If I have a spare $10k sitting around, I'd rather have an alum head...
A lot of the "tooling" might cross over to 2.2L/2.5L or 2.0/2.4L gaskets they already make. Other apps they make have ~88-89 mm bore size too.
I'll still call them.
Lou
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| Can Copper Replace Steel ? https://slantsix.org/forum/viewtopic.php?t=30896 |
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| Author: | Greg Ondayko [ Wed Sep 03, 2008 12:59 pm ] |
| Post subject: | Can Copper Replace Steel ? |
I had a conversation at work last night with a gentleman who works for a copper company here in the 'burgh. His company has a division that makes Head gaskets (copper) and Connecting rods(aluminum). Anyway I was curious to see if I were to have the Steel shim Head gasket replicated in copper would that be of interest to folks on the forum?? I would shoot for the same compressed thickness. Please share your Thoughts and What is the correct compressed thickness of the Original steel shim gasket? I have no Idea of what price would be? So Share what you would be willing to pay for such a gasket. Greg |
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| Author: | Shaker223 [ Wed Sep 03, 2008 1:23 pm ] |
| Post subject: | |
Cox Brothers offered a .030" and a .040". Around $100. Tom |
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| Author: | Dart270 [ Wed Sep 03, 2008 1:32 pm ] |
| Post subject: | |
Before you go too far, we should talk. I am interested in getting Cometic to make MLS (multi-layer steel) head gaskets suitable for alum and iron Slants. SSDan made inquiries about this 1-2 yrs ago. SCE still makes the copper gaskets, I think. These would be as good or better than copper and would suit many applications, incl boost. I need to call Cometic and find out where we need to go here. Lou |
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| Author: | Doc [ Wed Sep 03, 2008 1:42 pm ] |
| Post subject: | |
I have never used a solid copper head gasket but have been told that they tend to leak coolent. Most of the racers using a solid copper head gasket have the block o-ringed to maintain good compression - cylinder sealing and use other sealers to keep the coolent from 'sneaking-out' past the gasket. DD |
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| Author: | robertob [ Wed Sep 03, 2008 2:16 pm ] |
| Post subject: | |
I've used copper gaskets in air-cooled motorcycle engines and even then there are a lot of pitfalls. First, the surface of the head & block has to be PERFECT - no texture at all. Second, they will all eventually leak no matter what you do. Summary: unless you're talking VW or Corvair where the gasket is a simple copper o-ring, don't waste your time. |
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| Author: | Charrlie_S [ Wed Sep 03, 2008 2:46 pm ] |
| Post subject: | |
Quote: I have never used a solid copper head gasket but have been told that they tend to leak coolent.
I used the Cox Bros (SCE) head gasket. My block was "O" ringed, and the gasket was coated with Permatex "hylomar" sealant. I ran that motor about 3 years, with no gasket problems, or coolant leakage, but it was not a daily driver.Most of the racers using a solid copper head gasket have the block o-ringed to maintain good compression - cylinder sealing and use other sealers to keep the coolent from 'sneaking-out' past the gasket. DD PS when I replace the pistons (three broken), I intend on reusing the same gasket. |
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| Author: | Shaker223 [ Wed Sep 03, 2008 4:29 pm ] |
| Post subject: | |
Quote: I have never used a solid copper head gasket but have been told that they tend to leak coolent.
I have a copper head gasket on my current engine. I o-ringed the block and used a material called hylomar to seal up the water. It leaked on the first startup but has not leaked since.Most of the racers using a solid copper head gasket have the block o-ringed to maintain good compression - cylinder sealing and use other sealers to keep the coolent from 'sneaking-out' past the gasket. DD I'd like to go the Lou route with a MLS but will have to stick with copper in the mean time. |
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| Author: | Greg Ondayko [ Wed Sep 03, 2008 6:56 pm ] |
| Post subject: | |
Ok good info there. I Have never run a copper Head Gasket and Have Always run either a stock Steelshim or A felpro with no problems. Greg |
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| Author: | robertob [ Wed Sep 03, 2008 8:07 pm ] |
| Post subject: | |
Quote: Quote: I have never used a solid copper head gasket but have been told that they tend to leak coolent.
I used the Cox Bros (SCE) head gasket. My block was "O" ringed, and the gasket was coated with Permatex "hylomar" sealant. I ran that motor about 3 years, with no gasket problems, or coolant leakage, but it was not a daily driver.Most of the racers using a solid copper head gasket have the block o-ringed to maintain good compression - cylinder sealing and use other sealers to keep the coolent from 'sneaking-out' past the gasket. DD PS when I replace the pistons (three broken), I intend on reusing the same gasket. |
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| Author: | Matt Cramer [ Thu Sep 04, 2008 8:58 am ] |
| Post subject: | |
Quote: Before you go too far, we should talk. I am interested in getting Cometic to make MLS (multi-layer steel) head gaskets suitable for alum and iron Slants. SSDan made inquiries about this 1-2 yrs ago.
I talked to Cometic last year at PRI - they said they'd need a pretty large order to justify the cost of the tooling. It would either take a slant six part company placing a bulk order or a very large group buy.
SCE still makes the copper gaskets, I think. These would be as good or better than copper and would suit many applications, incl boost. I need to call Cometic and find out where we need to go here. Lou |
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| Author: | Dart270 [ Thu Sep 04, 2008 12:43 pm ] |
| Post subject: | |
Interesting. I wonder what "large" means. They say they do custom gaskets on their site, so maybe that's bunk? I would guess $80-150/gasket would be reasonable and I'm sure we could sell 20 gaskets right away. Lou |
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| Author: | Greg Ondayko [ Thu Sep 04, 2008 1:22 pm ] |
| Post subject: | |
The Guy I was talking to About the copper stuff said they Do the Head Gaskets with a CNC Waterjet MAchine.. So There is not a lot of tooling setup there. Greg |
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| Author: | Matt Cramer [ Fri Sep 05, 2008 7:27 am ] |
| Post subject: | |
The number I seem to remember was 50 to 100. |
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| Author: | Dart270 [ Fri Sep 05, 2008 7:40 am ] |
| Post subject: | |
If I have a spare $10k sitting around, I'd rather have an alum head... A lot of the "tooling" might cross over to 2.2L/2.5L or 2.0/2.4L gaskets they already make. Other apps they make have ~88-89 mm bore size too. I'll still call them. Lou |
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| Author: | Will [ Tue Sep 09, 2008 10:20 am ] |
| Post subject: | |
I have gotten a copper head gasket from the Coxes. Befor they carried them I have used gasket shops from the back of national dragster. I have never found a copper gasket shop that did not have a template or complain about making me one. But the Coxes have one on the shelf... Will |
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