Pontiac 326 350 389 400 421 428 455 MidRise Air Intake Manifold [Black]

Description

Pontiac 326 350 389 400 421 428 455 MidRise Air Intake Manifold [Black]
1-147-075
Brand:
Speedmaster
Part Number:
1-147-075
Part Type:
Intake Manifolds, Carbureted
Product Line:
MidRise Air
Engine Block Style:
Stock/OEM standard deck
Carburetor Quantity:
One
Intake Style:
Dual Plane
Basic Operating RPM Range:
1,500-6,500
Intake Manifold Height:
6.50
Intake Material:
Aluminum
Intake Finish:
Black
EGR:
No
Quantity:
Sold individually.
Calculator:
CFM Calculator
The 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.
Item Condition:
Brand New
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