Pontiac 326 350 389 400 428 455 MID-AIR™ MidRise Aluminum Intake Manifold [Satin] These replacement valve seats are

These replacement valve seats are just like the originals

Speedmaster chrome breathers keep your crankcase properly vented and add a little shine under the hood

The anchor area on these bands is extra thick

These T-bar valve cover wing nuts from Speedmaster make valve cover installation and removal easy and hassle-free

They're available in both dual quad and single quad styles

Pontiac 326 350 389 400 428 455 MID-AIR™ MidRise Aluminum Intake Manifold [Satin] These replacement valve seats areThis is an outstanding manifold for high performance street Pontiac engines. Unlike similar competitive manifolds, the MidRise Air from Speedmaster allows unlimited ambient air flow under the plenum and around the runners which helps create a cooler incoming air fuel charge which produces additional power..