Quote:
Originally Posted by steve25
First off why did the motor over heat, from a failed head gasket?
New bolt wise you need a ARP kit 190-3607 , this kit can also be had from Jim Butler performance.
Note that I am assuming you have iron D port heads which this kit is for.
For any head bolt or stud to clamp the head gasket as needed the head bolt threads must be clean enough to allow the bolts to thread in easily by lite finger strength.
If you have to fight to get them in and bottomed out you will never get a accurate torque setting on them.
To get this done you need to buy a 1/2 course bottom tap.
These have no taper and will get to the bottom of the hole to clean them out.
With whatever bolts you use they need to stick out thru the bottom of the head with a gasket in place by 3/4 to grab enough threads to do there job.
The ARPs come with there own lube and be sure to use some under the head of the bolt where it contacts the head or the head washer if you bolt pick uses such.
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The thread pitch is 1/2-13. ARP recommends using a cleaning tap verses a bottoming tap, as the cleaning tap removes no metal.