header flange bolts galling

[Watazz]

Has anyone else had a problem with this I usually loosen up my bolts every few months or so to adjust the flanges but everytime I do the bolts are galled and I end up having to snap them off. Im using 1/2 X 3" stainless bolts. Pacesetter headers by the way. Im going to try a few washers on the bolt and nut side to give it some more thread.

[Watazz]

Re: header flange bolts galling

I take it im all alone on this one :mad:

[ssms5411]

Re: header flange bolts galling

I have the stock header bolts and they have held up fine, might be your weather is causing them to fail, or over tq'ing them.

[Watazz]

Re: header flange bolts galling

Could be over doing it I suppose. I also put some c5a on the bolts so far so good

[zlexiss]

Re: header flange bolts galling

Why are you messing with them so often?

Also, stainless is the worst for galling. Maybe a coated grade 8 bolt would reduce galling and be about 40% stronger than most stainless alloys, reducing breakage.

[Watazz]

Re: header flange bolts galling

weather changes alot around here. Causes for adjustment more often. Also thought I had a leak however it ended up being my flywheel.

[IceHammer]

Re: header flange bolts galling

Youre going to get much much more galling if youre using the same material bolt and header. Get a different grade of stainless bolt, coated bolts, or get washers of a different material than the header and the bolts. Also there are anti-galling compounds available, but check the temperature ratings, they may not be suitable for use on a header.

[Watazz]

Re: header flange bolts galling

Youre going to get much much more galling if youre using the same material bolt and header. Get a different grade of stainless bolt, coated bolts, or get washers of a different material than the header and the bolts. Also there are anti-galling compounds available, but check the temperature ratings, they may not be suitable for use on a header.

I intalled the new stainless bolts with a different washer and c5a which is government grade high temp