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2003 Gmc 2500 duramax
engine built by Wehrli a Custom Fab Tuned by Duramax Tuner Specs; Socal Girdle Kit Carrillo Rods Fingers Oval Cast mahle Pistons 16.5:1 Ratio, .020 with valve reliefs New GM Oil Pump New GM Oil Cooler Comp cams Valve springs and Retainers Ported Heads, 5 angle Valve Job, New Seals and...