Flowtech Exhaust

Flowtech Long Tube Header - Ceramic Coated

Part # 31112FLT

1 Review

1955-1957 Chevy: 265-400, Tube Size 1.625", Collector Size 3", Port Shape: Round Port, Will Not Fit Convertible Models

Free Shipping - Lower 48 US States

In Stock

Advertised Price $559.95

$502.95

Save $57.00

Does it fit my vehicle?Does it fit my engine?

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.

Features:

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

Air Injection Tubes	No
Bolt Size	3/8-16 x 3/4 IN
Bolts Included	Yes
Brand	Flowtech Exhaust
California Proposition 65	Yes
CARB (California) Compliant	No
Catalytic Converter Quantity	0
Category	Exhaust
Collector Attachment	3-Bolt Flange
Collector Diameter	3.00 IN
Collector Port Diameter	3.00 IN
Collector Reducer Included	Yes
Collector Reducer Outlet Dia.	2.50 IN
Color	Silver
Design	Long Tube
Drive	2WD
EGT Port	No
Emission Code	4
Engine	Chevrolet Small Block Gen I
Finish	Ceramic Coated
Flange Thickness	0.3125 IN
	0.375 IN
	3/8 IN
	5/16 IN
Gasket Or Seal Included	Yes
Grade Type	Performance
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 IN
	1.625 IN
Product Type	Headers
Quantity	Sold as a Pair
Sub Category	Exhaust Manifolds
Tube Wall Thickness	16 GU
UPC	787480311122
Part Number	31112FLT

This part is legal for sale or use on Racing Use Only Vehicles

The following vehicles are considered Racing Use Only Vehicles:

Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street.

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

Instructions - 11112-3901fltrev.pdf

Do not use header wraps; they can cause header tube cracking from excessive heat or rust from moisture build-up and void the warranty. Breaking in an engine with ceramic-coated headers can damage the coating and void the warranty. Use cast-iron exhaust manifolds or old headers during engine break-in to prevent coating damage. Ceramic-coated headers require several heat cycles to fully cure before withstanding extreme heat. Please call Flowtech Technical Service at 270-781-9741 for additional information regarding ceramic-coated exhaust products.

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Great Headers

By Jeff C on February 3, 2021

Got these for my 57 Bel Air. The fit perfect and look/sound great. The coating is holding up after 2 years of mild use of the car. I like these, and Flow-Tech offers a collector with a welded in bung for O2 sensors that was a perfect match for these headers and my Holley Sniper. I recommend these....

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*Free Shipping and Handling only offered to the contiguous US on orders over $149, excludes clearance parts and oversized packages.

Some parts are not legal for use in California or other states with similar regulations.

Flowtech Long Tube Header - Ceramic Coated

Advertised Price $559.95

$502.95

Save $57.00

Flowtech Long Tube Header - Ceramic Coated

Flowtech Long Tube Header - Ceramic Coated

Features:

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