Percy's Split-lock header bolts?
Thread Starter
Cruising
Joined: Jun 2007
Posts: 10
Likes: 0
Percy's Split-lock header bolts?
I will be installing new headers on my c5 next weekend and was wondering about these header bolts. I want a locking header bolt so I don't have to worry about it loosening and I've heard that stage 8's can be a PITA!
http://www.jegs.com/p/Percys/Percys-...81843/10002/-1
Also which size is correct for the ls1, is the 760-21008 the right one?
http://www.jegs.com/p/Percys/Percys-...81843/10002/-1
Also which size is correct for the ls1, is the 760-21008 the right one?
Melting Slicks
Joined: Sep 2006
Posts: 2,736
Likes: 7
From: Redding CA
I don't know the correct size bolt...those stage 8's or any locking bolt are very nice to have.
LS1's dont usually have issues with these backing out because the flange on the headers is usually pretty thick which is what you want.
Older cars had header flanges sometimes as small as 5/16's or even 1/4 inch. LS1's are 3/8's or larger is what you want.
LS1's dont usually have issues with these backing out because the flange on the headers is usually pretty thick which is what you want.
Older cars had header flanges sometimes as small as 5/16's or even 1/4 inch. LS1's are 3/8's or larger is what you want.
Thread Starter
Cruising
Joined: Jun 2007
Posts: 10
Likes: 0
Yea, I got a set of XS headers which have 7/16 flanges. I just want insurance against the bolts coming loose and I've never heard of the split lock design before and was wondering if anyone had any experience with them.
