C1 - Street Assembly

This complete Street cylinder head package comes with CHI Custom made by REV (USA), stainless steel valves with hard chromed stems. We use Chrome-Molly-7 Degree Retainers, Chrome Moly Machined Valve Locks (not the cheaper stamped steel versions), and Isky 805-DO valve springs. Seat pressures are typically 130lbs, with a 330lbs/in spring rate.

This package is ideal for hydraulic camshafts to 230@.050 with .570″ lift, or small solids up to 230@.050 and .570″ lift that are street driven regularly, Heads are finished off with matching hardened spring pad locators to positively locate the valve spring and Viton valve stem seals for unsurpassed oil control.

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