GT-40 Heads
GT-40 Heads
Elder User
Joined: Jul 2003
Posts: 935
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From: TEXAS!!!!!!!!!!!!
GT-40 Heads
umm need engine specs to tell you accuratly
all stock?
gimme all these specs and i'll run it trhough my lil dyno program
all stock?
gimme all these specs and i'll run it trhough my lil dyno program
Last edited by drewcoolness99; Aug 20, 2003 at 05:06 PM.
Elder User
Joined: Dec 2002
Posts: 649
Likes: 1
From: Monterey bay area
GT-40 Heads
GT40p heads would add about 10-20 hp (depending on comp ratio, wear and tear on engine), adding roller rockers would free up another 5 ponies....
in order to run gt40p heads one must use MAC headers due to spark plug angle.
in order to run gt40p heads one must use MAC headers due to spark plug angle.
Elder User
Joined: Jun 2002
Posts: 678
Likes: 3
From: Dallas, Texas
GT-40 Heads
Originally posted by Capone
GT40p heads would add about 10-20 hp (depending on comp ratio, wear and tear on engine), adding roller rockers would free up another 5 ponies....
GT40p heads would add about 10-20 hp (depending on comp ratio, wear and tear on engine), adding roller rockers would free up another 5 ponies....
Senior User
Joined: Sep 2002
Posts: 434
Likes: 2
From: Oregon: Land of the Majes
GT-40 Heads
And all need to be replaced for something that would actually let the 351w breathe....lol.
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Senior User
Joined: Jul 2002
Posts: 150
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From: torrance
GT-40 Heads
Originally posted by lvmoose007
And all need to be replaced for something that would actually let the 351w breathe....lol.
And all need to be replaced for something that would actually let the 351w breathe....lol.
better when ported. It was the design of the combustion chamber that allowed for a smaller, better breathing head.
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Elder User
Joined: Jul 2003
Posts: 935
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From: TEXAS!!!!!!!!!!!!
GT-40 Heads
Originally posted by slammercb
No flame intended here, but compared to what. The flow numbers look pretty good to me for a stock head. And even
better when ported. It was the design of the combustion chamber that allowed for a smaller, better breathing head.
No flame intended here, but compared to what. The flow numbers look pretty good to me for a stock head. And even
better when ported. It was the design of the combustion chamber that allowed for a smaller, better breathing head.
Senior User
Joined: Sep 2002
Posts: 434
Likes: 2
From: Oregon: Land of the Majes
GT-40 Heads
Originally posted by slammercb
No flame intended here, but compared to what. The flow numbers look pretty good to me for a stock head. And even
better when ported. It was the design of the combustion chamber that allowed for a smaller, better breathing head.
No flame intended here, but compared to what. The flow numbers look pretty good to me for a stock head. And even
better when ported. It was the design of the combustion chamber that allowed for a smaller, better breathing head.
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