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JBA 87-91 Chevrolet Blazer 5.0L/5.7L w/o A.I.R. 1-5/8in Primary Raw 409SS Cat4Ward Header

SKU: JBA1830S-4

Headers

JBA Cat4Ward Headers...

JBA 87-91 Chevrolet Blazer 5.0L/5.7L w/o A.I.R. 1-5/8in Primary Raw 409SS Cat4Ward Header
Jba

Jba

JBA 87-91 Chevrolet Blazer 5.0L/5.7L w/o A.I.R. 1-5/8in Primary Raw 409SS Cat4Ward Header

SKU: JBA1830S-4

Headers

JBA Cat4Ward Headers...

A$1,354.68
Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.
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Description

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.

Part Type

Headers

Data: v4.2 - Upd: 2026-10-13 16:55:32

Features

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

Specifications

Product Attributes - Brand
JBA Performance Exhaust
Product Attributes - Manufacturer's Part Number
1830S-4
Product Attributes - Part Type
Headers
Product Attributes - Product Line
JBA Performance Exhaust Cat4ward Headers
Product Attributes - UPC
694342527006
Product Attributes - Header Style
Shorty
Product Attributes - Header Material
409 stainless steel
Product Attributes - Primary Tube Outside Diameter (in.)
1 5/8 in.
Product Attributes - Header Color
Natural
Product Attributes - Flange Style
Standard
Product Attributes - Weld-Up
No
Product Attributes - Collector Attachment
Ball and socket flange
Product Attributes - Collector Diameter (in.)
2.50
Product Attributes - Collector Reducers Included
No
Product Attributes - Tuned
No
Product Attributes - Primary Tube Gauge
16-gauge
Product Attributes - Spark Plug Position
Angle/Straight
Product Attributes - Flange Thickness (in.)
0.38 in.
Product Attributes - Bolts/Studs Included
Yes
Product Attributes - Gaskets Included
Yes
Product Attributes - Crossover Pipe Included
No
Product Attributes - Catalytic Converter(s) Included
No
Product Attributes - Motor Mounts Included
No
Product Attributes - Transmission Mount Included
No
Product Attributes - Quantity
Sold as a pair.
Product Attributes - Notes
Fits models without air injection. C.A.R.B. applies to GM Trucks, Blazers and Suburbans with carbureted 305/350 V-8.
Product Attributes - CARB EO Number(s)
D-57-33
Product Attributes - Emissions
California EO Approved

Reference Information

Brand Name/s Jba
StreetFX SKU jba1830S-4
SFX Item ID 4071829
Supplier Item Code 4071829
Manufacturer SKU 1830S-4
Manufacturer UPC 694342527006
Alternative References cat4ward, 5.0L/5.7L, 1-5/8in, 409SS

