Interchangeable with production cast iron head and offers a weight reduction of 50 lbs. per engine set. Features include single plug per cylinder (capability for dual), common 2.25" intake and 1.94" exhaust valve machining, 170cc combustion chamber, valve seats and guide inserts. Includes valves, springs, retainers and keepers.
High-pressure Valve Springs can be used on exhaust and intake valves for all high-performance applications. They feature a shorter, fully-compressed height and allow for increased valve lift. Springs maintain spring load at higher rpms. A must for high-per ...
These single-groove-style Hemi Split Locks are made from hardened material. They feature a 5/16" stem diameter and can be used for restoration or performance applications. Sold as cylinder head sets of 16 pieces. Note that two sets are required for all V8 engines. For 426-based Hemi.