COMP Cams Camshaft CS 321QnHR-8 - 12-872-11

Drag Race 267/275 Hydraulic 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.

Best in larger c.i. engines. Needs 11.5:1+ compression and 4500 stall.

Drag Race 267/275 Hydraulic Roller Cam 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.