COMP Cams Magnum Chromoly Roller Tip Rocker Arm - 3/8 in Stud Mount - 1.52 Ratio - Small Block Chevy / GM V6 1412-1 MAN23650TS-16 IMCA approved for IMCA modifieds

IMCA approved for IMCA modifieds and sport mod divisions

1975-1980 Chevrolet K20 CID 400 Transmission:Automatic 4WD

4L80 transmission require add-on bracket P/N 12656HKR For applications that were NOT originally equipped with a 200-4R transmission

Sealed unit

Driver Side Ports

COMP Cams Magnum Chromoly Roller Tip Rocker Arm - 3/8 in Stud Mount - 1.52 Ratio - Small Block Chevy / GM V6 1412-1 MAN23650TS-16 IMCA approved for IMCA modifiedsComp Cams Magnum Chromoly Roller Tip Rocker Arm 3 8 in Stud Mount 1. 52 Ratio Small Block Chevy GM V6 These Magnum Roller Rocker Arms for Small Block Chevy 265 400 applications are the ultimate street rocker. With a 3 8" stud diameter and 1. 52 ratio, they are designed for serious performance enthusiasts. All Magnum Roller Rocker Arms are constructed from 8620 chromemoly steel, which is a superior material that will not flex and assures maximum lift.