Small Block & Big Block Chevy Specific - procomp bolts

Has anyone used the bolts from Procomp,like head and main studs?

I bought a set of head and main stud,,either the studs have thread damage or the nuts :barf:

procomp bolts and manley are a softer steel than arp. they have alot more bolt stretch then arp's. i always run arp.

Yes is knew that,i Can´t find any specs for the streach?

Stay away from the Procomp bolts!!! I bought several sets of head bolts and main bolts and had nothing but trouble from them after installation. First off the thread pitch is not correct and they will leak coolant like no other, you will need lots of silicone to get them to seal. The next thing that will happen after getting them to seal up is they will break after you TQ them down 3 times. The bolts have been hardend to too high of a rockwell hardness and they are brittle.

I used the outer studs to bolt down my 4 bolt main caps, the inners are ARP bolts, that is the only way ill used them.