bwilde86

iTrader: (5)

Anyway to cure this problem? I know Texas speed has some locking bolts. Do these work? I've retightened them and they backed out again. Have a ws6 with pacesetter coated headers...any suggestion will be appreciated

disc0monkey

iTrader: (10)

how many times have you had to do this? It is normal up to three times on other engines I had headers on.

94'BLKBRD

iTrader: (76)

Loctite?

disc0monkey

iTrader: (10)

Don't do that

Troy5061

iTrader: (19)

Lock washers...

777

iTrader: (21)

ARP header studs are an option.

s346k

iTrader: (4)

tighten the bolts, heat cycle the engine and check them again.

when i installed pacesetters on my car i tightened them upon install and then again after driving around town with open headers and that was it. i never had another problem out of them. they were on for a few years and 35k miles before i sold it.

edit: i used the stock manifold gaskets and bolts that came on the car. no additions of any sort.

bwilde86

iTrader: (5)

I tightened twice and think its loose again. Just didn't know if maybe the bolts stretched or something to that effect

01ssreda4

iTrader: (96)

Percy's split lock bolts. Available at Summit.

disc0monkey

iTrader: (10)

Are the threads clean? Any anti seize ?

bwilde86

iTrader: (5)

Threads looked clean during install...no I didn't use anti seize unfortunately

Suzaku

iTrader: (3)

Lock washes are the best choice.

S10xGN

iTrader: (11)

Wow, guess I've been the lucky one. Stock bolts and GM gaskets have never backed out for me. Did you used a torque wrench to install them?

Sales1@Texas-speed

This is definitely a situation I have not encountered. Ive never had any issues with the bolts backing out after Ive heat cycled everything and re-tightened the hardware. Your best bet would be to try a new set of bolts or perhaps the stage 8 locking header bolt kit.
Here is a link to the stage 8 kit - http://www.texas-speed.com/p-427-sta...bolts-hex.aspx

disc0monkey

iTrader: (10)

Does anti seize actually help in this situation?

Orange Juice

iTrader: (3)

I have these and they are nothing but a PITA. Had to go back and locktight the set screws to stop them from backing out.
I know of a couple of others that had the same problem.

JimMueller

iTrader: (9)

Stage 8 locking header bolts here. They are a PITA to add/remove the c-clips though if the motor is in the car.

OldCobraGuy

iTrader: (2)

It helps when you have to remove them. It can be the difference from a simple bolt removal to having to pull the head and send it out to be drilled and Helicoiled. I put antiseize on every bolt that goes into aluminum.

OldCobraGuy

iTrader: (2)

I agree Aaron. I've never had an issue either if I tighten them two or three times after heat cycling them. On any brand.

01ssreda4

iTrader: (96)

I like mine. I admit tightening the allen head is a little awkward at first but after doing a few it gets pretty easy.