Head Gaskets

[Tee]

Did a search and couldn't find anything on this.
What are the hazards with using a thicker head gasket to lower compression?
And are copper head gaskets good with blowers?
Thanks --------- Tee

[Blown 472]

If you increase the thickness you are going to get away from the correct quench area which I believe is 35 to 40 thou, thus bringing detonation into play, the copper gaskets are good but from what I have heard water leaks are a pain, there is some stuff called halon in a tube that stays flexible and seals leaks, I might be off on some of this stuff so any one else care to jump as I here the horn for the bus.

[Unchained]

I just seen an ad in drag boat review for rubber coated copper head gaskets.
www.flatoutgaskets.com (http://www.flatoutgaskets.com)

[Cheyenne 572]

I've used Cooper head gasket's with no problem's on the lake or racing.Just my .02 cent's.
Cheyenne 572

[Ian]

Cheyenne 572 is luckier than most, because cooper head gaskets area a b@*%ch to seal, infact my head guy even has a hell of a time getting them to seal. I recently had a valve job and it took me three tries to get the head gaskets to seal. Everytime I got the motor back together it ran fine on the trailer hooked up to the hose, but as soon as I got going on the river water would start dripping out of the front of the motor (v-drive side). Good luck

[superdave013]

Ian:
Cheyenne 572 is luckier than most, because cooper head gaskets area a b@*%ch to seal, infact my head guy even has a hell of a time getting them to seal. I recently had a valve job and it took me three tries to get the head gaskets to seal. Everytime I got the motor back together it ran fine on the trailer hooked up to the hose, but as soon as I got going on the river water would start dripping out of the front of the motor (v-drive side). Good luck Try the gaskets that Clay Smit sells. Much better then copper.

[Heatseeker]

Blown 472:
there is some stuff called halon in a tube that stays flexible and seals leaks, I think you're talking about hylomar. I saw it in the Scoggin-Dickey catalog. And I just happened to find a couple tubes at work. It's supposed to be the stuff that works with copper head gaskets.

[Unchained]

Don't waste your time with Hylomar.
Been there, Done that, had water leaks, extra tear downs. Bad idea.
Use silicone around the water transfer ports. It works great. Clean off with a wire brush on an air grinder when you need to remove the heads.

[Infomaniac]

Been there with Hylomar also. It did not seal up for me. Spray and tube both.
SuperDave is correct. The Detroit gaskets sold by Clay Smith worked good for me.

[Jrocket]

I was having gasket problems on my little turbo motor.I tried copper and they helped a little but didnt fix my problem.I never got a real good seal from them due to my combustion chamber problems.I would try what SuperDave recommended. wink

[058]

The trick to getting copper gaskets to seal is to run K-W Block seal as per the instructions on the can. Circulate mixture from a bucket and a return line until the engine is up to app. 200-210 deg-F then drain and let dry for 24 hours. Moroso has a product thats close or the same as K-W.

[HeavyHitter]

There's a new copper gasket with print-o-seal around all the water passages. The biggest secret to helping copper gaskets to seal water is receiver groove the block so that the wire on the head has somewhere to compress the copper into.

[058]

HeavyHitter:
There's a new copper gasket with print-o-seal around all the water passages. The biggest secret to helping copper gaskets to seal water is receiver groove the block so that the wire on the head has somewhere to compress the copper into. HeavyHitter, Who makes those gaskets?

[arent4u]

If you are having problems sealing up your water on your blown or unblown engine, then you need to give Paul Pfaff Racing Engines a call. They have a head gasket called Cometic. Have seen it run on a 1250hp blown engine with no worries. (714) 894-7573

[UBFJ #454]

Currently running Cometics on our 565 n2o 1,500+ Hp race engine and will continue to do so when we step her up to 3,000 Hp.

[565edge]

BEAR_454PE:
Currently running Cometics on our 565 n2o 1,500+ Hp race engine and will continue to do so when we step her up to 3,000 Hp. I run cometic also with a 565" 15-1 comp chevy,shafiroff racing said they are the hot ticket,i havent had any problems.3,000 hp,holy shit!

[UBFJ #454]

565 -
Holy S is why we're building a capsule boat ... won't go above 1,500 Hp in an open boat and, that's pushing it.

[eliminator777]

I've been useing copper head gaskets for ever not a problem o-ring block a little silicone around water holes it works oh yes you need a good deck and head surfaces.

[Fiat48]

Every time we have had a water leakage problem, it has been around the bolt threads. The water crawls right up the stud and drips off into the head. If we put some silicone around the water holes and the stud threads, never had a problem. Ultra Blue silicone seems to work the best. And it doesn't mind alcohol.

[HeavyHitter]

058, I need to find out again. A rep told me the company but I've forgotten. I'll let you know as soon as I fnd out.

[Rexone]

058:
HeavyHitter:
There's a new copper gasket with print-o-seal around all the water passages. The biggest secret to helping copper gaskets to seal water is receiver groove the block so that the wire on the head has somewhere to compress the copper into. HeavyHitter, Who makes those gaskets? SCE make's em. They'll be in our product line shortly. I've already seen the samples and they look great. Water leakage has for years been the big drawback with copper and this should solve it "easily" without farting around with a bunch of sealer, silicone, etc.

[058]

HeavyHitter:
058, I need to find out again. A rep told me the company but I've forgotten. I'll let you know as soon as I fnd out. Thanks HH.
[ December 24, 2002, 09:44 AM: Message edited by: 058 ]

[058]

Rexone:
058:
HeavyHitter:
There's a new copper gasket with print-o-seal around all the water passages. The biggest secret to helping copper gaskets to seal water is receiver groove the block so that the wire on the head has somewhere to compress the copper into. HeavyHitter, Who makes those gaskets? SCE make's em. They'll be in our product line shortly. I've already seen the samples and they look great. Water leakage has for years been the big drawback with copper and this should solve it "easily" without farting around with a bunch of sealer, silicone, etc. Thanks Mike, Will they be listed in your new catalog? Please put me on your mailing list when you get the catalog out, Bob

[dossangers]

superdave013:
Ian:
Cheyenne 572 is luckier than most, because cooper head gaskets area a b@*%ch to seal, infact my head guy even has a hell of a time getting them to seal. I recently had a valve job and it took me three tries to get the head gaskets to seal. Everytime I got the motor back together it ran fine on the trailer hooked up to the hose, but as soon as I got going on the river water would start dripping out of the front of the motor (v-drive side). Good luck Try the gaskets that Clay Smit sells. Much better then copper. DITTO THAT o ring with clay smith gaskets BULLET PROOF

[superdave013]

dossangers:
superdave013:
Ian:
Cheyenne 572 is luckier than most, because cooper head gaskets area a b@*%ch to seal, infact my head guy even has a hell of a time getting them to seal. I recently had a valve job and it took me three tries to get the head gaskets to seal. Everytime I got the motor back together it ran fine on the trailer hooked up to the hose, but as soon as I got going on the river water would start dripping out of the front of the motor (v-drive side). Good luck Try the gaskets that Clay Smit sells. Much better then copper. DITTO THAT o ring with clay smith gaskets BULLET PROOF Yep, that's how mines done.