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
- 1275 Cooper S
- Posts: 2042
- Joined: Mon Jun 28, 2010 1:33 pm
- Location: Norway
- Contact:
-
- 998 Cooper
- Posts: 371
- Joined: Fri Feb 11, 2011 8:10 am
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
-
- 1275 Cooper S
- Posts: 1671
- Joined: Sun Jun 27, 2010 5:26 pm
- Location: Warwickshire
- Been thanked: 6 times
Re: ARP head studs
Run a plug tap down the threads in the block and tap them to the bottom of the holes . 

-
- 998 Cooper
- Posts: 371
- Joined: Fri Feb 11, 2011 8:10 am
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
- 1275 Cooper S
- Posts: 4858
- Joined: Mon May 07, 2012 6:10 am
- Location: Big Red, Australia
- Has thanked: 196 times
- Been thanked: 75 times
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.