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Product Summary

Chevy Small Block V8, Full-length Header Tube Type

  • Will fit a variety of Chevy Small Block V8 applications (see list)
  • Features a mandrel-formed power plenum and leakproof O-ringed port seals
  • All mounting hardware and gaskets are included for a simple installation.
  • Headers are precision engineered using mandrel bent tubing, formed collectors and 5/16" flanges with sealing rings for a leak-free seal
  • They are coated in a high heat and corrosion resistant metallic ceramic thermal coating that increases exhaust velocity and reduces under hood temps for increased performance

Key Specs

Header Tube TypeFull-length
FinishCeramic Coated
Flange StyleStandard
Primary Tube Diameter1-1/2"
Material TypeSteel

Need To Know

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Flowtech Exhaust 31500FLT 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.

  • 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

Application

66-87 Chevy/GMC 1/2 & 3/4 & 1-Ton 2WD & 4WD
88-91 Chevy/GMC 1-Ton Crew Cab 2WD & 4WD
67-87 Blazer/Jimmy 2WD
66-72 Blazer/Jimmy K5/Suburban 4WD
73-91 Blazer/Jimmy K5/Suburban 2WD & 4WD
283-400
Tube Size 1.5"
Collector Size 3"

Charts

CARB Warning

For race/ off road use only

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

Flowtech Exhaust 31500FLT Specifications

KEY SPECS
MFG. Part #31500FLT
BrandFlowtech Exhaust
Header Tube TypeFull-length
FinishCeramic Coated
Flange StyleStandard
Primary Tube Diameter1-1/2"
Material TypeSteel
ColorSilver
Weld-UpNo
Exhaust Port ShapeRound
Collector Diameter3 Inch
Hardware IncludedYes
Gasket(s) IncludedYes
Collector Attachment Type3-bolt flange
Collector Reducers IncludedYes
Collector Reducer Exit Diameter2.5"
GENERAL
Sold in QuantityPair
Emission Code3
GTIN Code787480315007