KRE'S New Aluminum Heads: On the Dyno
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Here's a comparison of the valves. Ferrea stainless steel valves are used in the KRE heads in 2.11-/1.66-inch sizes. The valves that came out of the 6X heads measure 2.11/1.77 inches since the 6X was modified earlier to accept the larger 1.77-inch exhaust valve. 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 2011 Mustang has fuel economy of 23 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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