S&S CYCLE - CYLINDER SET - 4.25" BORE - UNHONED - WRINKLE BLACK W/O HIGHLIGHTS - M8 drag_part_38010312 a must for big motors

a must for big motors with a heavier clutch pull

2015 Triumph Rocket 3 Roadster

M-Eight Oil-Cooled™ motor pump has 27% more pressure and scavenge gear volume over stock

Hidden breathers are O-ringed at the heads and exits at throttle body/carb to create a virtually closed-loop system

S&S CYCLE - CYLINDER SET - 4.25" BORE - UNHONED - WRINKLE BLACK W/O HIGHLIGHTS - M8 drag_part_38010312 a must for big motorsCylinder Set 4. 25" Bore Unhoned Wrinkle Black w o Highlights M8 Highlights 4. 250" bore + Fitment 2017 2023 Harley Davidson Electra Glide Police FLHTPI (Street) 2017 2022 Harley Davidson FLHR Road King (Street) 2017 2023 Harley Davidson FLHRXS Road King Special (Street) 2017 2019 Harley Davidson FLHTCU Electra Glide Ultra Classic (Street) 2017 2023 Harley Davidson FLHTCUTG Tri Glide Ultra (Street) 2017 2023 Harley Davidson FLHTK Ultra Limited