Cylinder Heads & Valvetrain

Features Forged from 8620 steel, heat-treated then shot-peened for additional strength and durability 3/4" long bushings instead of 1/2" long bush...

Features Machined from 8620 steel heat treated forgings for maximum strength 0.750" long S&S rocker arm bushing which provides 50% more load b...

Features Improved oil control High quality CNC machined 1:1 stock knuckle rocker arm ratio Compatible with S&S or stock tins Kit contains 4 ro...

Features Forged from 8620 steel, heat-treated then shot-peened for additional strength and durability 3/4" long bushings instead of 1/2" long bush...

Features Replacement for forged rocker arms Made in the USA Notes Four required per motor. Not for RH Sportster. Will also work with S&S V...

Features Designed usng Finite Element Analysis (FEA) and forged from 8620 steel for strength Eliminate thrusting on valves for decreased wear on t...

Features Heads are fully assembled with springs and valves Designed for '99-'05 engines with stock crankcase Good for touring bikes and other heav...

Features S&S heads give great performance, and work with additional upgrades Compatible with stock 3-1/2" or 3-5/8" bore engines Fully assembl...

Features S&S heads give great performance, and work with additional upgrades Compatible with stock 3-1/2" or 3-5/8" bore engines Fully assembl...

Features Heads come completely assembled with valve seats, valves, guides, seals, .590" lift valve springs, collars and valve keepers Kit also inc...

Features Heads come completely assembled with valve seats, valves, guides, seals, .590" lift valve springs, collars and valve keepers Kit also inc...

Features Heads come completely assembled with valve seats, valves, guides, seals, .590" lift valve springs, collars and valve keepers Kit also inc...

Features Heads come completely assembled with valve seats, valves, guides, seals, .590" lift valve springs, collars and valve keepers Kit also inc...

Features Heads are fully assembled with springs and valves Works great with 88" to 103" stock motors, but are ideal for larger stroker or big bore...

Features Fully assembled, and include stainless steel valves and high-lift springs Optimized for smaller displacement engines Available to be used...

Features Fully assembled, and include stainless steel valves and high-lift springs Optimized for smaller displacement engines Available to be used...

Features Heads are fully assembled with springs and valves Works great with 88" to 103" stock motors, but are ideal for larger stroker or big bore...

Features Heads are fully assembled with springs and valves Designed for stock 88" to 103" engines or slightly modified engines up to 110" Moderate...

Features Heads are fully assembled with springs and valves Designed for stock 88" to 103" engines or slightly modified engines up to 110" Moderate...

Features Heads are fully assembled with springs and valves Designed for '06-'16 engines with stock crankcase Good for touring bikes and other heav...

Features Heads are fully assembled with springs and valves Designed for '06-'16 engines with stock crankcase Good for touring bikes and other heav...

Features Heads are fully assembled with springs and valves Designed for '99-'05 engines with stock crankcase Good for touring bikes and other heav...

Features Give your Shovelhead engine that nostalgic look of a Panhead Kit consists of a set of S&S P-series cylinder heads with rocker cradles...

Features Heads come completely assembled with valve seats, valves, guides, seals, .590" lift valve springs, collars and valve keepers Kit also inc...