SCE Copper head gaskets on 8 bolt heads
- Thread starter Ed Valvo
- Start date
sce
so far I have the stage II ones with the extra bolt holes on a 109 with 8445 heads and have not had problems. Only got about 1000 miles on the motor though. No cooling issues as I have heard people have with compathetics
so far I have the stage II ones with the extra bolt holes on a 109 with 8445 heads and have not had problems. Only got about 1000 miles on the motor though. No cooling issues as I have heard people have with compathetics
so far I have the stage II ones with the extra bolt holes on a 109 with 8445 heads and have not had problems. Only got about 1000 miles on the motor though. No cooling issues as I have heard people have with compathetics
Could you elaborate some more on this subject. Did you take any extra steps, type of sealant, do you need to re-torque them periodically, how much boost has the motor seem, which part number/brand, etc,etc
Thanks
Billy T.
gnxtc2@aol.com
I am using them ,I don't know if like them too much , I had my motor build by Weber Racing , they build me nice motor but right away I was getting coolant in the oil , I know they put extra sealer around coolant holes but I still had that nasty problem , did the retorque and it got better but did not stop 100% I am still loosing coolant after hard driving however it dose not go in the oil , I don't think because oil is clean and the level is ok , I have no external leaks so I must be burning it I guess , before I used FellPro HG and I had no problems , now with SCE titans I have a problem .
I used the old SCE coppers with a double o-ring setup. One ring in block with a stainless wire pressed in it and a wider receiver groove in the head. The copper is pressed into the receiver by the stainless wire. Worked very well at 25+psi for nearly 4 years. I used Hylomar on the gasket surfaces and torqued down with ARP 12 point bolts. I actually never retorqued but probably should have. Engine used very little coolant.
750H.P.V6
Brutal 6 Racing
- Joined
- Sep 4, 2001
I have the older SCE gaskets on my stock block motor. I made sure to silicone around the coolant holes and the oil drainback from the head to block also. They are installed with an o-ring in the head and receiver groove in the block. I have run them for a couple of years and maybe 1500 miles. I had one instance where they leaked some combustion into the cooling jacket at 30 psi but once I re-torque them I'm sure they'll be fine. BTW, I torque the head studs to 80 ft lbs with ARP moly lube on the threads and under the nut.
Neal
Neal
J-B Racing
Forced Induction
- Joined
- Sep 16, 2003
3 years on my 109 Block 8 Bolt. O-Rings on the Heads...30 + Boost and still running.
.072`` Thick...............Why didn`t I use these sooner....
.072`` Thick...............Why didn`t I use these sooner....
I went to 85 ft lbs with the 12 pt bolts. I never retorqued back then but i would now if i still ran them.
J-B Racing
Forced Induction
- Joined
- Sep 16, 2003
SCE Instructions recommends it. I still never re-torqued the heads..
It depends on which copper gasket you went with.
Go to page 3, the head gaskets are listed on the bottom
http://www.scegaskets.com/pdf/SCE Catalog.pdf
Billy T.
gnxtc2@aol.com
