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Tx Firefighter · 11-08-2005, 09:34 PM

Tranny will bolt up to the big block. It may prove to be too weak in the long run depending on how you treat it. The 454 is probably in front of a Turbo 400 trans now unless someone changed it out previously. It's much tougher than the 700r4, but no overdrive.

HEI is the same for the 454 and your current small block.

You'll need factory 68-72 big block mounts.

11-08-2005, 09:34 PM	#3
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Re: Engine Swap Tranny will bolt up to the big block. It may prove to be too weak in the long run depending on how you treat it. The 454 is probably in front of a Turbo 400 trans now unless someone changed it out previously. It's much tougher than the 700r4, but no overdrive. HEI is the same for the 454 and your current small block. You'll need factory 68-72 big block mounts. __________________ I'm on the Instagram- @Gearhead_Kevin