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FlowtechPart 11150FLT✓ 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 Black Paint 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
No applications match your search.
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Key Features
Recommended replacement gasket - Mr. Gasket part# 453 Must modify exhaust system to retain catalytic converters.
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 resistant black paint for a stealthy appearance.
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
- Mandrel-Formed Power Plenum
- Leakproof O-Ringed Port Seals
- Include All Mounting Hardware
- Constructed of .049 cold roll flash mild steel tubing
- Precision engineered for fit, performance and economy
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About this product
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
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 Diameter
3.00 IN
Collector Port Diameter
3.00
Collector Port Diameter
3.00 IN
Collector Reducer Included
Yes
Collector Reducer Outlet Diameter
2.50
Color
Black
Design
Long Tube
Drive
2WD
EGT Port
No
Emission Code
4
Finish
Painted
Flange Thickness
0.3125
Flange Thickness
0.3125 IN
Flange Thickness
5/16
Flange Thickness
5/16" IN
Gasket Or Seal Included
Yes
Grade Type
Performance
Header Series
Flowtech I
Header Style
Long Tube
Material
Mild Steel
Mounting Hardware Included
Yes
Oxygen Sensor Port
No
Part Type
Exhaust Header
Port Shape
Rectangle
Primary Tube Dia.
1-3/4 inch
Primary Tubing Diameter
1 3/4
Primary Tubing Diameter
1-3/4 IN
Primary Tubing Diameter
1.75
Primary Tubing Diameter
1.750 IN
Product Type
Headers
Prop 65 Yes/No
Yes
Quantity
Sold as a Pair
Sheen Level
Satin
Sub Category
Exhaust Manifolds
Tube Wall Thickness
.049 IN
Tube Wall Thickness
18
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
38.0 × 22.7 × 12.1 in
Shipping Dimensions
38.0 × 22.7 × 12.1 in
Weight
17307 g (17.31 kg)