Stupid question I know, but for the life of me I can't remember how long of a bolt I need.....3/4" or 1"? Pretty much the last thing I have to get....

Thanks

 

Stage 8 locking bolts 1" cause 3/4" bolts tend to back out

 

I know you just asked what size and im sure you can use either 3/4 or the 1 inch, i would get these they are the ****. I never had to go back and re tighten them ever
3/4
http://www.ws6project.com/user_stor/...0cd7c669d38f11

1 inch
http://www.ws6project.com/user_stor/...0cd7c669d38f11

 

I have the 3/4 inch stage 8's and they dont back out. thats what makes them worth the money

 

1" ARP stainless 12 point. no problems

 

True. depends on what headers he's running 3/4'' might not be long enough.

 

I have the 1" Breslin "split lock" stainless which has a + cut in the end of the bolt and is drilled through the middle with a set screw which when tightened causes the + to expand, not allowing the bolt to back out.

 

ARP 400-1209 is the only thing we use

 

I got stage 8 1 inch locking header bolts...2 and a half years and going, not a problem yet...

 

Always go with a 1" bolt. The threads in the head are plenty deep enough for whatever thickness flange your headers have. More thread engagement = more bite = more resistance to backing out.

 

^^^ Agreed.
However w/ my Hooker LT's I use ARP 3/8"X.75" bolts. After tightening twice with new gaskets I've never had a problem.

 

I used stainless 1" Breslin Split Locks, which I believe are now a Percy's product. They won some engineering awards when they came out, and are probably the most innovative locking bolt design.

 

I noticed those, but I'm not a fan of expanding a bolt from the inside out on an aluminum head......I'm just gonna order the Stage 8's unless Larry has them in stock

 

When I was deciding on a bolt, it seemed like a lot of people thought the Stage 8 bolts were a PITA. The consensus seemed to be that the Breslins were the best locking bolt, but the guy who started the company died, and the bolt became almost impossible to find. I believe Percy's picked up the design a couple of years ago. If I had it to do over, I'm not sure whether I would use a locking bolt. I would consider going with the 1" stainless ARP bolts.