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Topic Review (Newest First)
12-09-2012 01:50 AM
Originally Posted by iminhell View Post
O-rings aren't copper ...
In a srt4 motor that I almost picked up had copper o-ring.

Yeah my buddies uses cometic in all of his v8's he builds. I also used one in my srt4 with arp head studs. Worked great.
12-08-2012 10:36 PM
1turbofocus I would never use a copper head gasket on anything , Yes o-rings are a pain but back in the day a necessary have to especially with Nitrous

Neither are needed on any of the Focus Engines

12-08-2012 09:11 PM
SuperStockAMX I used to use piano wire of the appropriate size on my big-block Mopar. A biatch to form around the receiver groove, but it won't leak.
I'm using Cometic on my V-8 race car. This is an application where the time tested way around really high compression (13.2:1+) was to install an extra head bolt. Cometic does the job without this hassle.
12-08-2012 08:26 PM
iminhell O-rings aren't copper ...
12-08-2012 08:22 PM
Originally Posted by SuperStockAMX View Post
What does o-ringing have to do with street or race? Use copper head gaskets annealed properly and hylomar around the water jackets.

For copper o-ring as a head gasket, the machine shop will cut the block to allow for the copper o-ring to be insterded but when it's cold out copper will leak. Also it can work great or give you issues.
The head gasket that I'm using is a mls cometic head gasket.

As of right now the CP pistons and head gasket will take about a month to make. This is the busy time for both company's.
12-08-2012 07:30 PM
upstater Make sure to update this thread with the results.
12-08-2012 07:00 PM
SuperStockAMX What does o-ringing have to do with street or race? Use copper head gaskets annealed properly and hylomar around the water jackets.
12-06-2012 03:51 PM
turbosvtfocus04 Thanks. But if I go o-ring for the head. I can't daily drive the car. That's strictly only for racing. I like to drive it on the street too.
12-05-2012 11:04 AM
BigRed03 depending on how far north youre going, o-rings may be in order for the head. Thats still uncharted territory.

Good Luck! Can't wait to see the numbers.

What to look forward to:
12-05-2012 08:26 AM
drostedrummer89 The block is strong, I dont know if I've ever heard of any one cracking the block without the rods being the cause. I think 600whp has been done, if I'm not mistaken. Thats like 700 at the crank.


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