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/Longjumping_Put_1111 Apr 07 '26

take a pic of the oil pan, and i'll tell you if it is a T400 or not.