S&S CYCLE MK136 Black Edition Engine with 550G Cam Harley Davidson FLH / FLHR / FLHRC / FLHRXS 1750-1923cc 17-23

Features:

• High-flow cylinder heads with premium seats, guides, valves, springs, and seals.
• +1.00 mm oversized intake and exhaust valves.
• Valves are 0.030" longer than stock for improved valvetrain geometry
• 0.605" max lift valve spring.
• 550G gear drive cam.
• Enlarged cooling passage around the exhaust seats.
• S&S exclusive breather boxes.
• Patented dual-spray piston cooling jets.
• Precision machined oil scraper.
• Enlarged oil sump.
• Contoured floor allows oil to easily drain back to the sump.
• Includes forged pistons, S&S performance oil pump and cam support plate, premiun tappets and tappet cuffs, billet aluminum covers, sprocket shaft spacer, Champion spark plugs and cam cover badge.
• Made in the USA.

Fit the models: