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Pistons.......... Not even JE can help.

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Old 06-07-2013, 08:52 PM
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Default Pistons.......... Not even JE can help.

OK, so i called up JE and received 3 different answers as to what pistons i need for my build.

Gen 6 502.

Boring it 30 over. so 4.500 Bore.

but they have given me 3 different part numbers and i would really like some help as to which ones.

http://www.summitracing.com/search/m...re-in/4-500-in

Not sure which rod length and other specs. I want to keep compression as close to stock as possible.
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Old 06-07-2013, 09:08 PM
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Stock rod length is 6.135 and stroke is 4.00, pick what kinda top you want (Flat top, mini dome,inverted dome etc) and go from there.
I would go with flat tops if under 10 psi of boost, stock had tiny mini domes and inverted dome if 12-14 psi is in your future, Smitty
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Old 06-07-2013, 09:16 PM
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You sir, Are the man! Thank you!
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Old 06-07-2013, 09:16 PM
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These are the small domes, should put you in the 9:0:1 to 9.25 range depending on deck height, gasket thickness, chamber size, etc. In general, this is a good piston for a N/A marine engine with iron head. Don't know what you're trying to build though,

http://www.summitracing.com/parts/je...make/chevrolet
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Old 06-07-2013, 09:19 PM
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Summit will also price match if you call them

JE-258275 Big Block Open Chamber Dome Top
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Old 06-07-2013, 10:14 PM
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http://www.summitracing.com/parts/je...make/chevrolet

Went with these.

with these rings.

http://www.summitracing.com/parts/jep-j10008-45005

Its a 10 PSI procharged build.
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Old 06-08-2013, 12:33 AM
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another good piston which is made by j&e is srp..i use them al the time,you dont want a mini dome,,it will give 10.4 to 1 compression with a 118cc iron head..thease will give you 9.1 compression..

BIG BLOCK CHEVY - CHEVROLET 502 REPLACEMENT SERIES - JE Pistons

order info> 281919 Product Detail Information - JE Pistons
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