ARP Exhaust Header Bolts
#1
ARP Exhaust Header Bolts
So far I'm really liking these 6 point, 8mm bolts. The one's that SLP supplied were 12 point? Well those were a pain to install and remove due to the design of the headers. And one bolt that I had purchased for the really tight #1 cylinder pipe, took me almost four hours to remove and bent up my valve cover in the process of removing it.
The ARP bolts went in smoothly, and the design of the 6 point, 8mm bolt head made it really easy for installation. They do come with with washers for every bolt in the package and I did have to use one or two but not all of them for the hole variations on the headers themselves.
The ARP bolts went in smoothly, and the design of the 6 point, 8mm bolt head made it really easy for installation. They do come with with washers for every bolt in the package and I did have to use one or two but not all of them for the hole variations on the headers themselves.
#2
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Join Date: Aug 2013
Location: Milltown, NJ
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Car: 86 iroc, 02 v6 camaro
Engine: 350 HSR, 3800 V6
Transmission: T56, WCT5
Axle/Gears: 9in 4.11 posi, 3.23 LSD
Re: ARP Exhaust Header Bolts
part numbers? what SLP headers do you have? the ones with the long standoffs?
#4
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Car: 86 iroc, 02 v6 camaro
Engine: 350 HSR, 3800 V6
Transmission: T56, WCT5
Axle/Gears: 9in 4.11 posi, 3.23 LSD
Re: ARP Exhaust Header Bolts
what are the part numbers for the ARP hardware. i have mine rigged for now since i bought them without bolts i would like to do the ARP hardware, sounds like they fit very nicely in the tight spaces.
#5
Re: ARP Exhaust Header Bolts
Here are three pictures. One is of the ARP bolt package with the part number, the picture with the bolt using a washer is where I removed this extension piece SLP welded onto the header which my car has no use for. The one without the washer is the #1 cylinder exhaust port where it was a pain in the butt to remove the old bolt but easier with the new.
Keep in mind, I have the original stock factory heads on my car.
Keep in mind, I have the original stock factory heads on my car.
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#8
Re: ARP Exhaust Header Bolts
Talk about a nightmare removing the old bolts. Driver's side is complete and also found out I had a couple of loose spark plugs. I just worked on the right side and also discovered some loose spark plugs. I didn't finish the last two on the #8 pipe. I'll try to finish up tomorrow before it gets too hot out and tighten up the rest of the spark plugs. The sweat and pain will be worth it after it's all done.
#9
Re: ARP Exhaust Header Bolts
Finished with the bolt installation. I hate the numbers 6&8. It was a pain to finish the last bolts and tighten up the spark plugs. I did ruin the #6 spark plug wire and now have to order a new one. With that being said, onto the next project.
#10
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Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: ARP Exhaust Header Bolts
The SLP bolts I have uses a 12pt 5/16 or 3/8s head but I like to use 1" long 12pt bolts and put a dab of anti-seize on them.
Have you measured your primary tubes? By looking at the cast flanges you most likely have the smaller 1 5/8s headers. (sucks but I ordered 1 3/4 headers back in the day but got the smaller ones. I have yet to find a 2 1/2 inch Y pipe other than the few prototypes) You will like them tho.
Obviously the standoffs are for the factory bolts.
I have modified a few wrenches for the header bolts and one for the plugs. I have the headers down to an hr or so for removal or install.
Have you measured your primary tubes? By looking at the cast flanges you most likely have the smaller 1 5/8s headers. (sucks but I ordered 1 3/4 headers back in the day but got the smaller ones. I have yet to find a 2 1/2 inch Y pipe other than the few prototypes) You will like them tho.
Obviously the standoffs are for the factory bolts.
I have modified a few wrenches for the header bolts and one for the plugs. I have the headers down to an hr or so for removal or install.
#12
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Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: ARP Exhaust Header Bolts
I bought my 1st set (and rest of the kit) back in 91 or 92 and all the sets i've seen/had though the yrs have the smaller tubes with the cast flanges. I was hoping to find a set of large tubes with the cast flanges for my collection
#13
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Car: 89 IROC
Engine: 305 TPI / ZZ4 cam
Transmission: Stage 2 700R4, LS1 driveshaft
Axle/Gears: Strange 3.42 w/ Auburn
Re: ARP Exhaust Header Bolts
You'll need three diff. length bolts....I did. Measure EVERYTHING.
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