I just measured my assembly line original with the AAC stamp, my measurement is 4 7/16"

I haven't located my bracket yet, but here's an image I saved from a recent eBay ad (sorry, can't find notes on who to credit it to) which matches the above measurement and confirms PM'd recollection that the difference in length was about 3/4".

Interesting. In that case, what year Corvettes is this applicable to?


Thanks guys,

Jason

Far as I know, it was the 1963 model year only, although not on the fuel injected engine.
But hopefully a Corvette-knowledgeable member can confirm.

AAC is the longer Z-28 bracket p is the shorter bracket. This has been my observations over the years. Not a guarantee as I have had original short brackets with no stamping

Thank you very much guys. It looks like mystery solved.


Thanks,

Jason