Engine Assembly Basics -- Cam, Valvetrain, Top-End
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Just as the retainer must match the spring at the top to properly secure and locate it, a spring cup should be used at the bottom to keep the valvespring from dancing around on the cylinder head side. Several styles of cups and locators are available, which register either to the outside of the spring, or on the inside of a dual spring assembly. We used COMP PN 4700 cups for this iron Mopar head, which locates a 1.550-inch spring by its outside diameter. As is often the case, spring seat machining is required on these production heads to fit the locator. View Related Article
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Ford Mustang Research
Consider the Ford Mustang for your next new car, and browse reviews featuring information on test drives, comparisons, options and features. The 2010 Mustang has fuel economy of 20 mpg, and comes with comparable warranty coverage to other vehicles in its class. Other similar vehicles are the Chevy Camaro and the Pontica GTO.
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