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Flowtech Long Tube Header - Ceramic Coated

1966-1974 Chevy/GMC 1/2 & 3/4 & 1-Ton 2WD & 4WD, 1967-1974 Blazer/Jimmy 2WD, 1966-1972 Blazer/Jimmy K5/Suburban 4WD, 1973-1974 Blazer/Jimmy K5/Suburban 2WD & 4WD: 283-400, Tube Size 1.5", Collector Size 3"

Part # 31500FLT Be the first to write a review

Flowtech Long Tube Header - Ceramic Coated

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Free Shipping - Lower 48 US States
$465.95
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4

Emissions

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.

    See Emissions Details
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
  • Works with power steering and power brakes

About Flowtech

Flowtech provides high-quality performance exhaust systems at a great value. Explore our lineup of headers, mufflers, and exhaust systems at our official retailer, Holley.com!​

Bolt Size3/8-16 x 3/4
Brand Flowtech
CARB (California) CompliantNo
Collector Diameter3.00 inch
Emission Code4
EngineChevrolet Small Block Gen I
Header FinishSilver Ceramic
Header Flange Thickness (in)5/16 inch
Header StyleLong Tube
Primary Tube Dia.1-1/2 inch
Product TypeHeaders
Sale CategoryExhaust
Tube MaterialMild Steel
UPC787480315007
Part Number31500FLT
4

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

Requires Flowtech air conditioning bracket 10042FLT. May require clutch linkage modification. Does not fit with angle plug heads. 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 iron exhaust manifolds or old headers to break in new engines to avoid coating damage. Please call Flowtech tech service at 270-781-9741 for additional information regarding ceramic exhaust products. The use of header wraps can cause the header tubes to crack or rust due to excessive heat and moisture build-up. Flowtech does not recommend the use of header wraps as this will void the warranty.
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    Some parts are not legal for use in California or other states with similar regulations.