REPLACEMENT HOOK AND CLEVIS

KIT FEATURES: All kits sold with valve, spring, retainer, seat to do complete replacement of either intake or exhaust side All components are manufactured under iso 9001 certified factories Nitride coated components to improve heat transer & carbon buildup for increased valve train lifeVALVE FEATURES: Forged one-piece construction to help with weight reduction & improved flow Performance valves receive a swirl polish, smooth stem treatment, and are made of 21-2n/suh35ht stainless steelSPRING FEATURES: Springs are made of swosc-v material (oil-tempered steel wire) Some springs fearture a progressive style design with more coils on one end of the spring Progressive springs are heavier on one end and should always be installed towards the bottom Non-progressive springs are paint marked and should be installed towards the topSEATS & RETAINERS: Made from 4041 steel (select applications use 707546 aluminum) Designed to work with psychic stainless steel valves and springs.