Quote: Ragtop, I just saw that 440 source crank with the 3.9" stroke yesterday and thought the same thing, no machine work. But if you read all his info it says they leave the crank counterweights large, I am guessing standard 440 size so you will still have to get the counterweights turned down some to fit that crank in the 383. But maybe just wait a few more months and he will have them all worked out as it seems his inventory is growing pretty quick. Anyway still a really good deal if you ask me and the way I am going to go with a set of Todd's pistons he mentioned in this thread and the 6.7 rods. Todd
When you get all of the rotating parts balanced (rods, pistons, crank) together (internal balancing that is), you may need to cut or add metal to the crank.
The site talks about having extra metal on the counterweights so it's easy to balance.
But the major machine work, of cutting the mains down to B-size, or the rods down to 2.2" has already been done!
