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| copper head gaskets https://slantsix.org/forum/viewtopic.php?t=59648 |
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| Author: | '67 Dart 270 [ Fri May 20, 2016 6:22 pm ] |
| Post subject: | ...because... |
I hate leaks...b |
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| Author: | Killer6 [ Fri May 20, 2016 7:05 pm ] |
| Post subject: | |
Quote: I once read that cylinders with 4 head bolts around them will generally require O ring when subjected to high compression, high boost, or large levels of nitrous. This would be like the slant six, and ford/chevy small blocks.
SB chevies have 5 head bolts around ea. cyl. just as BB Mopars,the only really good feature they share,they also share many other design features that are undesireable. SB Mopars have only 4/cyl., and can tolerate 15psi of boost w/only Hi-po Fel-pro gaskets for a decent stretch as long as you're not experiencing lean or detonation conditions, at which point the pistons may give up first. Copper head gaskets w/o any sealer have been used & re-used by annealing then simply placing back in service forever, but they are usually in a small air-cooled sports/industrial app. where coolant passages don't exist.
If they have 5 or more head bolts around the cylinder, they can stand higher pressures without o rings. This would be like the Hemi, and Big block Mopar engines. I think it all boils down to how much 'squeeze' you are putting on things. |
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| Author: | Rick Covalt [ Sat May 21, 2016 5:18 am ] |
| Post subject: | |
I was going to say, Just from reading and no practicle experience that for a street slant six, getting water in the oil may be the issue. Rick |
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| Author: | '67 Dart 270 [ Sat May 21, 2016 10:11 am ] |
| Post subject: | air cooled.. |
Yes, I recall seeing air cooled engines a lot when Googling copper head gaskets, that makes sense. |
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| Author: | CNC-Dude [ Sat May 21, 2016 12:34 pm ] |
| Post subject: | |
It also isn't one of those weekend swaps you do where you pull the head and change to the copper gasket. It requires a very flat surface on both the block and cylinder head requiring a complete engine teardown and a trip through the machine shop. So this isn't a spur of the moment upgrade. It requires planning and forethought. Its only when you don't follow the required steps of engine machine work and prep that you have water leakage or seeping issues. |
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| Author: | '67 Dart 270 [ Sat May 21, 2016 7:35 pm ] |
| Post subject: | copper |
I get it, that's why I'm shying away from copper for my application. It sounds like a big investment in time and energy. b |
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