I've bought a set of genuine ARP studs. When I screw the bolts in the block, the threaded section is so long that they don't fully go "home". Should I leave them like this or should I shorten the UNC bit a couple of mm?
I personally would like to shorten them.
ARP head studs
- Vegard
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- 998 Cooper
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Re: ARP head studs
Have you oiled the tread? Might be hydrolicing? And presuming there's no crap in the bottom of the hole? Don't think it would bother me them being a bit proud, but you could shorten them a bit if it makes you feel better
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Re: ARP head studs
Run a plug tap down the threads in the block and tap them to the bottom of the holes . 

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Re: ARP head studs
Ha251 ENG wrote:Run a plug tap down the threads in the block and tap them to the bottom of the holes .
- Spider
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Re: ARP head studs
Wow, the threads must be pretty long? Most blocks I've found the threads in the deck about 20 mm deep, but this reduces if it's been decked a few times. Yeah, I like to get all my thread in too
and on the studs as well.
Curious one.

Curious one.