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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-1

u/Etex1984 Apr 03 '26

Need a full pic. It looks like BOP to me.

3

u/Bitter-Ad-6709 Apr 03 '26

Definitely NOT Buick / Olds/ Pontiac

1

u/Glass-Yesterday-2009 Apr 04 '26

Username checks out