Pointer mounts off the front cover bolts allowing for use on most aftermarket front covers that may not incorporate a timing pointer. No more ground down bolt or chunk of welding rod. The standoffs may take some adjusting to get the proper alignment on the degree ring. Fits 396, 402, 427, 454 and most other aftermarket BBC blocks.
Pointer is for a seven inch in diameter degree ring.
Picture four, five and six show timing pointer on a front cover with a crank hub and degree ring. Timing cover, crank hub and degree ring are for picture purposes only.