Mopar Chrysler Dodge SB 318 340 360 MID-AIR™ MidRise Aluminum Intake Manifold [Satin] The oil pan helps to

The oil pan helps to cool the oil thru its contact with the outside air

These Speedmaster expansion tanks are perfect for cars with low-mount radiators to provide a convenient filling location and to bleed off unwanted air

wall DOM steel

They feature bodies and / or secondary towers and feature brass secondary contacts (except direct fire coil on plug applications)

and hardware

Mopar Chrysler Dodge SB 318 340 360 MID-AIR™ MidRise Aluminum Intake Manifold [Satin] The oil pan helps toThe 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.