12-602-4 Big Mutha' Thumpr 243/257 Hydraulic Flat Cam for Chevrolet Small Block

Application Summary: Fits Chevrolet GEN 1 Small Blocks including the 262, 265, 267, 283, 302, 305, 307, 327, 350 and 400. Does not fit LT1/LT4, or factory roller Small Blocks built from 1985 and newer. GM gradually added roller camshafts to 305's and 350's from the mid 80's forward. Camaros/Firebirds/Corvettes received the roller cams early, but many trucks and SUV's had flat tappet cams until the mid 90's. Remove the intake or timing cover to confirm whether the block is a factory roller or flat tappet. Does not fit the LS1, LS2, LS3 or any LS-based 4.8, 5.3, 5.7, 6.0 and 6.2. 1955-1957 Chevrolet 265 engines require a groove on the 5th cam journal for oiling. Contact us for more information. Key Search Words: 265, 283, 307, 302, 305, 327, 350, 383, 400, 427, L46, L48, L65, LM1, LT-1, L82, L81, LS9, L83, L98, L05, LG3, LG4, LT1, LT4, Camaro, Corvette, Chevelle, Stingray, Silverado, C10, Firebird, Chevrolet, Chevy, Small Block Chevy, Caprice, Malibu, Impala, Nova, 355, GEN1, Monte Carlo, S10 Market Description: Big Mutha' Thumpr 243/257 Hydraulic Flat Cam for Chevrolet Small Block 262-400. Street/strip, needs 9.5:1 compression, 2800+ stall, intake Gears and headers, very rough idle. Product Description - Extended: Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle. Product Description - Long: Big Mutha' Thumpr 243/257 Hydraulic Flat Cam for Chevrolet Small Block Product Description - Short: COMP Cams Camshaft CS 295T H-107 BMT Th Product Description - Invoice: Big M-Thumpr 243/257 Hyd Flat Cam SBC Label Description: CAMSHAFT, CS 295T H-107 BMT TH UMPR Product Description - Short: BMT 243/257 HFTSBC AAIA Part Type Description: Engine Camshaft Shipping Restrictions: None