4 bolt main

jwaller

Evil Genius/SyTy Guru
depends. you can use the GM ones which seem to have the easiest install. but do you want straight or splayed?...
 

Sy769

Donating Member
Here are the ones I used. I had them machine off the splayed bolts on one to use as a front cap. You will need a decent machine shop because many 4.3 blocks are way out of tolerance regarding main cap alignment.

http://store.summitracing.com/partdetail.asp?part=20795'
 
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