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Looking for LS1 header bolts or studs?

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Old Oct 12, 2009 | 09:49 PM
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Ksths2's Avatar
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Default Looking for LS1 header bolts or studs?

Getting close to installing a new set of heads and don't want to reuse the stock rounded off rusty hex bolts in my heads.

What should i get, bolts or studs and steel or stainless and where?
I'm having a hell of a time finding regular hex bolts for LS engines...... they wouldn't happen to be the same as the old chevy stuff would they? i don't think they are since a 10mm hex isn't the old size........
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Old Oct 13, 2009 | 07:24 AM
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The Percys spilt locks are great. I have used the Stage8 with the locking tabs but they rusted in short order. Some guys have not had the Stage8's rust but I am 1 mile from the ocean and the car stays outside and they rusted. The Percy's have been on for a while now in the same conditions and still look great. I like the locking design of the Percys better as well.

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Old Oct 13, 2009 | 11:18 AM
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Take your pick.



These are all 5 per pack


Chromemoly Steel, Black
ARP 671-1002, 12pt
ARP 661-1002, hex

Stainless Steel 300
ARP 771-1002, 12pt
ARP 761-1002, hex
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Old Oct 13, 2009 | 08:59 PM
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awesome, thanks guys!
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Old Apr 25, 2012 | 11:04 AM
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Hate to dig up such an old thread but i can't find these bolts. Are they still being made?
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