About this product
Cylinder Heads:
- 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
- 475G gear drive cam
- Enlarged cooling passage around the exhaust seats
- S&S exclusive breather boxes
Crankcase:
- Patented dual-spray piston cooling jets
- Precision machined oil scraper
- Enlarged oil sump
- Contoured floor allows oil to easily drain back to the sump
MK136:
- Retains stock engine height
- 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
Description supplied by Eastern Performance Cycles through its current Shopify listing. Product, performance, and health claims are the seller’s and have not been independently verified by StorkScout.
