Chevy Small Block 283-305-327-350 engines. PowerForce+ series harmonic damper that is 18.1 SFI Certified made by Professional Products. It is intended for racing applications and high performance street applications to 10,000 RPM plus. This damper is 6-3/4 inches in diameter and approximately 1-1/8 inches thick. This is one of Professional Products most popular dampers for the internally balanced small block Chevys. This damper is dimensionally identical to the stock G.M. 6-3/4 inch damper. It has 60 degrees of easy to read timing marks and engraved marks every 90 degrees. The PowerForce high performance street model weights approximately 9.3 pounds.
Recommended for the SFI POWER FORCE + HARMONIC DAMPER CHEVY SB 283-305-327-350 (6-3-4")