Time was when a valve job was done with some valve-grinding compound and a vacuum cup on a stick. But no more. Today's high performance engines require the same machining precision in the valves that ...

Thunder Power's 4-valve cylinder head conversion for big-block Chevys bolts right onto production iron or aftermarket aluminum cylinder blocks. The heads even have the necessary bosses to add an extra ...

The '11-present 5.0L Coyote engine now basks in the performance limelight; deservedly so, because it truly is a wonderful, world-class piece. However, Coyote's immediate Mustang predecessor—the ...

The Two-Valve 4.6 came out of the gate dragging an anchor. When it debuted in the '96 Mustang GT, the modular replaced our beloved push-rod 5.0. The Two-Valve made the same power as the outgoing ...