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FlowtechPart 31112FLT✓ Fits 15 vehiclesMade in CN
Product Details
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Vehicle Fitment & Compatibility
15 applicationsCompatible Engines
4.3L V8 265ci4.6L V8 283ci5.3L V8 324ci5.3L V8 322ci
Application Notes
with Silver Ceramic Finish1-5/8 inch Tube Diameter, Standard Header, Primary Tube Coll, Size 1 5/8x3 in, Not Legal For Street Use
View all 15 vehicle applications
Years
Make / Model
Submodel
Engine
1955–1957
Chevrolet Bel Air
4.3L V8 265ci
1955–1957
Chevrolet Bel Air
4.3L V8 265ci
1955–1956
Chevrolet Bel Air
4.3L V8 265ci
1957
Chevrolet Bel Air
4.6L V8 283ci
1957
Chevrolet Bel Air
4.6L V8 283ci
1955–1957
Chevrolet One-Fifty Series
4.3L V8 265ci
1957
Chevrolet One-Fifty Series
4.6L V8 283ci
1955–1957
Chevrolet Sedan Delivery
4.3L V8 265ci
1955–1956
Chevrolet Sedan Delivery
5.3L V8 324ci
1956–1957
Chevrolet Sedan Delivery
5.3L V8 322ci
1957
Chevrolet Sedan Delivery
4.6L V8 283ci
1955–1957
Chevrolet Two-Ten Series
4.3L V8 265ci
1955–1957
Chevrolet Two-Ten Series
4.3L V8 265ci
1957
Chevrolet Two-Ten Series
4.6L V8 283ci
1957
Chevrolet Two-Ten Series
4.6L V8 283ci
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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.
1955-1957 Chevy: 265-400, Tube Size 1.625", Collector Size 3", Port Shape: Round Port, Will Not Fit Convertible Models
- 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
1955-1957 Chevy: 265-400, Tube Size 1.625", Collector Size 3", Port Shape: Round Port, Will Not Fit Convertible Models
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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
EGT Port
No
Emission Code
4
Finish
Ceramic Coated
Flange Thickness
0.3125
Flange Thickness
0.375
Flange Thickness
3/8
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
Oval
Primary Tubing Diameter
1 5/8
Primary Tubing Diameter
1.625
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
38.0 × 17.0 × 10.0 in
Shipping Dimensions
38.0 × 17.0 × 10.0 in
Weight
15966 g (15.97 kg)