manifold bolts/studs grade?
05-01-2012, 04:47 AM
#1
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manifold bolts/studs grade?
While I have the head off I'm going to replace the exhaust manifold bolts. Either stud or bolts. What grade should they be?
Thanks,
Thanks,
05-01-2012, 07:46 AM
#2
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Join Date: May 2006
Location: York, PA
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I used stainless steel socket head cap screws for mine. I'd use grade 8 in regular steel hardware.
I thought the picture would be bigger. Its kinda hard to see the cap screws. I think you can make the pic bigger in my gallery.
I thought the picture would be bigger. Its kinda hard to see the cap screws. I think you can make the pic bigger in my gallery.
05-02-2012, 04:34 AM
#3
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Thread Starter
I see the advantage of SS not rusting into the head or manifold. How are they holding up?
I guess SS is strong enough to handle the heat/cool cycles and the expansion/contraction involved?
I guess SS is strong enough to handle the heat/cool cycles and the expansion/contraction involved?
05-02-2012, 09:43 AM
#4
Registered User
Material Coefficient of linear expansion (10-6 in/in)
Cast Iron Gray 6.0
Steel 7.3
Steel Stainless Austenitic (304) 9.6
Steel Stainless Austenitic (310) 8.0
Steel Stainless Austenitic (316) 8.9
Steel Stainless Ferritic (410) 5.5
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