Mustang at Stage Three

Does 415 hp and 385 lb-ft of torque sound good to you? Duh. This Mustang is the latest invention from Roush, with its star component being the intercooled Roushcharger system perking up the stock 4.6L V-8, which has a custom-calibrated ECM. The suspension has been engineered with specially tuned auto parts like front struts, rear shocks, springs, sway bars, and jounce bumpers. Performance also hit the brakes in the form of front 14-inch two-piece rotors and four-piston calipers.

Stuff to make it cooler to the naked eye includes a seven-piece body kit with a hoodscoop, a rear wing, rocker panels, and a rear valance. There are also custom 18-inch rims, white-face gauges, and Roush badging all over, including in the engine compartment.

A Dose of Diagnosis

Whether you’re rebuilding an existing set of heads or a used set of unknown origin, the drill is always the same. Look for the worst and hope for the best. Make sure there is no obvious damage. In disassembling heads, look for bent pushrods or stud wear that could indicate damage or misapplication.