[undy]

Kevin,

I believe that Scat's 4.125 stroke crank with a small over-bore will give you that magic "427" you're looking for with a 390 block. You will need purpose built stroker pistons (readily available) and a set of Scat or other aftermarket rods. Most of the aftermarket crank and rod mfrs use Chevy BB rod/rod bearings which is a much stouter design over the FE rods/bearings.

You can get the rotating assembly from any one of our board vendors, Blykins, Keith Craft or George Anderson + others. I would suggest you get the whole deal at once, crank, rods, bearings, rings, harmonic balancer and flywheel from the same dealer. I would also offer a suggestion on having everything internally balanced by the vendor too prior to shipment.

Dave