About this product
Hydraulic - Big Mutha' Thumpr: Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.
Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.
Hydraulic - Big Mutha' Thumpr: Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.; 295/312 Advertised Duration, 243/257 Duration .050", .522"/.507" Lift, 107 Lobe Separation; Valve spring upgrade required
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.






