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A15 Head Bolts
Just can't stay away
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2013/1/15 2:47
From Gold Coast Queensland, Australia
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I'm looking for a new set of head bolts for my A15. I live in australia and can't seem to find any. I snapped one tightening it yesterday. I used the tension settings for A15 but this motor has an A12 head and weaker bolts. I realised all too late. Am i better off getting A15 bolts and if so where from?

Posted on: 2013/1/30 6:53
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Re: A15 Head Bolts
No life (a.k.a. DattoMaster)
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does ARP make head bolts?

Posted on: 2013/1/30 6:59
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Re: A15 Head Bolts
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ARP does not sell head bolts

A15 uses the same bolts as later A12. Just make sure thet are the strong Cromoly V bolts, marked with 13 on the head.

Posted on: 2013/1/30 7:11
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Re: A15 Head Bolts
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Cheers. Looked at site and they do A14 head studs. I'm pretty sure they are the same. Now should I tension to A12 or A14 specs?

Posted on: 2013/1/30 7:14
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Re: A15 Head Bolts
No life (a.k.a. DattoMaster)
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A15 ARP HEAD STUD KIT, I'VE GOT SOME IN STOCK . PM ME IF INTERESTED

Posted on: 2013/1/30 7:28
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Re: A15 Head Bolts
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Use the tightening specs for the bolt you are using. Early A12 head bolts have "12" on the head of the bolt and are not as good as the A14/15. The A14/15 bolts have a "13" on the head. The "13" are better. The "13" bolts will accept 54 lb-ft where the "12" bolts only 42 or 43 lb-ft. [Check the torque spec for "T" bolts.]

If using the ARP studs, follow the directions. ARP gives different tightening specs depending on if the nut/bolt uses ARP lube or something like motor oil.

I re-use "13" style head bolts if they are in good condition.
Peter

Posted on: 2013/1/30 14:34

Edited by pjz on 2013/7/23 13:56:32
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Re: A15 Head Bolts
Just can't stay away
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Thanks all! Cheers for the offer Peter. I got on to some direct from NISSAN. They are second hand but did the job. Go the Dato!!

Posted on: 2013/2/11 0:26
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