I want an auto that can handle ~900-1000 engine horsepower. I am going with a TH400, but what all is required for the swap into an LS1 F-body? Custom bellhousing? Custom converter? How will the speedometer issue work? Forgive me if I sound ignorant, but I have tried some research, and this will be great to reference back to.

My cam is a 248/254 615/613 113LSA. The engine is a 408 that makes around 650 crank HP, but it will be sprayed down the road with about a 200shot. What would be a big enough converter for this? I am thinking somewhere in the 4500 range.

Also, for anyone interested, I am selling my T-56 parts as well.

Thanks,
Matt

 

Look at the sticky above you... it gives many answers to your questions...