MK136 Engine

Cylinder Heads:High-flow cylinder heads with premium seats, guides, valves, springs, and seals+1.00 mm oversized intake and exhaust valvesValves are 0.030" longer than stock for improved valvetrain geometry0.605" max lift valve spring475G gear drive camEnlarged cooling passage around the exhaust seatsS&S exclusive breather boxesCrankcase:Patented dual-spray piston cooling jetsPrecision machined oil scraperEnlarged oil sumpContoured floor allows oil to easily drain back to the sumpMK136:Retains stock engine heightIncludes 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