Exhaust manifold bol... Stud?
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Teching In
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Exhaust manifold bol... Stud? Hello all,
It is common knowledge that the exhaust manifold-to-head bolts are prone to breaking. Has anyone considered using a stud and nut setup?
I have quite a bit of experience with VW and on their manifolds they use the same thread size and pitch for a stud, plus a copper-coated pinch nut that very rarely has problems with removal.. even after multiple hundreds of thousands of miles.
Any reason I shouldn't do this on my L92?
It is common knowledge that the exhaust manifold-to-head bolts are prone to breaking. Has anyone considered using a stud and nut setup?
I have quite a bit of experience with VW and on their manifolds they use the same thread size and pitch for a stud, plus a copper-coated pinch nut that very rarely has problems with removal.. even after multiple hundreds of thousands of miles.
Any reason I shouldn't do this on my L92?
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Teching In
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That's my question.. why bolts over studs? They are used in that application successfully on so many other vehicles.. yet the OEM bolts, presumably torqued correctly at the factory break on LS engines very often.
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I've put several ARP bolt kits on 2500 & 3500 trucks & breaking bolts became a thing of the past.
I'm not saying bolts are better than studs given they are the same material(I know they're not). On my car (W/ L92)......If I used studs on my headers, I would have to extract all the studs before I could remove the headers, That would be a PITA for little to no benefit over a good ARP header bolt.
If your using headers with good 3/8" 1 piece flanges, I bet new OEM bolts would work without issue, Me......I like good hardware!
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Andrew