compression on pump gas

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Nov 30, 2014 | 09:11 PM

440 aspen

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Mopar Fan

Joined: Apr 2013

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From: Pendleton Indiana

compression on pump gas

how much compression could I run on pump gas (93 octane) with cast iron 452s on my 440? looking into a rebuild

Dec 1, 2014 | 01:11 AM

TVLynn

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10 / 1 dependson cam too ......

Dec 1, 2014 | 09:54 PM

440 aspen

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Mopar Fan

Joined: Apr 2013

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From: Pendleton Indiana

im currently running the 509 purple shaft and plan on reusing it or buying another if needed

Dec 2, 2014 | 02:24 PM

Coronet 500

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Joined: May 2011

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From: Ontario Canada

I would look at 9.5 to 1. With the light car you could go a little more.

Remember compression ratio is not the big horsepower getter, heads and cam are.

Dec 2, 2014 | 03:34 PM

TVLynn

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Maybe re think your cam 509 needs compression and gears !

Dec 8, 2014 | 08:24 PM

440 aspen

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Mopar Fan

Joined: Apr 2013

Posts: 65

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From: Pendleton Indiana

I will be running 3.91 rear gear once i get my 8 3/4 built

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