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5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

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Old 05-16-2006, 12:42 PM   #1
laserred9550
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Default 302 to 306??

I was lookin at trick flows track heat upper end kit, it says they dynoed it in a 306ci engine, what is done to get 302 to 306? And is it worth it for 4cu?
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Old 05-16-2006, 12:45 PM   #2
Hurricanedt77
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Default RE: 302 to 306??

Correct me if i'm mistaken, but i'm pretty sure thats simply doing some mild boring of the cylanders. .040 over stock size.
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Old 05-16-2006, 12:45 PM   #3
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Default RE: 302 to 306??

the only differance is the bore, and any extra HP over 4 cubic inches will be lost due to extra friction and heat
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Old 05-16-2006, 12:52 PM   #4
laserred9550
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Default RE: 302 to 306??

hell i wouldnt bore for 4 cubes anyway.
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Old 05-16-2006, 12:54 PM   #5
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Default RE: 302 to 306??

a 306 is nothing more than a 302 bored and honed to a finshed size of 4.030
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Old 05-16-2006, 01:02 PM   #6
88BlueGT
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Default RE: 302 to 306??

IMO its not worth it to tear your motor apart to build a 306... if your going to do that you mind as well just stroke it!
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Old 05-16-2006, 01:04 PM   #7
myshifter
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Default RE: 302 to 306??

I doubt the sentiment here is anyones tearing apart anything to bore and hone 30 thou, if your already in the rebuilding mode this is what you will end up with. Trick used a worn 302, did the machine work and thats what they used for testing.
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Old 05-16-2006, 01:08 PM   #8
laserred9550
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Default RE: 302 to 306??

but i should still develop some respectable power with the 302, right?
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Old 05-16-2006, 01:13 PM   #9
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Default RE: 302 to 306??

You get achieve very low numbers w/ a 302 if everything is matched correctly.
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Old 05-16-2006, 01:14 PM   #10
laserred9550
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Default RE: 302 to 306??

low numbers??? this kit shows 350hp that doesnt seem to bad on a lightly modded car.
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Old 05-16-2006, 01:14 PM
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