383 440 swap. Same flywheel?

I realize that this post is 6 months old, but A STEEL CRANK FROM A 66-72 440 WILL BOLT DIRECTLY INTO YOUR LATER BLOCK!!! There are aftermarket steel cranks that will too! THEN your 383 flywheel will fit with no mods. You use the older harmonic balancer and it's all internally balanced just like the 67-72 motors.. You won't have to waste time or lop the end off an expensive 4 speed transmission!

What you are doing is trying to put a SADDLE on a COW! If you engineer it long enough, you MAY get it on..you MAY even get to RIDE it..BUT IT AIN'T THE RIGHT THING TO DO!!!