Piston confusion Help please

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Apr 16, 2012 | 07:18 PM

flynlow3

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Piston confusion Help please

I have a 6.0L iron block out of a truck. I am unsure of the year but it is LS platform. The engine was low mileage with upper engine fire. I salvaged the block and had it bored .30 over. I now need to get the pistons for it. I plan on using a stock replacement since I will not be adding any nitrous or super charger to the mix. I had the stock crank polished and will be reassembling it with LS3 heads and LS3 intake.

My problem is: I called summit racing and they guy answering the phone was very helpful but he kept lacking the confidence that the pistons he picked out were right. I tried speaking with someone twice before i gave up. I dont want to order the wrong pistons and have them for an older GM 350. Can anyone help me pick out for a stock 6.0L iron block that has been bored .30 over. I need pistons and rings for my machine shop to finish their work on my motor.

Thanks.

Apr 17, 2012 | 02:14 AM

bww3588

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I would look into aftermarket pistons. With the ls3 heads, you won't be able to run much of a cam without valve reliefs in the pistons.

Apr 17, 2012 | 04:55 AM

LS1MCSS

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Here ya go.
http://www.summitracing.com/parts/SLP-H1129CT75MM/

Apr 17, 2012 | 01:11 PM

redtan

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Wiseco and Diamond have many choices right off the shelf in 4.030 pistons.

Apr 17, 2012 | 11:03 PM