About this product
Limited street use or bracket racing. 10.5:1+ compression, 3500+ stall or 4 speed. 4.10 or lower gears. Radical Idle.
Chevrolet GEN IV 396-454 Big Block Engines Originally Equipped with Flat Tappet Camshafts
Description supplied by JDMuscle through its current Shopify listing. Product, performance, and health claims are the seller’s and have not been independently verified by StorkScout.






