Tim:
I have been using 60 ft/lbs on my 1147s with ARP studs/nuts and a Payen
gasket. I pull to 60 with 3 pulls of 20, 40, then 60. I let the head sit
overnight (cold) then retorque to 60 again. Since following this process I
have had no issues with head gaskets.
The ARP numbers for the studs are:
Head Stud - AJ 4.250-1SFB
Nut - AJN 12-1
Washer - AJW 750N
They can be ordered from Summit Racing along with the 10 stud 1500/1296 kit.
Robert MacKenzie
-----Original Message-----
From: fot-bounces@autox.team.net [mailto:fot-bounces@autox.team.net] On
Behalf Of Tim Pettenati
Sent: Saturday, April 13, 2013 10:41 AM
To: fot@autox.team.net
Subject: [Fot] Spitfire head torque
Checking on what folks are using for torque spec on head nuts?
1147cc
Spitfire with studs upgraded to 7/16" ARP and Payen gasket.
Also if anyone
knows what the ARP partnumber is for the 7/16" studs.
I'm guessing they are
the same as the GT6/TR6 kit but would like to know for sure.
Thanks,
Tim
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