My Oliver rods use a 7/16" bolt.

FYI

 

Carrillos with CARR rod bolts. A bit on the expensive side but you get what you pay for...

 

Well I went with the olivers considering their weight, got them from AMS for $650!!! What a great deal! Plus I had to buy a set of coilpacks, holy ***** are those expensive. But either way in happy. Thanks for everyone's input! Also I am thinking of just slapping the rods on the pistons and calling it a day. But should i balance the assembly?

 

Weigh the rods to make sure they are close. Within a gram...