485 cu.in. build - 460 Ford Forum
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post #1 of 4 (permalink) Old 11-06-2012, 09:45 PM Thread Starter
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485 cu.in. build

I am considering changing my pulling truck to a 485 cu inch class and was wondering what would be the best combo. I now have a 4.14 stroke crank and .080 over bore and P-51 heads. The max bore spacing alowed is 4.9 inches. Any heads are allowed ecept Hemi. Single four barrel carb. no sheet metal or tunnel ram manifolds. Thanks for your input.
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post #2 of 4 (permalink) Old 11-07-2012, 11:00 AM
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A 1.25 CD +.080 stroker piston with a 7.1 rod and an offset ground factory crank will net you 483 cubic inches with a 1.82:1 R/S ratio.

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post #3 of 4 (permalink) Old 01-15-2013, 10:25 AM
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I have a few engines out there in that class with a slightly different set-up for lower budget.
Offset ground FORD crank to Mopar journal size and 3.975" stroke; a bushed pin end Mopar 440 rod 6.760" long, (could be aftermarket replacement or not) and a 4.390" bore with a piston compression height of 1.560".

Those P-51 heads and a Trick Flow Dominator manifold with a 1,250cfm carb. A custom cam to match your vehicle and running gear.


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post #4 of 4 (permalink) Old 01-15-2013, 02:13 PM
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The term " Best Combo" will be different depending on budget .....

factory block with standard Production "style" heads.....


Max Effort
Aftermarket Block 4.700 bore destroked
A-style heads
wicked valvetrain and 10,000 plus RPM capable

Big difference
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