Harley Engine Heads and Parts

S&S CYCLE Cylinder Head Kit Big Twin 90-1498Heads come completely assembled with valve seats, valves, guides, seals, .590" lift valve springs, collars and valve keepers, Complete kits also include rocker cover gaskets, head gaskets and miscellaneous...

FEULING OIL PUMP CORP. Valve Spring Shims 1218Set up the valve springs correctly to match the open height spec to peak camshaft lift for optimum valvetrain stability and performance, Quality machined spring seat shims, Sold as a 2-pack; includes one each...

FEULING OIL PUMP CORP. Valve Sprint Shims 1217Set up the valve springs correctly to match the open height spec to peak camshaft lift for optimum valvetrain stability and performance, Quality machined spring seat shims, Sold as a 2-pack; includes one each...

EASTERN MOTORCYCLE PARTS Mount Studs A-16864-48Made in the U.S.A.

EASTERN MOTORCYCLE PARTS Rocker Box Stud Set Big Twin M-4-4538Includes eight long studs, two short studs and one top motor mount stud, One kit required for each head

S&S CYCLE Cylinder Heads 106-4277High port flow gives great performance now, and more later when additional upgrades are done, Heads are fully assembled with springs and valves, Compression ratios vary depending on cylinder heads chosen, pistons used and...

S&S CYCLE Cylinder Heads Twin Cam 106-3227High port flow gives great performance now, and more later when additional upgrades are done, Heads are fully assembled with springs and valves, Compression ratios vary depending on cylinder heads chosen, pistons...

S&S CYCLE Cylinder Heads Twin Cam 106-3233High port flow gives great performance now, and more later when additional upgrades are done, Heads are fully assembled with springs and valves, Compression ratios vary depending on cylinder heads chosen, pistons...

S&S CYCLE Cylinder Heads Twin Cam 106-3255High port flow gives great performance now, and more later when additional upgrades are done, Heads are fully assembled with springs and valves, Compression ratios vary depending on cylinder heads chosen, pistons...

S&S CYCLE Cylinder Heads Twin Cam 106-3240High port flow gives great performance now, and more later when additional upgrades are done, Heads are fully assembled with springs and valves, Compression ratios vary depending on cylinder heads chosen, pistons...

S&S CYCLE Headbolt Kit 93-3070Includes eight 3.374" headbolts and eight .100" washers, For use with S&S Twin Cam-style heads and custom applications that require equal length headbolts, Made in the U.S.A.

S&S CYCLE Cylinder Heads Twin Cam 90-1293High port flow gives great performance now, and more later when additional upgrades are done, Heads are fully assembled with springs and valves, Compression ratios vary depending on cylinder heads chosen, pistons...

S&S CYCLE Cylinder Head Kit Big Twin 90-1004S&S heads give great performance, and work with additional upgrades, Kits are fully assembled, and include stainless steel valves and high-lift springs (up to .640 lift), Intake manifold, pistons and gasket...

S&S CYCLE Cylinder Head Kit Big Twin 90-1504S&S heads give great performance, and work with additional upgrades, Kits are fully assembled, and include stainless steel valves and high-lift springs (up to .640 lift), Intake manifold, pistons and gasket...

S&S CYCLE Cylinder Head Kit Big Twin 90-1491Heads come completely assembled with valve seats, valves, guides, seals, .590" lift valve springs, collars and valve keepers, Complete kits also include rocker cover gaskets, head gaskets and miscellaneous...

S&S CYCLE Cylinder Head Kit Big Twin 90-1496Heads come completely assembled with valve seats, valves, guides, seals, .590" lift valve springs, collars and valve keepers, Complete kits also include rocker cover gaskets, head gaskets and miscellaneous...

S&S CYCLE Performance Replacement Head 106-6059S&S heads are available to be used with stock-style flat-top pistons, Kits are fully assembled, and include stainless steel valves and high-lift (.585") springs, Intake manifold and gasket kits are sold...

S&S CYCLE Cylinder Head Kit 90-1488Heads come completely assembled with valve seats, valves, guides, seals, .590" lift valve springs, collars and valve keepers, Complete kits also include rocker cover gaskets, head gaskets and miscellaneous hardware with...

S&S CYCLE Cylinder Head Kit 90-1499Heads come completely assembled with valve seats, valves, guides, seals, .590" lift valve springs, collars and valve keepers, Complete kits also include rocker cover gaskets, head gaskets and miscellaneous hardware with...

S&S CYCLE Exhaust Stud Flange 50-04935/16-18, 5/16-24 x 1.910", Zinc-plated, Steel, Made in the U.S.A.