction Accepts OEM-style time covers Matte Black Finish Uses OEM...

OEM replacement cam cover for 2017-2021 Harley M8 models. Replaces OEM# 25700367 Fits: 2017-2021 Harley M8 models, Repl. OEM#25700367 Die-cast aluminum construction Accepts OEM-style time covers Uses OEM...

Match the Performance Machine Vision products with their Hydraulic Clutch Actuator cover. Black Ops finish. Does require a master cylinder with an 11/16" bore and custom hydraulic lines. Fits: 2014-2020 Harley Touring models Aluminum lens bezel...

Match the Performance Machine Vision products with their Hydralic Clutch Actuator cover. Contrast Cut finish. Does require a master cylinder with an 11/16" bore and custom hydraulic lines. Fits: 2014-2020 Harley Touring models Aluminum lens bezel...

Match the Performance Machine Vision products with their Hydralic Clutch Actuator cover. Chrome finish. Does require a master cylinder with an 11/16" bore and custom hydraulic lines. Fits: 2014-2020 Harley Touring models Aluminum lens bezel eliminates...

New Vision style Derby Cover from Performance Machine allows you to view the internals of your bike. Black Ops finish, Includes new gasket and hardware. Fits: 2016-2021 Harley Touring and 2015 FLHTCUL/FLHTKL models Direct replacements for stock derby...

New Vision style Derby Cover from Performance Machine allows you to view the internals of your bike. Contrast Cut finish, Includes new gasket and hardware. Fits: 2016-2021 Harley Touring and 2015 FLHTCUL/FLHTKL models Direct replacements for stock derby...

New Vision style Derby Cover from Performance Machine allows you to view the internals of your bike. Chrome finish, Includes new gasket and hardware. Fits: 2016-2021 Harley Touring and 2015 FLHTCUL/FLHTKL models Direct replacements for stock derby...

New Vision style Cam Cover from Performance Machine allows you to view the internals of your bike. Add the Black Ops finish to your bike. Includes new gasket and hardware. Fits: 2017-2021 Harley M8 models Direct replacement for stock cover Machined...

New Vision style Cam Cover from Performance Machine allows you to view the internals of your bike. Add the Contrast Cut finish to your bike. Includes new gasket and hardware. Fits: 2017-2021 Harley M8 models Direct replacement for stock cover Machined...

New Vision style Cam Cover from Performance Machine allows you to view the internals of your bike. Add the chrome finish to your bike. Includes new gasket and hardware. Fits: 2018-2020 Harley M8 models Direct replacement for stock cover Machined...

The factory oil control valve on all oil cooled M8 engines regulates the amount of oil flowing to the oil cooler/heads. The stock assembly includes a check ball retainer that is formed steel. Over time, this retainer can fatigue and break, causing chips...

Upgrade your entire camchest in one easy to order kit from S&S. This kit includes the 465 cam. Fits Chain drive Oil-Cooled applications only. Kit includes chrome pushrod tubes. Fits: 2017-2020 Harley Oil-Cooled M-Eight Models Oil Pump/Cam...

Upgrade your entire camchest in one easy to order kit from S&S. This kit includes the 475 cam. Fits Chain drive Oil-Cooled applications only. Kit includes chrome pushrod tubes. Fits: 2017-2020 Harley Oil-Cooled M-Eight Models Oil Pump/Cam...

Big lift cams can open up the high rpm potential of the M8 powerplant, but they can also cause their own issues due to the extra stresses and stock valvetrain geometry. Excessive valve thrust and valvetrain wear drove S&S engineers to design...

Building your M8 for big power? We've got the parts you need to bulletproof the top end of your valvetrain in one convenient kit! S&S performance parts are direct replacement for OEM pieces, but are stronger and more durable, giving your M8 the...

Turn your stock 114"/117" into a monster of a 128". For Oil Cooled Milwaukee Eight models Only. Wrinkle Black Non-Highlighted fins with chrome pushrod tubes. Chain Drive. Fits: Harley M8 Models (Oil Cooled) Big Bore Kit: 114" to 128" Big Bore Kit...

Turn your stock 107" into a monster of a 124". For Oil Cooled Milwaukee Eight models Only. Highlighted fins with chrome pushrod tubes. Chain drive. Fits: Harley M8 Models (Oil Cooled) Big Bore Kit: 107" to 124" Big Bore Kit Winkle Black Finish with...