I recently purchased an 83 regal estate wagon and am in the process of street rodding it. Due to engine trouble with the 252ci v6, I am contemplating swaping it out. I can get my hands on a Buick 350 or an olds 454ci(455?). What considerations do I need to think about? will these bolt to the stock trans? (3speed auto no overdrive) (is this a turbo 350 trans?) I am new to the buick scene but so far am in love. Any advice would be greatly appreciated.