Stick Swap: 5.0 Camshaft and Valvetrain Upgrade
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Once the camshaft was in, Crane's double-roller timing chain and billet gears were installed and the cam thrust-plate bolt was tightened to 9-12 lb-ft of torque. The actual cam timing gear gets 40-45 lb-ft of torque for a small-block Ford application. The crankshaft sprocket features three keyways that allow you to advance or retard the cam's timing by 4 crankshaft degrees, without needing offset keys or bushings. While the idea of degreeing the new cam to change the power curve was inviting, we decided it was best to heed Crane's recommendation and install the cam straight up, with the timing marks for the crank and cam gears meeting each other at 12 and 6 o'clock respectively (also called "dot-to-dot") and the piston in the No. 1 cylinder at top dead center on the compression stroke (both valves closed). If you elect to advance or retard a new cam, you might experience piston-to-valve clearance issues if your engine has domed pistons or, in the case of a stock 5.0, the cam has a ton of duration or more than 0.544 inch of lift. View Related Article
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Ford E-250 Research
Get updated on all your car buying needs from safety features, to specs, to crash test ratings and options. Get all the information you need if you are interested in buying a new car like the Ford E-250. Fuel efficiency is important and the 2010 E-250 has fuel economy comparable to other cars in its class, and also comes with comparable safety features. The Ford Shelby GT500 and the Ford Mustang are other vehicles that might interest you.
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