COMP Cams Camshaft CS 312A-R7 - 12-906-9

Drag Race/Oval Track 276/284 Solid Roller Cam for Chevrolet Small Block

Application: Fits Chevrolet GEN 1 Small Blocks including the 262, 265, 267, 283, 302, 305, 307, 327

Application: 350 and 400. Does not fit LT1/LT4

Application: 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

Application: 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

Application: LS3 or any LS-based 4. 8, 5. 3, 5. 7

Application: 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.

Excellent for 12:1 compression, 358 with open carb. Sustained high RPM on long track. 5000+ stall, 11:1+ compression.

SBC - 1955-57 models have an oiling groove in the rear journal. The listed part numbered cams will not fit these models, so if you require a Camshaft with the oiling groove, please call us at 1-800-999-0853 or <a href="https://www.raptorracing.ca/Tech-support">contact us</a>, and we will assist you with placing an order. WARNING: Camshaft Optimized for use with a Melanized or Nitrided distributor Gear. Not compatible with cast or Steel Gears without similar surface treatments. Failure to utilize the proper distributor Gear will void all warranties and/or return policies.