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136 S&S M8 engine

M8 Engine Performance and Upgrades

2017-2025 M8 Engine Performance and Upgrades

96 products

FLO Oil Filter for 1991-2026 Harley Davidson EVO, Twin Cam, & M8

FLO Oil Filter for 1991-2026 Harley Davidson EVO, Twin Cam, & M8

$6

Trask Big Papi Air Cleaner - Gen 2 M8

Trask Big Papi Air Cleaner - Gen 2 M8

$649.99

#534-821 ZIPPER'S 4.085 M8 +.010 121

#534-821 ZIPPER'S 4.085 M8 +.010 121" +3.7CC PSKT

$619

HPI Milwaukee 8® Throttle Bodies

HPI Milwaukee 8® Throttle Bodies

$770

Sold out HPI 70MM M8® Center-Flo 2.0 Throttle Body

HPI 70MM M8® Center-Flo 2.0 Throttle Body

$880

Red Shift Cams® RS532 for Generation II

Red Shift Cams® RS532 for Generation II

$329.99

Trask M8 Crankcase Vented Transmission Top Cover

Trask M8 Crankcase Vented Transmission Top Cover

$349

Chris Revis 474 Rocket Cam M8 17-UP Install kit

Chris Revis 474 Rocket Cam M8 17-UP Install kit

$256

S&S Chain Drive - Oil Cooled - 475 Cam - Chrome Pushrods - M8

S&S Chain Drive - Oil Cooled - 475 Cam - Chrome Pushrods - M8

$1,699.99

Save $840 Andrews Cam Bolt-In 485 Complete Cam Installation Kits 17 up M8

Andrews Cam Bolt-In 485 Complete Cam Installation Kits 17 up M8

Regular price $1,099 Sale price $259

Sold out S&S Roller Rocker Arms - 1.640 Rocker Ratio - M8

S&S Roller Rocker Arms - 1.640 Rocker Ratio - M8

$675

2023.5 & Newer Catapult Gen 2 Intake for Use on Gen 1 Platform

2023.5 & Newer Catapult Gen 2 Intake for Use on Gen 1 Platform

$915

Zipper’s Milwaukee-Eight® Big Bore Cylinder Kits 117

Zipper’s Milwaukee-Eight® Big Bore Cylinder Kits 117" to 128" for 2024 + Gen 2

$1,399

S&S Cam Chest Kit without Cams - Chain Drive - Water Cooled M8

S&S Cam Chest Kit without Cams - Chain Drive - Water Cooled M8

$1,499.99

S&S Cam Chest Kit without Cams for Chain Drive Oil Cooled M8

S&S Cam Chest Kit without Cams for Chain Drive Oil Cooled M8

$1,499.99

77 Cycles Billet 6 speed Door M8 23.5 up

77 Cycles Billet 6 speed Door M8 23.5 up

$349.99

Cycle-Rama CR482 M-8 Complete Cam Installation Kit 17 up M8

Cycle-Rama CR482 M-8 Complete Cam Installation Kit 17 up M8

$349

Red Shift Cams® 472 for Milwaukee-Eight® Engines

Red Shift Cams® 472 for Milwaukee-Eight® Engines

$329.99

Red Shift Cams® 468 for Milwaukee-Eight® Engines

Red Shift Cams® 468 for Milwaukee-Eight® Engines

$329.99

Red Shift Cams® RS528 Cam Specifically Developed for Generation II Milwaukee-Eight® Engines

Red Shift Cams® RS528 Cam Specifically Developed for Generation II Milwaukee-Eight® Engines

$329.99

Trask Assault Series CAM Cover With Window for

Trask Assault Series CAM Cover With Window for

$429.95

M-8 Big Bore Kits 124

M-8 Big Bore Kits 124" and 128"

$1,608

Save $44.96 S&S 132

S&S 132" Big Bore Cylinder Kit - Black/Highlighted Fins - M8

Regular price $1,544.95 Sale price $1,499.99

Save $45.95 S&S 129

S&S 129" Big Bore Cylinder Kit - -107 M8 4.3/8 stroke

Regular price $1,544.95 Sale price $1,499

Cycle Rama CR470 Complete Cam Installation Kits 17 up M8

Cycle Rama CR470 Complete Cam Installation Kits 17 up M8

$320

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