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| Pontiac - Boost Turbo, supercharged, Nitrous, EFI & other Power Adders discussed here. |
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#1
12-27-2009, 10:37 PM
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Supercharger - which Cometic Head Gasket?
I am getting ready to pull my E-heads off my blower car to switch to a cometic gasket as I am going to up the boost and still have the old Fel-pro 1016's on it. I need to know what gasket would be recommended for a 462 with ~ 15 lbs or so of boost?
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1969 GTO, 3370 lbs, 10.5” tire... 07/31/21 Norwalk 9.42 @ 142 1/4, 5.95 @ 115 1/8th mile 3400 lbs...535 with Junk dinosaur Eheads |
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#2
12-27-2009, 11:31 PM
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69,
Any of their MLS will do. I've run them with 27# of boost.
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East Coast Mafia TTFMF Making CVWHAT's great again. I guess it took a deplorable ECM member to do it! Quote:
 Fastest Blow-thru Pontiac powered car in the Country 8.440@166.97 (3465lbs) Fastest Pontiac CV-1 car on the planet with only 6 passes on the combo: 4.80@147.65/ 7.49@180.12MPH (3365lbs) |
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#3
12-28-2009, 12:40 AM
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I've been running Edelbrock head gaskets at boost levels up to 18psi without any trouble. My personal opinion is:
Good head bolts or studs(I'm using ARP studs) and a good tune(no detonation) is much more critical than the head gasket. Detonate the engine and any gasket will blow. If it doesn't then the pistons will. |
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#4
12-28-2009, 01:19 AM
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I've tried a couple different head gaskets and by far Cometics have stood up to the abuse I've put them through.
I use ARP studs as well. With only 10 head bolts we are at a major disadvantage, just like the SBF guys. I don't care what your tune is...from the data that I have anything over 24lbs of boost and you are going to go through head gaskets. Head gaskets are like a routine maintenance deal (change my oil...change my head gaskets LOL)...it's just a fact of life. 
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East Coast Mafia TTFMF Making CVWHAT's great again. I guess it took a deplorable ECM member to do it! Quote:
Fastest Blow-thru Pontiac powered car in the Country 8.440@166.97 (3465lbs) Fastest Pontiac CV-1 car on the planet with only 6 passes on the combo: 4.80@147.65/ 7.49@180.12MPH (3365lbs) |
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#5
12-28-2009, 01:40 AM
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Quote:
I used to run Cometics as well but didn't like the way they over hung the cyl. head chambers when I went to KRE heads. Thought I'd try the Edlbrocks as they were available locally to me and priced right. So far they have been fine 2 seasons on them so far. |
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#6
12-28-2009, 08:51 AM
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MLS it will be then... Anyone know a good source/Price? I found a set for a total of $200 shipped, is that a good deal?
__________________
1969 GTO, 3370 lbs, 10.5” tire... 07/31/21 Norwalk 9.42 @ 142 1/4, 5.95 @ 115 1/8th mile 3400 lbs...535 with Junk dinosaur Eheads |
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#7
12-28-2009, 12:43 PM
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You have a PM.
__________________
East Coast Mafia TTFMF Making CVWHAT's great again. I guess it took a deplorable ECM member to do it! Quote:
Fastest Blow-thru Pontiac powered car in the Country 8.440@166.97 (3465lbs) Fastest Pontiac CV-1 car on the planet with only 6 passes on the combo: 4.80@147.65/ 7.49@180.12MPH (3365lbs) |
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