Camaro, timing chain cover, used original GM part. This cover is correct for the 396- 375hp & 427-425hp COPO and 427 aluminum ZL-1 COPO engines. The big block high perf engine uses this cover because they have 8 inch harmonic balancer and the timing tab is located closer to the center of the crank. The part you receive will require cleaning and painting for restoration purposes.
