Ford 429 460 MID-AIR™ MidRise Aluminum Intake Manifold [Black] Speedmaster pinion depth shims allow

Speedmaster pinion depth shims allow you to seat your pinion gear perfectly

These rods incorporate a special doweled cap for specific cap-to-rod alignment and are profiled with extra clearance for stroker applications

heat-treated to the highest Rockwell hardness available

Made from CNC machined billet steel for heady duty applications

and all accessory gaskets--everything for a complete engine rebuild

Ford 429 460 MID-AIR™ MidRise Aluminum Intake Manifold [Black] Speedmaster pinion depth shims allowThe Speedmaster MidRise Air design features the identical plenum and runner design as the normal MidRise. The main difference is that there is an open area under the plenum chamber. This feature is sometimes called an air gap design. The air flowing under the plenum provides a cooler charge for the incoming air with less heat transfer from the engine. This cooler air charge provides additional power and torque.