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.
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
COMP Cams Xtreme Oval 4 & 7 Swap Firing Order 47S278XOS-6 Solid Camshaft for Small Block Chevy
1/4-3/8 tight. 327-358c.i. 11:1+ compression. 2 BBL with good intake and exhaust.
Oval Track 4/7 Swap 248/250 Solid Flat Cam for Chevrolet Small Block
O-Track 4/7 Swap 248/250 S-Flat Cam SBC
COMP Cams Camshaft CS 47S 278Xo-6
CamShaft, CS 47S 278XO-6
OT 47 248/250 SFTSBC
Engine Camshaft
None