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Johnny didn't waste any time the next day and removed the serpentine belt and remaining accessories. The water pump was next to come off via its 10mm bolts, so he could then remove the crank pulley with an LS1-specific crank-pulley tool. Next, he took off the front timing cover (eight 8mm bolts). Behind it is the stock LS2 timing set, which is actually quite good and usually what LS guys choose when they install their new cams. Ours with 80,000 miles needed to be replaced, so David Canfield at Trick Flow, suggested the company's adjustable double-roller timing set.