JBA Exhaust Headers for Chevy GMC Blazer C20 R10 5.7L V8 for 1987-1991 - 1830S-4JS
SKU: 89827050434

JBA Exhaust Headers for Chevy GMC Blazer C20 R10 5.7L V8 for 1987-1991 - 1830S-4JS

Sale price$415.82 Regular price$462.02
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Description

JBA Exhaust Headers for Chevy GMC Blazer C20 R10 5.7L V8 for 1987-1991 - 1830S-4JSOverview: 87 GM PU 87 91 Blzr Cat4Ward 5. 0 5. 7L Silver Ctd JBA shorty headers are one of the foremost performance upgrades you can bestow upon your beloved car, truck, or SUV. JBA Headers are significantly less restrictive than stock manifolds and dramatically increase the power and efficiency of your engine. Each header is constructed from durable stainless steel to endure the abuse of racing, towing, and daily driving built to withstand it all.

Overview:

87 GM PU/87-91 Blzr Cat4Ward® 5.0/5.7L Silver Ctd

JBA shorty headers are one of the foremost performance upgrades you can bestow upon your beloved car, truck, or SUV. JBA Headers are significantly less restrictive than stock manifolds and dramatically increase the power and efficiency of your engine. Each header is constructed from durable stainless steel to endure the abuse of racing, towing, and daily driving – built to withstand it all. JBA’s proprietary Firecone collector design uses race proven technology for producing maximum power and torque gains where you drive most. Each system includes factory style emission connections and high-quality hardware for a professional no-leak installation.

Features:

  • Mandrel bent stainless steel tube
  • Proprietary JBA Firecone collector
  • Factory style emission connections
  • Extra thick collector domes
  • 3/8" thick machined flanges with Oversized exhaust ports
  • Specs:

  • Brand: JBA Performance
  • California Proposition 65: WARNING: This product can expose you to chemicals including chromium, which is know to the State of California to cause cancer or birth defects of other reproductive harm. For more information, visit www.p65warnings.ca.gov
  • CARB EO #: D-57-48
  • Catalytic Converter(s) Included: No
  • Collector Diameter: 2.5
  • Collector Port Diameter: 2.5
  • Collector Reducers Included: No
  • Color: Grey
  • Design: Shorty
  • Finish: Metallic Ceramic Coated
  • Flange Thickness: 46089
  • Gasket Or Seal Included: Yes
  • Gaskets Included: Yes
  • Grade Type: Performance
  • Header Material: 409 Stainless Steel
  • Header Style: Shorty
  • Mounting Hardware Included: Yes
  • Oxygen Sensor Port: Yes
  • Primary Tube Outside Diameter: 1.625
  • Primary Tubing Diameter: 1.625
  • Sheen Level: Semi-Gloss
  • Tube Wall Thickness: 0.059
  • Part Number: 1830S-4JS
  • Applications:

    • 1987-1991 Chevrolet Blazer 350 CID
    • 1987-1987 Chevrolet Blazer 305 CID
    • 1987-1987 Chevrolet C20 350 CID
    • 1987-1987 Chevrolet R10 350 CID
    • 1987-1987 Chevrolet R10 305 CID
    • 1987-1988 Chevrolet R10 Suburban 350 CID
    • 1989-1991 Chevrolet R1500 Suburban 350 CID
    • 1987-1988 Chevrolet R20 350 CID
    • 1987-1988 Chevrolet R20 305 CID
    • 1987-1988 Chevrolet R20 Suburban 350 CID
    • 1989-1991 Chevrolet R2500 Suburban 350 CID
    • 1987-1987 Chevrolet V10 350 CID
    • 1987-1987 Chevrolet V10 305 CID
    • 1987-1988 Chevrolet V10 Suburban 350 CID
    • 1989-1991 Chevrolet V1500 Suburban 350 CID
    • 1987-1987 Chevrolet C35 350 CID
    • 1987-1991 GMC R1500 Suburban 350 CID
    • 1987-1987 GMC R2500 350 CID
    • 1987-1987 GMC R2500 305 CID
    • 1987-1991 GMC R2500 Suburban 350 CID
    • 1987-1991 GMC V1500 Suburban 350 CID
    • 1987-1991 GMC V2500 Suburban 350 CID
    • 1987-1991 GMC Jimmy 350 CID
    • 1987-1987 GMC Jimmy 305 CID
    • 1987-1987 GMC R1500 350 CID
    • 1987-1987 GMC R1500 305 CID
    • 1987-1987 GMC V1500 350 CID
    • 1987-1987 GMC V1500 305 CID
    • 1987-1987 GMC V2500 350 CID
  • Emissions:

    • 1 - This product has been granted a California Air Resources Board (CARB) Executive Order (EO Number) Exemption. It is 50 State Legal when installed on the Specified vehicle per the Manufacturer’s Current Application Guide, the CARB EO, and Installation Instructions.
    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 89827050434

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    Katherine Jakeway
    Draper, US
    ★★★★★ 1
    Screws dont fit
    Color: Beige
    Got the frame set up no problem. Tried to get the legs secured, and the screws dont fit through the leg hole. Without the legs being secure, the divider will not stand up on its own. Total waste of time and money.
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    Reviewed in the United States on April 4, 2026
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    Fan of Pandas
    Pawtucket, US
    ★★★★★ 5
    Price, quality and purpose - all met in highest regards!!!! Love ❤️ it!!!
    Color: Grey
    Awesome!!!
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    Reviewed in the United States on December 19, 2024
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    Marsha Akuna
    Bozeman, US
    ★★★★★ 4
    serves it purpose
    Color: Beige
    If this item could have been adjustable with the height. perfect addition for privacy.
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    Reviewed in the United States on December 26, 2024
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    Visitor
    Lake Worth, US
    ★★★★★ 3
    Window blocker
    Color: Black
    This is a nice blocking items, or to block windows. The worst part is putting it together, not an easy task. Nothing is labeled, it’s like a guessing game, it is still loose and crooked.
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    Reviewed in the United States on August 31, 2025
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    Kysha
    Pawtucket, US
    ★★★★★ 1
    Don’t waste your money please
    Color: Black, Color: Black
    This was the absolute worst. Trying to assemble this was a total headache. None of the pieces seem to match and the end result was just horrible.
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    Reviewed in the United States on April 4, 2026

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