Re: LS series, 6.0 iron block overbore allowance
.30 over on a Cast Iron LS Truck block is fine.We make over 700 NA Flywheel Horse on one and have never had a problem.
.30 over(4.030) with a 4" Stroke Crank is the Common 408" Combo that just about all LS Builders Sell.
Ray T
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