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March 12th, 2011, 03:02 PM
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#1 |
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Look Ma! My First Post!
1989 Mustang GT
11.29
Join Date: Mar 2011
Location: Texas
Posts: 1
 iTrader: 0 reviews
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Head Gasket Woes
89 Mustang GT. 306 with 9:1 compression, Edelbrock Heads, 274 HP Cam, Rollers, 255LPH pump, 42lb injectors, Procharger P1 SC, 11 lbs boost.
SCT Chip tuned at 435 hp to wheels. I keep blowing head gaskets. Air escaping into cooling system overpressurizing and tripping 16lb cap pushing all water overbaord into overflow and then from overflow onto street. Should I go with Cast heads and get rid of aluminum? Any advice would help... Thanks! |
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March 12th, 2011, 03:11 PM
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#2 |
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I Post Entirely Way Too Much
1991 Ford Mustang GT
Join Date: May 2007
Location: San Diego, California
Posts: 6,058
iTrader: 0 reviews
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head studs
__________________
 DART 331ci stroker, AFR 185 heads, Trick Flow R intake, Accufab 70mm tb, 75mm pro m Maf, 30lb injectors, jba headers, 2 1/2" x pipe flowmaster super 10 mufflers, 255 fuel pump, 3:27 gears |
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March 12th, 2011, 05:39 PM
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#3 |
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I Post Entirely Way Too Much
1991 Mustang LX 5.0
Join Date: Jan 2010
Location: Minnesota
Posts: 5,572
iTrader: 2 reviews
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Head studs and multi layer steel (mls) gaskets like cometics. If you are untuned, I would get one done asap! The aluminum heads are not your issue.
__________________
Point made in less than a few hours with minimal response. http://www.moddedmustangs.com/forums...ml#post4465184 |
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March 12th, 2011, 06:19 PM
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#4 |
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Hardcore Enthusiast
'89 LX 'Vert
10's or bust... Literally.
Join Date: May 2009
Location: Denver, Co
Posts: 2,915
iTrader: 0 reviews
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the heads/block COULD be an issue. I would have them checked out while you have the motor apart.
but +1 to head studs, and better gaskets
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H/C/I 302 + nitrous for now... supercharger/turbo soon?  |
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March 12th, 2011, 06:40 PM
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#5 |
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MM Fanatic
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I run 11psi with aluminum heads and still have the factory head gaskets. You are probably detonating under load or your heads/block are not straight? I'd figure out why before getting stronger gaskets, I'd rather lose a gasket then something else.
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March 12th, 2011, 08:54 PM
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#6 |
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Banned
1992 Lx
11.39@119.24
Join Date: Jan 2008
Location: Az
Posts: 11,644
 iTrader: 0 reviews
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which gaskets you running? pt1s?
__________________
[QUOTE=93mustank;2577445]We speed tested my right arm for quickness in shifts... So he could design the cam for proper shift recovery.[/QUOTE] |
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