440 crank, 6pack rods, 383 block

[64plybelvwgn]

I have a good steel 440 crank, 440 - 6pack rods that have the beams ground with bronze bushings, and a 68-69 HP 383 block. Would it be worth it to have the block's main saddles bored to accept the 440 crank and the bottom of the cylinder walls clearanced ? I believe this would give me a 426, which would be plenty for my car. I was considering 452 heads just to keep within budget.
Comments???

 

[Meep-Meep]

Normally you would cut the mains on the crank to fit the block, but yeah, adding the extra arm to the 383 isn't such a bad idea. I think pistons for this combo are readily available so it's even that much easier. I would use either 906 or 915 heads because they have a better intake port than the 452's. And yes, you would have a low block 426 (or 431 .030" over).

 

[64plybelvwgn]

440 crank, 6pk rods, 383 block

Thanks for the response. Very much appreciated.

You're right. A 0.030 clean-up bore is likely in order.