Donman

What is the maximum cubic inches you can get from a Bowtie 502 block and what pieces do you need to get there ?

DonRoc

Bore 4.560 if you sonic test and a 4.25 crank would be safe. 557CI

Griff

588

CB-BLR

4.56 Bore
4 3/8" stroke

Chris

Young Performance

Personally, I wouldn't put a 4 3/8 crank in a 9.8 deck height block. The rod angle is to steep for my taste. I would stick with a 4.25" crank and you could go all the way to 4.600. That would make a 565 ci. You can take that block to 4.625" bore as long as you sonic test it. You should still have .250-.300 wall thickness at 4.625" bore. I have taken countless bowties to 4.600 with no problems.
Eddie

raeburn

I had a 502 bowtie at 4.600 with stock crank (think it worked out to 525 cu.) ran great with an easy 600 hp/600 ftlbs. at 9:1 compression with Dart intake and EMI exhaust. Loved that engine!!

Young Performance

That would make a 532 ci.
Eddie

Payton

Could you guys explain Sonic Testing? Are you checking the thickness or strength of the cylinder walls? And you do this before boring, right? Otherwise you've ruined a block that could be used with less bore. Am I close?

Donman

Thanks for the input guys.

Griff

Yep, sonic testing will check for wall thickness.