Big Inch Smallblock

Blucuda413 said
What is your experience in using a 4.250 crank in a smallblock. I'm sure clearancing at bottom of cylinder would be required but is there anything else?

We did this 427 inch small block for Tim's red Valiant a few years back. It worked great. Car went 160 mph at Portland International. Hughes did the heads. Block was a Mopar reproduction 340.