High port flow gives great performance now, and more later when additional upgrades are doneHeads are fully assembled with springs and valvesCompression ratios vary depending on cylinder heads...
S&S heads are available to be used with stock-style flat-top pistonsKits are fully assembled, and include stainless steel valves and high-lift (.585") springsIntake manifold and gasket kits are...
S&S heads are available to be used with stock-style flat-top pistonsKits are fully assembled, and include stainless steel valves and high-lift (.585") springsIntake manifold and gasket kits are...
S&S heads are available to be used with stock-style flat-top pistonsKits are fully assembled, and include stainless steel valves and high-lift (.585") springsIntake manifold and gasket kits are...