Re: How hard to swap SBC 400 into 71 firebird?
I'm not an expert on the swap, but some things I can think of: You are swapping from a Pontiac Motor to a Chevrolet... Correct ?
1) Pontiac's and Chevrolet's have a different bolt pattern for the transmission. I don't think the one you have will work.
2) The fuel pumps are on opposite sides... you will need to run a new gas line.
3) you will need your accessory brackets from a Chevy.
4) I'm not sure if the exhaust will line up or not.
The swap can be done, but I would research it first.
69 Camaro -originally a LM1 car. 327, Edelbrock E-streets, hooker, DUI performance distributors, ultradyne cam, stewart, TRW etc. Vintage Air, AGR steering, Corbeau GTSII seats, 700R4 transmission, 12-bolt w/Eaton 4.11:1