Yes because you are gonna boost more and the head studs will stretch...........

 

It was suggested that to take full advantage of meth. injection, headstuds would need to be upgraded. Is this a necessity? I wanted to hear from some of the veterans on this subject. Thanks!!

 

You might find out that it is the luck of a coin toss in here becuase you will hear both sides. I would say always but I am just the type of person that would rather over do things than under.

 

im on stock studs with 26 psi daily driving 28 on race day no problem yet

 

The boost makes them stretch?

 

unless you r boosting 30+psi i think you r ok

 

The head bolts or studs can stretch from a detonation
condition caused by things like;length and severity of knocks
present,low octane fuel #,an overly lean a/f ratio and ignition
system malfunctions just to name a few. Of course an overboost
condition can contribute to the detonation as well and then lead
to the overall fastener failure.

Later guys

 

Dailing driving 30 Psi on meth stock studs over here..

 

A little off topic guys.. have someone a pic of the OEM head studs vs the normal ARP?
Thanks.

 

yup, it's detonation that's going to stretch the stock studs, not the boost. If you're detonation free, the next limit is going to be how much power you make. The pressure in the cylinder from "boost" is miniscule compared to the pressure from the power of "combustion" .

 

OEM studs are torque to yield, ARP isn't, so OEM ones use the stretch for clamping

 

Thanks for the info guys. I would also like to see a side by side pic of after market vs. arp headstuds. Anyone have pics?