Speedmaster®

Oldsmobile 400 425 455 MID-AIR™ MidRise Aluminum Intake Manifold [Satin]

US $355.00
Single Points Earn 355 Points

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MPN 1-147-076 UPC840136500537

Product Information

Specs

Brand:Speedmaster
Part Number:1-147-076
Part Type:Intake Manifold, Carbureted
Product Line:MidRise Air
Engine Block Style:Stock/OEM standard deck
Carburetor Quantity:One
Intake Style:Single plane with divider
Basic Operating RPM Range:1,500-6,500
Intake Manifold Height:6.500 in.
Intake Material:Aluminum
Intake Finish:Natural
EGR:No
Quantity:Sold individually.
Notes:Manifold is 1.25 in. taller than stock.

Description

This is the only available high rise high performance single plane with divider manifold for this engine. It is an inch and a quarter taller than competitive manifolds thereby producing more power. The MidRise air design provides an air gap under the plenum chamber which helps cool the intake charge providing additional power. Available with machined injector bosses.

NOTE: Hood clearance must be checked as this manifold is approximately 1.25" taller than a similar stock intake manifold.

Warranty Information

12-Month Limited Worldwide Warranty

Prop 65 Warning

This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

Installation Guide

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This AI-generated guide is for general reference only and does not constitute official Speedmaster product documentation. Always verify fitment, torque specifications, and safety requirements before installation.