Couple questions about ARP Fasteners
06-21-2007, 07:18 PM
#1
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Couple questions about ARP Fasteners In the distant future I'd like to have my entire engine to be held together with ARP bolts & studs.
I'd like to do everything...from the critical stuff like rod bolts and head studs to the minimal like the tb and coil brackets
The main purpose would obviously be function but as well as some form, they make a motor look fukin' serious!
With that being said...
What are the specific advantages of the stainless version vs. black oxide...effects of heat cycling, strength, etc?
Could/is it common for the black oxide bolts to rust at all, even surface rust?
I'd like to do everything...from the critical stuff like rod bolts and head studs to the minimal like the tb and coil brackets
The main purpose would obviously be function but as well as some form, they make a motor look fukin' serious!
With that being said...
What are the specific advantages of the stainless version vs. black oxide...effects of heat cycling, strength, etc?
Could/is it common for the black oxide bolts to rust at all, even surface rust?
06-21-2007, 10:32 PM
#2
I've got many of the stainless 12pt bolts on my engine. They get real expensive when buying the generic size/length 5 packs.
The black oxide WILL rust where the stainless won't.
The difference's in strength:
8740 Chrome moly - 160,000 psi yield strength, 180,000 psi tensile strength
Stainless 300 - 140,000 psi yield strength, 170,000 psi tensile strength
The black oxide WILL rust where the stainless won't.
The difference's in strength:
8740 Chrome moly - 160,000 psi yield strength, 180,000 psi tensile strength
Stainless 300 - 140,000 psi yield strength, 170,000 psi tensile strength
