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arp head blots?

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Old Dec 9, 2010 | 08:23 PM
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Default arp head blots?

recently bought some arp heablots off a guy, and iv been loking around and all the ones i see are black, yet mine seem to be more of a normal metal color.


i dont know what the stock ones look like but i was wondering if there is a way to tell if they are ARP or not
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Old Dec 9, 2010 | 08:45 PM
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I'm no expert but if i recall right they should say ARP on the top. sounds kinda sketchy, do you have any pictures of it?
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Old Dec 10, 2010 | 12:28 AM
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Hmm ..sounds shady every arp I've ever gotten were black
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Old Dec 10, 2010 | 07:32 AM
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Mine say ARP on the bolt heads and have black washers.
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Old Dec 10, 2010 | 08:33 AM
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These are the stock ones:



These are ARP:

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Old Dec 10, 2010 | 10:56 AM
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Originally Posted by KCS
These are the stock ones:

they look just like these... they even have that orange stuff around the threads.

i dont care if they are ARP or not really, i just need some that work... and from what iv read the stock ones are TTY, so does that orange stuff mean that they were used?
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Old Dec 10, 2010 | 11:03 AM
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No. The "orange stuff" is thread locker. That would come off inside the hole if they were used. Make sure you have the right ones for what you are doing. Those pictured are for the LS2 and or 04 and up engines. Meaning the "long bolts" are all one length. If yours ONLY have 2 of the same length bolt per head and the rest are really really long, then you need the other style. Make sure they match accordingly.
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Old Dec 10, 2010 | 12:02 PM
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my car is a 99 ls1


all the bolts are the same stock length.


thanks for the help guys.
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Old Dec 10, 2010 | 12:04 PM
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No. If you have a 99 and its the stock engine, all your headbolts are not the same length. You will have 2 head bolts per side that are shorter. The one on the front and rear of the head. So 4 total. Unless you have an LS2, a late model LS1/6 or a late model Iron block in it, they are 2 diff lengths. That is the only explanation. GM did not start this all one length design until ~04

If I read what you wrote again, it may mean that the bolts you got match up to the bolts that came out of your engine? If that is so, then just regard my prior paragraph for information only.
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Old Dec 10, 2010 | 01:01 PM
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Hope you didn't pay retail ARP price for ~$40 vatozone bolts
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Old Dec 10, 2010 | 04:13 PM
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he threw them in with the cam i bought.


ill look at the bolts again and make sure that there are 4 that are slightly shorter.
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