I put a 350 chevy and a 700r4 trans in my 51 Chevy today. I used Waltons mounts and trans crossmember. They are perfect. Everything bolted in like it was factory. I have the stock front end and steering. Has anyone done this? What did you use for exhaust manifolds? It looks like the drivers side is going to be a challenge. I really don't want to use headers if I can avoid it. Thanks for your help.