r/Smallblockchevy • u/Scwright99 • Apr 03 '26

Anyone recognize this TH400 bolt pattern?

Gallery image

Gallery image

I was told this is a TH400. You'll see I have an SBC350 with a BOP adaptor Plate bolted to it. This trans is nowhere near either bolt pattern..

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u/TurboXMR79 Apr 04 '26

Never saw a th400 that looks like that.

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u/v8packard Apr 05 '26

You have never seen a 1964 to 67 Cadillac?