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Cheapest 4.030 pistons?

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Old 03-03-2008, 02:33 PM
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Default Cheapest 4.030 pistons?

The aftermarket doesn't seem to support engine builds on a college budget like you can find all day long with 1st gen small blocks. I keep finding 4.030" 3.622" stroke pistons for over $700 easy, where have you guys found cheaper pistons besides used on ebay?

LQ4 block and rotating assembly, looking for 10:1 compression or close to that with a simple .030" over. The heads are undecided for the moment, but probably stock LQ9 heads decked down ~.010" or so for a clean surface during the rebuild, same with the block's deck. This motor will be N/A it's entire life.
Old 03-03-2008, 02:47 PM
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my custom diamond l92 pistons were for my 408 they were 715 or something it was under 750 i know for sure but that was new with rings

i'm a broke college kid as well, i'm barley able to finish this build
Old 03-03-2008, 05:20 PM
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Any pistons in the 3-500 range? I'm not looking for high dollar pistons. I'd actually go to the dealership for OE replacement pistons if one of the cylinder walls didn't have such deep scratches. .020" will clean up the deepest grooves so I figured .030" over will yield a nice 370ci.
Old 03-03-2008, 06:36 PM
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maybe the mahle piston, probably in the 5xx range.
Old 03-03-2008, 06:45 PM
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Mahles are great too.My Mahles for my old motor with a 3.905 were 550 with rings.
Old 03-03-2008, 08:19 PM
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wiseco = $530-$560 + they already come with the ring lands moved down for big shots of gas!
Old 03-03-2008, 08:44 PM
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I can get you Mahle flattops with rings for 500.00,run them with 317 heads,that will keep compression down
Old 03-03-2008, 10:41 PM
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Originally Posted by InchUp
Any pistons in the 3-500 range? I'm not looking for high dollar pistons. I'd actually go to the dealership for OE replacement pistons if one of the cylinder walls didn't have such deep scratches. .020" will clean up the deepest grooves so I figured .030" over will yield a nice 370ci.
actually there is a replacement 4.00, 4.03, 4.06 piston
they are speed pro brand, come with grafal coated skirts, and come with wrist pins for use with stock rods, the pins are pressed to stock rods.
they are about 200$ and rings are about 100$ so for about 300$ u get
pistons, wrist pins, rings.
i have used these pistons many times now, with one motor making over 550 rwhp on spray with t56
they are designated as lq4 rebuild pistons and come with a 8cc dish.
will see if i can find part number right now and will post up
Los
Old 03-03-2008, 10:49 PM
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Default pistons and rings part numbers

piston part number is
Speed Pro 99-02 Vortec
H857CP
.048 Dish (8cc)+
1.5mm top ring
1.5mm 2nd ring
3.0mm oil ring
197.00$ Set of 8

Piston rings part number is
Speed Pro
E921K 78.00$ set
Old 03-03-2008, 11:14 PM
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That is great news! Thanks for posting that. Would it be alright to use 4.030" LQ9 pistons if there were such a thing? I read an LQ9 makes a high compression from the flat top pistons.



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