About this product
Thumpr 243/257 Hydraulic Flat Cam for Chevrolet Big Block 396-454. Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle. Chevrolet GEN IV 396-454 Big Block Engines Originally Equipped with Flat Tappet Camshafts
Description supplied by Titan Motorsports through its current Shopify listing. Product, performance, and health claims are the seller’s and have not been independently verified by StorkScout.






