Just an FYI: Breslin header bolts DO back out. I have at least two that I see that are away from the header. Let's see how easy they are to tighten....

 

You tightened them to torque spec and tightened down the allen center screw to have the splits lock in the head and they still backed out? First I heard of this....

 

I never had a problem with mine ever backing out in over a year

-Dustin-

 

Same here, and they were WELLLLLL worth the money considering how much easier they made the job. I used the bolts Jet-Hot provided first and it was a real PITA! I had 4 of the original (Jet-Hots) back out.........got the the breslins and have had 0 problems since.

 

You must've made a mistake. The background is sound on the concept so the execution is probably at fault.

The Breslins were a one-stop-torque for me.

 

ah, ive had one back out on me. the center piece fell out some time over a period of six months and i had the bolt back out on me (was sticking about half way out when i found it). i had torqued the bolts down properly and torqued the hell out of those center bolts with a tiny allen wrench and that one still got loose. other than that though, ive had no issues with my other bolts. just a rare occurrence, i'm sure.

 

mine have not backed out yet and its been a while, even the ones i did not lock b/c i couldnt get them hadnt backed out yet

its usually a rara occurence

 

So the Breslin's work by expanding their size in the (aluminum for us) head? I don't think I'd be very comfortable with that...

I've never tried anything other than the cheap ARP stainless bolts. They typically require one tightening after a heat cycle and are good to go from there. I've never had a back out. Not saying there's anything special about these bolts, me, or anything else. I've just had good luck with them.

 

I have never had a problem on any of my headers ever or any of the cars that I have done. Just recheck them once and that was it. Most of the time some do not even need tightening.

I use the ARP 5/16 of an inch head by 3/8 x 16 in stainless and just love them every one never hits a primary with the head being that small.

 

No this is not a rare occurance because i experienced the same thing. I actually had one back out on me and strip my heads. Thats the reason why I am rebuilding my motor as we speak. Ive had nothing but problems with header leaks since I installed my SLP shorty headers. The bolts that came with it ALWAYS came loose. I tryed the stage 8 locking bolts, they weren't to much better but some improvement. So then i tryed the Breslin bolts and they were better until this happened. Although they did back out I probably will still use them when installing my Pacesetter LT's. I think its mainly the shorties that have the header leak problems.

 

ive heard ppl having leaking problems with all of SLP headers from their shortied ot their LTs

 

I don't see how the BOLTS backing out could have even POSSIBLY caused a stripped head. It worked itself out AND stripped the head at the same time without you touching it??? How is this physicaly possible?

 

Hmm is that the reputation they have for all their headers? You think SLP makes pretty quality products they would address that problem. Cause god, header leaks are a PITA

 

Well thats the question I ask. How could it possibly pull a bolt through the threads of a head? Doesn't seem really possible because that would take a LOT of pressure or power to do that. That bolt ALWAYS came loose no matter what bolt i used. It was the passenger side, last bolt. The back of the motor. Before i went on vacation i put the new bolts in. On the way home i get a terrible header leak. Got home, checked it out, and the bolt had came loose. I try tightening the bolt back up. It starts to go in then just suddenly loosens. It is stripped. I would blame myself because logically how could the bolt be pulled out? But thats the only thing that could have happened.

 

All better now. Very easy to retighten. I loosened the center allen screw a bit more then took my closed wrench 3/16 - fortunately it slipped right over without hitting the primary - and tightened it down. I noticed when I tightened the bolt that it felt like I stripped it but I checked Breslin.com and it says that all you do is hand-tighten then use the allen wrench to tighten the center screw. I did that and it cinched it all up. Only one was out BTW. These are much better than the ARPs that I had on before. At least four of those backed out and I lost two of the bolts altogether.