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White Box Shorty Headers - Painted - 1-5/8 Inch Primaries - 3 Inch Collector

Fits 1988-1995 5.0/5.7L Chevrolet/GMC Truck 2WD & 4WD 1500/2500/3500 except 1988-1991 1-ton dually models

PART# WB10018

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$133.95   Suggested Retail
$119.95   Your Price
Estimated shipping date: 05/07/2021
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White Box headers are the perfect combination of performance and value. White Box shorty headers are precision engineered using mandrel bent tubing, formed collectors and 5/16 inch thick 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.


  • More horsepower and torque
  • 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 value


BrandWhite Box
Collector Diameter3.00 inch
Emission Code4
EngineChevrolet Small Block
Header FinishBlack Paint
Header StyleShorty
Primary Tube Dia.1-5/8 inch
Product TypeHeaders
Tube MaterialMild Steel
Part NumberWB10018

Service Parts



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

Tech Resources

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 tech service at 270-781-9741 for additional information regarding ceramic coated exhaust products. The use of header wraps can cause the header tubes to crack or rust due to excessive heat and moisture build-up. White Box does not recommend the use of header wraps as this will void the warranty. NOTE: This header is equipped with a fitting to accept an oxygen sensor. Should you choose to install an O2 sensor, completion of the hole bore through the tube wall must be performed by a drill and/or air powered rotary file. Hooker long tube headers do not come with header reducers.


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