Brochures

Compatibility

Application Data
  • MakeGMC
    ModelJIMMY
    SubmodelSIERRA CLASSIC
    Beginning Year1988
    Ending Year1990
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size4.3L/265
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes10 - Spark plug boots are changed from stock. 16 - JBA Cat4ward Shorty, direct replacement for factory manifold, installation hardware kit included.
  • MakeGMC
    ModelJIMMY
    SubmodelSIERRA CLASSIC
    Beginning Year1988
    Ending Year1990
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.7L/350
    Drivetrain4WD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes10 - Spark plug boots are changed from stock. 16 - JBA Cat4ward Shorty, direct replacement for factory manifold, installation hardware kit included.
  • MakeGMC
    ModelJIMMY
    SubmodelSIERRA CLASSIC
    Beginning Year1988
    Ending Year1990
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.7L/350
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes10 - Spark plug boots are changed from stock. 16 - JBA Cat4ward Shorty, direct replacement for factory manifold, installation hardware kit included.
  • MakeGMC
    ModelJIMMY
    SubmodelSIERRA CLASSIC
    Beginning Year1988
    Ending Year1990
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size4.4L/267
    Drivetrain4WD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes10 - Spark plug boots are changed from stock. 16 - JBA Cat4ward Shorty, direct replacement for factory manifold, installation hardware kit included.
  • MakeGMC
    ModelJIMMY
    SubmodelSIERRA CLASSIC
    Beginning Year1988
    Ending Year1990
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size6.6L/400
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes10 - Spark plug boots are changed from stock. 16 - JBA Cat4ward Shorty, direct replacement for factory manifold, installation hardware kit included.
  • MakeGMC
    ModelJIMMY
    SubmodelSIERRA CLASSIC
    Beginning Year1988
    Ending Year1991
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size4.6L/283
    Drivetrain4WD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes10 - Spark plug boots are changed from stock. 16 - JBA Cat4ward Shorty, direct replacement for factory manifold, installation hardware kit included.
  • MakeGMC
    ModelJIMMY
    SubmodelSIERRA CLASSIC
    Beginning Year1988
    Ending Year1991
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size4.9L/302
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes10 - Spark plug boots are changed from stock. 16 - JBA Cat4ward Shorty, direct replacement for factory manifold, installation hardware kit included.
  • MakeGMC
    ModelJIMMY
    SubmodelSIERRA CLASSIC
    Beginning Year1988
    Ending Year1991
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size4.9L/302
    Drivetrain4WD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes10 - Spark plug boots are changed from stock. 16 - JBA Cat4ward Shorty, direct replacement for factory manifold, installation hardware kit included.
  • MakeGMC
    ModelJIMMY
    SubmodelSIERRA CLASSIC
    Beginning Year1988
    Ending Year1991
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes10 - Spark plug boots are changed from stock. 16 - JBA Cat4ward Shorty, direct replacement for factory manifold, installation hardware kit included.
  • MakeGMC
    ModelJIMMY
    SubmodelSIERRA CLASSIC
    Beginning Year1987
    Ending Year1991
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
    Drivetrain4WD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes10 - Spark plug boots are changed from stock. 16 - JBA Cat4ward Shorty, direct replacement for factory manifold, installation hardware kit included.
  • MakeGMC
    ModelJIMMY
    SubmodelSIERRA CLASSIC
    Beginning Year1987
    Ending Year1991
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/307
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes10 - Spark plug boots are changed from stock. 16 - JBA Cat4ward Shorty, direct replacement for factory manifold, installation hardware kit included.
  • MakeGMC
    ModelJIMMY
    SubmodelSIERRA CLASSIC
    Beginning Year1987
    Ending Year1991
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/307
    Drivetrain4WD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes10 - Spark plug boots are changed from stock. 16 - JBA Cat4ward Shorty, direct replacement for factory manifold, installation hardware kit included.
  • MakeGMC
    ModelJIMMY
    SubmodelSIERRA CLASSIC
    Beginning Year1987
    Ending Year1991
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.3L/327
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes10 - Spark plug boots are changed from stock. 16 - JBA Cat4ward Shorty, direct replacement for factory manifold, installation hardware kit included.
  • MakeGMC
    ModelJIMMY
    SubmodelSIERRA CLASSIC
    Beginning Year1987
    Ending Year1991
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.3L/327
    Drivetrain4WD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes10 - Spark plug boots are changed from stock. 16 - JBA Cat4ward Shorty, direct replacement for factory manifold, installation hardware kit included.
  • MakeGMC
    ModelJIMMY
    SubmodelSIERRA CLASSIC
    Beginning Year1987
    Ending Year1991
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.4L/327
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes10 - Spark plug boots are changed from stock. 16 - JBA Cat4ward Shorty, direct replacement for factory manifold, installation hardware kit included.
  • MakeGMC
    ModelJIMMY
    SubmodelSIERRA CLASSIC
    Beginning Year1987
    Ending Year1991
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.4L/327
    Drivetrain4WD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes10 - Spark plug boots are changed from stock. 16 - JBA Cat4ward Shorty, direct replacement for factory manifold, installation hardware kit included.
  • MakeGMC
    ModelJIMMY
    SubmodelSIERRA CLASSIC
    Beginning Year1987
    Ending Year1991
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size6.6L/400
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes10 - Spark plug boots are changed from stock. 16 - JBA Cat4ward Shorty, direct replacement for factory manifold, installation hardware kit included.
  • MakeGMC
    ModelJIMMY
    SubmodelSIERRA CLASSIC
    Beginning Year1987
    Ending Year1991
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size6.6L/400
    Drivetrain4WD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes10 - Spark plug boots are changed from stock. 16 - JBA Cat4ward Shorty, direct replacement for factory manifold, installation hardware kit included.
  • MakeGMC
    ModelJIMMY
    SubmodelSIERRA CLASSIC
    Beginning Year1987
    Ending Year1990
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.4L/327
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes10 - Spark plug boots are changed from stock. 16 - JBA Cat4ward Shorty, direct replacement for factory manifold, installation hardware kit included.
  • MakeGMC
    ModelJIMMY
    SubmodelSIERRA CLASSIC
    Beginning Year1987
    Ending Year1990
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size4.3L/265
    Drivetrain4WD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes10 - Spark plug boots are changed from stock. 16 - JBA Cat4ward Shorty, direct replacement for factory manifold, installation hardware kit included.
  • MakeGMC
    ModelJIMMY
    SubmodelSIERRA CLASSIC
    Beginning Year1987
    Ending Year1990
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size4.6L/283
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes10 - Spark plug boots are changed from stock. 16 - JBA Cat4ward Shorty, direct replacement for factory manifold, installation hardware kit included.
  • MakeGMC
    ModelJIMMY
    SubmodelSIERRA CLASSIC
    Beginning Year1987
    Ending Year1990
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size4.6L/283
    Drivetrain4WD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes10 - Spark plug boots are changed from stock. 16 - JBA Cat4ward Shorty, direct replacement for factory manifold, installation hardware kit included.
  • MakeGMC
    ModelJIMMY
    SubmodelSIERRA CLASSIC
    Beginning Year1987
    Ending Year1990
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size6.6L/400
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes10 - Spark plug boots are changed from stock. 16 - JBA Cat4ward Shorty, direct replacement for factory manifold, installation hardware kit included.
  • MakeGMC
    ModelJIMMY
    SubmodelSIERRA CLASSIC
    Beginning Year1987
    Ending Year1990
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/307
    Drivetrain4WD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes10 - Spark plug boots are changed from stock. 16 - JBA Cat4ward Shorty, direct replacement for factory manifold, installation hardware kit included.
  • MakeGMC
    ModelJIMMY
    SubmodelSIERRA CLASSIC
    Beginning Year1987
    Ending Year1990
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.4L/327
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes10 - Spark plug boots are changed from stock. 16 - JBA Cat4ward Shorty, direct replacement for factory manifold, installation hardware kit included.

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