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Message: [QUOTE="boss300, post: 1560982, member: 12979"] Hello all, I currently have a 99 7.3 with 250/100’s, s369sxe, cryo’d forged rods, and otherwise stock bottom end. It just broke the crank somehow (haven’t pulled down yet to inspect) and am going to build another engine. I want to upgrade the bottom end and was wanting opinions on using a girdle with main studs, hardfilling the block and using main studs with no girdle, or doing it all. I am concerned the hardfill will hurt my cooling capacity as this truck still tows a 37 foot travel trailer through the Carolina’s and Tennessee. Is a girdle with main studs worth it without the fill in order to keep the best possible cooling? I don’t plan to make over 600hp anytime soon. Thanks [/QUOTE]

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