Kits include two intake or two exhaust valves, springs, retainers, spring bases, Viton valve seals and keepers
Valves are precision CNC machined from a stainless one-piece forging for higher strength & durability
High grade allows design to withstand high heat and maintain roundness
Micro polished 7mm stem for smoother finish and less friction resulting in improved performance
Multi angle back cuts for enhanced flow
High-performance beehive springs are designed with the latest advancements in valve spring technology
Springs are nano-peened, polished and 100% inspected through load testing to ensure they exceed stringent quality standards to provide superior valve stability at high rpm range
The premium choice for a performance upgrade, they are drop-in ready; no machining of heads is required
Retainers made from 4140 chromoly steel.
Heat treated and processed to maintain high strength and lightweight design
Keepers type FMOD7 lock angle 7 deg., triple radius groove, standard install height
Equipped with chromoly spring bases
Come with Viton seals designed for maximum retention of elastic properties, along with excellent resistance to fluids, heat, and aging
Spring dia. (large end) O.D. 1.445in./I.D. 1.000in.; spring dia. (small end): O.D. 1.095in./I.D. 0.650in.; installed height 180 lbs @ 1.850in.; open load 400 lbs @ 1.250in.; spring rate 370 lbs-in.; max coil bind 1.210in.