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MidRise Air Intake Manifold for Oldsmobile 400/425/455 ci - Polished Finish
InfoVehicle Info Needed
SPEEDMASTERPART NUMBER: 746-1-147-077

MidRise Air Intake Manifold for Oldsmobile 400/425/455 ci - Polished Finish

$37700
ShippingShips on 09/14/2026
Lowest PriceLowest Price Guarantee

Oldsmobile
MidRise Air Intake Manifold
  • Oldsmobile 400, 425, 455 ci. Engines
  • Single Plane with Divider
  • Height: 6.500 in.
  • Non-EGR
  • RPM Range: 1,500-6,500
  • Polished Finish

    Speedmaster 1-147-076 MidRise Air Intake Manifold Features:

    • Matching plenum and runner design to keep air and fuel distribution even
    • An open area underneath the plenum chamber (Air Gap) delivers cooler charge air and less heat transfer
    • High-grade aluminum casting
    • Post-machined intake ports
    • Square bore (4150) carburetor mounting flange
    • Machined polished

    Note: Hood clearance must be checked before installation, the manifold is approximately 1.250 in. taller than stock

    • Part TypeIntake Manifold
    BrandSPEEDMASTER
    Package Height8.7
    Package Width15.3
    Package Length23.0
    Weight23.0 PG
    Part CategoryPerformance Parts
    EgrNo
    Intake MaterialCast Aluminum
    Intake StyleSingle Plane w/Divider
    Rpm Range1500-6500
    QuantitySold individually
    Intake FinishPolished
    Part FitmentSemi Universal
    Engine Make/SizeOldsmobile V8
    Manifold TypeMid Rise
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews
    Please click here to download the instructions PDF file

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