[Roadsters] head bolts

jh.bahn at verizon.net jh.bahn at verizon.net
Thu Aug 1 07:42:10 MDT 2013


Do you have head bolts (usually the case) or head studs?   If the head has 
been severely shaved, the latter may work.
Head Stud    ARP        AP5.000        7/16b
 dia. 5 or 5-1/4 in. long; 
coarse thread for block and fine thread for nut
                     ARP        AP5.250
Nut               ARP        10-APN12-1
Washer        ARP        10-APN1316N

ARP also  makes head bolts  http://www.arp-bolts.com/



-----Original Message----- 
From: jamie tousignant
Sent: Thursday, August 01, 2013 2:30 AM
To: datsun-roadsters at autox.team.net
Subject: [Roadsters] head bolts

hey anyone have experience with head bolts and washers  to take up the
difference in a head?after being surfaced
i have a 2litre that has compression loss after less than 1200 miles on it
since rebuild  of  and notice the builder used washers
under the head bolt nuts it was  5 on one and 4 on another  down to 2 in the
middle  which i believe would cause the  pressure to be different
when being tightened  ? has anyone had their studs threaded longer to remove
the need to do the washer trick?
i know you can purchase shims for the towers to take up the slack if needed
but  am struggling to work out a solution
for this problem
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