[Roadsters] head bolts

jh.bahn at verizon.net jh.bahn at verizon.net
Thu Aug 1 07:53:54 MDT 2013


Do you heave head bolts (usual case) or head studs fastened with nuts?  If 
the head has been overly milled (that would usually case come piston slap 
and head or valve damage) you might want to try studs.
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

'Course 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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