S&S Super Stock Cylinder Heads For Harley Evolution Big Twin
S&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.
Features:
- Available in natural and black powder-coat finish
- S&S Super Stock 10:1 ratio piston kits are required and sold separately
- Intake manifold, pistons and gasket kits are sold separately
- Must reuse stock headbolts
- Made in the USA
- Sold in pairs







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