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FlowtechPart 31150FLT✓ Fits 6 vehiclesMade in CN
Product Details
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Vehicle Fitment & Compatibility
6 applicationsCompatible Engines
6.6L V8 400ci5.7L V8 350ci
Application Notes
with Silver Ceramic Finish1-3/4 inch Tube Diameter
View all 6 vehicle applications
Years
Make / Model
Submodel
Engine
1968–1969
Oldsmobile 442
6.6L V8 400ci
1968–1974
Oldsmobile Cutlass
5.7L V8 350ci
1968
Oldsmobile Cutlass
5.7L V8 350ci
1968
Oldsmobile Cutlass
6.6L V8 400ci
1971–1974
Oldsmobile Cutlass
5.7L V8 350ci
1972
Oldsmobile Cutlass
5.7L V8 350ci
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Key Features
Breaking in an engine with ceramic coated headers WILL result in damage to the coating and will VOID all warranties. Ceramic coated headers require several heat cycles to fully cure before they will withstand extreme heat. Flowtech recommends using cast i
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.
Fits 1968-1974 Oldsmobile Cutlass (not Supreme)/442 350-403ci Standard Headers Primary Tube Collector Size 1.75 in. x 3 in.
- 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
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About this product
Fits 1968-1974 Oldsmobile Cutlass (not Supreme)/442 350-403ci Standard Headers Primary Tube Collector Size 1.75 in. x 3 in.
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Product Specifications
Air Injection Tubes
No
Automotive Item Grade
Performance
Bolt Size
3/8-16 x 3/4
Bolts Included
Yes
Brand
Flowtech Exhaust
California Proposition 65 Chemical Name
1
California Proposition 65 Required
Yes
California Proposition 65
Yes
CARB (California) Compliant
No
Catalytic Converter Quantity
0
Category
Exhaust
Collector Attachment
3-Bolt Flange
Collector Diameter
3.00
Collector Port Diameter
3.00
Collector Reducer Included
Yes
Collector Reducer Outlet Diameter
2.50
Color
Silver
Design
Long Tube
Drive
2WD
Drive
4WD
EGT Port
No
Emission Code
4
Finish
Ceramic Coated
Flange Thickness
0.3125
Flange Thickness
5/16
Gasket Or Seal Included
Yes
Header Series
Flowtech II
Header Style
Long Tube
Material
Mild Steel
Mounting Hardware Included
Yes
Oxygen Sensor Port
No
Part Type
Exhaust Header
Port Shape
Rectangle
Primary Tubing Diameter
1 3/4
Primary Tubing Diameter
1.75
Product Type
Headers
Prop 65 Yes/No
Yes
Quantity
Sold as a pair
Sub Category
Exhaust Manifolds
Tube Wall Thickness
16
Warning
California Proposition 65
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Warranty & Compliance
Warranty
Manufacturer's Limited 90 Day Warranty
Country of Origin
CN
⚠ Prop 65 Warning
Yes
1
Emissions Code
4
HS Code
8708925000
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Dimensions & Shipping
Product Dimensions
41.8 × 18.1 × 14.0 in
Shipping Dimensions
41.8 × 18.1 × 14.0 in
Weight
15263 g (15.26 kg)