Flowtech- 31154FLT Long Tube Headers for 65-75 Oldsmobile 400-455

Flowtech- 31154FLT Long Tube Headers for 65-75 Oldsmobile 400-455


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1965-1974 Oldsmobile Cutlass/442, 71-74 Delta 88: 400-455ci Standard Headers Primary Tube Collector Size 1.75 in. x 3 in.

Flowtech headers are the perfect combination of performance and value. Flowtech long tube headers are precision engineered using mandrel bent tubing, formed collectors and 5/16" flanges with sealing rings for a leak-free seal. All mounting hardware and gaskets are included for a simple installation. This header is coated in a high heat and corrosion resistant metallic ceramic thermal coating that increases exhaust velocity and reduces underhood temps for increased performance.


  • Fuel Economy From The Engine
  • Leak Test For Max Performance
  • Ceramic Headers
  • Rust And Corrosion Resistance
  • Mandrel-Formed Power Plenum
  • Leakproof O-Ringed Port Seals
  • Include All Mounting Hardware
Bolt Size 3/8-16 x 3/4
Brand Flowtech
CARB (California) Compliant No
Collector Diameter 3.00 inch
Emission Code 4
Engine Oldsmobile V8
Header Finish Silver Ceramic
Header Style Long Tube
Primary Tube Dia. 1-3/4 inch
Product Type Headers
Tube Material Mild Steel
UPC 787480311542
Part Number 31154FLT

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