Harley Engine Heads and Parts

S&S CYCLE Replacement Silicone Solenoid Caps 55-1009Replacement silicone solenoid caps for S&S electronic and manual compression release kits, Made in the U.S.A.

S&S CYCLE Valve Spring Shim 90-2087.574" x 1.450" x .030", Black, steel construction

S&S CYCLE Cylinder Heads Black 900-0251High 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 Performance Replacement Head 106-6064S&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 Valve Guide +.001" 90-2211Cast iron intake/exhaust guide, Fits S&S Super Stock and stock Harley-Davidson cylinder heads, Guide ID measures aprox. .309"/.310" with enough material left for proper clearancing, Made in the U.S.A.

S&S CYCLE Valve Guide +.002" 90-2212Cast iron intake/exhaust guide, Fits S&S Super Stock and stock Harley-Davidson cylinder heads, Guide ID measures aprox. .309"/.310" with enough material left for proper clearancing, Made in the U.S.A.

S&S CYCLE Compression Release Kit 90-4915Electric compression releases open when you press the start button and close when the button is released, Manual compression releases are opened manually and close when the motor starts, Kits include the required...

S&S CYCLE Compression Release Hole Plug 90-4916Not for use on OEM heads, Made in the U.S.A.

S&S CYCLE Cylinder Heads 900-0349High 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 106-4270High 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 Retro Top End Conversion Kit 106-1070Give your Shovelhead engine that nostalgic look of a Panhead, Kit consists of a set of S&S P-series cylinder heads with rocker cradles, S&S roller rocker arms, S&S hydraulic tappets, billet tappet guides,...

S&S CYCLE Electrical Compression Release Unit 90-4914Electric compression releases open when you press the start button and close when the button is released, Kits include the required parts for installation, For ease of installation and removal, a...

S&S CYCLE Retro Top End Conversion Kit 106-1071Give your Shovelhead engine that nostalgic look of a Panhead, Kit consists of a set of S&S P-series cylinder heads with rocker cradles, S&S roller rocker arms, S&S hydraulic tappets, billet tappet guides,...

S&S CYCLE Performance Replacement Head 106-3466S&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 Performance Replacement Head 106-4570S&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 Replacement Silicone Solenoid Caps 50-1080Replacement silicone solenoid caps for S&S electronic and manual compression release kits, Made in the U.S.A.

S&S CYCLE Cylinder Head Kit Big Twin 90-1497Heads 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 Heads Twin Cam 90-1106High 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...