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Stock LS1 bore question...
What is the stock, std. bore of an LS1/LS6 block?
More specifically, the 12561168 casting. I've found new blocks (all same GMPP number 12561166), listing 3.900"(Scoggin-Dickey), 3.898"(JEGS), and 3.890"(SUMMIT) finished bore. GMPartsDirect says its same as 12561168 bore. Whats going on?? I have stock pistons I want to use. So I just want the stock bore as it would have came in a GM car, but I'm confused. https://sdparts.com/details/gm-perfo...parts/12561166 http://www.jegs.com/i/GM-Performance...61166/10002/-1 http://www.summitracing.com/parts/na...1166/overview/ http://www.gmpartsdirect.com/results...umber=12561166 |
I always knew it as 3.898
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I think what you have here is the rounding up of the numbers
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I don't think it's rounding. Because you'd been rounding .008 thousandths for 3.890. That is a huge gap on something that should have a small tolerance
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The odd thing that gets me is that its all the same exact block they are selling but they are spec-ing it out different....
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