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GT40P Heads

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Old 10-19-2013, 09:45 PM
broketruckjohn broketruckjohn is offline
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GT40P Heads

what gains should i expect from replacing stock heads with GT40P heads? will there be any machine work that will have to be done?302 with street strip cam,headders,dual plane edelbrock high rise intake,650 edelbrock carb,accel high voltage coil 0.40 over pistions.the heads are F77E
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Old 10-20-2013, 08:53 AM
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Conanski Conanski is offline
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Roughly 30% gains across the board.
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Old 10-20-2013, 07:22 PM
broketruckjohn broketruckjohn is offline
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Horsepower

does anyone know a Simple formula for figureing out approxmate horsepower.i would like to figure all aspects into equasion.
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Old 10-20-2013, 08:16 PM
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No.. You can do desktop dyno and approximate it at the crank..
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