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Old Jan 19, 2005 | 06:19 PM
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jethro bodine's Avatar
jethro bodine
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390 pistons

ok, i think im going to go with the edlebrock heads and rpm manifold on my 390, right now i have my block getting checked at the machine shop and i have the pistons that have a circle in the middle, is this for lower compression? if so what type of pistons do i want to go with, for my future combo?
 
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Old Jan 19, 2005 | 06:37 PM
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rusty70f100's Avatar
rusty70f100
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From: Iowa
It sounds like you have dished pistons. They were common.

IMO the best pistons to use in a 390 is the TRW / Speed Pro L2291 pistons. They are a flat top forged piston, and have the proper compression height to yield good compression.
 
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Old Jan 20, 2005 | 09:40 AM
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Mike G's Avatar
Mike G
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From: Littleton, CO
The pistons with the circle in them were the standard low compression truck pistons. The pistons Kurt referes to are the "car" pistons, which ran a higher comp ratio.

--Mike
 
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