1957 3100 BBC Question

[Valarius_Starchaser]

I have quite the question here and I imagine theres little "guarantees" until I start tearing into it but any previous experience would be nice.

I have a 1957 3100 chop top with a 1974 Nova Sub frame installed it was measured and boxed correctly 114 wheel center to wheel center now I am looking to install a 454 with a 4L80E to back it up

So the question is

1) Will I need to do firewall mods I have seen some guys cut up a wheelbarrow to open it up

2) To avoid that is it possible to get a mount that would move the engine a few inches forward

3)If anyone has moved it forward I imagine the electric fans and water pump would conflict any solutions?

Thanks in advance guys!