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1994 GMC Jimmy Exhaust Header Hedman

4.5 on 20 ratings
  • Features:
    • Handcrafted, Mild Steel Construction.
    • The Mid-Length Tube Header Design Provides Significantly More Low and Mid-range Power than Cast Manifolds, and Provide Better Ground Clearance And Component Compatibility Than Long Tube Headers.
    • Ball & Socket Collector Design requires No Gasket, and Allows For More Exhaust System Misalignment than Old School, Gasket-Style Header Collectors
    • Includes All The Necessary Mounting Hardware, Gaskets and Reducers (exhaust adapters)
    • Limted Lifetime Warranty On Construction, Five Year Warranty on Factory-Applied Header Coating!
    • Proud To Say, Made In The USA, Since 1954!

  • Hedman Hedders has been manufacturing quality headers in the USA since 1954, and they've been manufacturing Chevy S10, GMC S15, V8 engine swap specific headers for over 20 years. Each set uses mild steel, smooth flowing, CNC mandrel bent tubes, that are hand-welded to ensure each pair is identical to the next. Hedman's unique, gasketless ball and socket collector design allows your Small Block Chevy exhaust system to bolt up, even if it is not perfectly aligned with the header collectors.

    These uncoated, MID-LENGTH TUBE headers are designed specifically for installing a Small Block Chevy 283-400 (Gen 1) engine into 1982-2004 Chevy S10/Blazer, GMC S15/Jimmy 2WD trucks. Fits both manual and automatic transmission trucks. The smooth 1-1/2 in. tube design provides ample exhaust flow to let your transplanted 283-400 SB Chevy engine breathe easy, and produce additional horsepower and torque over factory manifolds.

    To ensure a proper installation, it is recommended that these headers be installed with Trans-Dapt Performance Product's #9906 engine swap mount kit.

    These headers are uncoated, and ship from the factory with a temporary black paint that will burn off when submitted to normal operating temperatures. For protection against the element and lower underhood temperatures, these headers are also available with a silver or black ceramic-metallic finish.

    Each set includes a pair of gaskets, header flange bolts and collector bolts. No collector gasket is needed.

    Hedman Hedders is so confident in the quality of its headers that these headers are factory backed by a Limited Lifetime Warranty.


Additional Fitment Information:
Vehicle Region Fuel Type Drive Type
1994 GMC Jimmy United States GAS RWD
Brand Hedman
Part # 69520
Condition New
Hedman

Jimmy Hedman Exhaust Header 69520 1994 GMC
  • Uncoated Headers; 1-1/2 in. Tube Dia; 2-1/2 in. Coll; Stock Head; MID-LENGTH
  • Air Conditioning: Yes Power Steering: Yes Auto Transmission - Column: No Auto Transmission - Floor: Yes Manual Transmission - Column: No Manual Transmission - Floor: Yes Footnotes: (229) Engine Swap Headers. Emissions Notes: RACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles. Engine Family: SB Chevy 283-400 (Gen 1) Contents:headers, gaskets (when applicable), 3-bolt exhaust adapters, hardware Drivetrain:2WD Only! Y-Pipe Included:No with EGR:No with A.I.R. System:No Package Contents:Set of Headers, mounting hardware and gaskets Installation Hardware Included:Yes Replacement Gasket:27500 Cylinder Head:Stock Profile Heads Quantity:Sold as a pair. Motor Mounts Included:No Crossover Pipe Included:No Catalytic Converter(s) Included:No Collector Bolts Included:Yes Catalog Code:HED Weld-Up:No Tuned:No Primary Tube Gauge:18g Primary Tube Diameter (in):1.50 in. Mounting Hardware Included:Yes Header Material:Mild Steel Header Finish:Uncoated Cylinder Head Port Shape:Round Variations:69526, 69528 Tube Style:Mid-Length Tube Size:1-1/2 in. Tube Material Thickness:18g Tube Length:Mid-Length Tubes Tube Diameter:1-1/2 in. Reducer Outlet Size:2-1/2 in. Power Steering:Yes Port Shape:Round Material:Mild Steel Manual Transmission - Floor:Yes Manual Transmission - Column:No Key Feature:2WD Only. Header Port Shape:Round Replacement Head Flange Gasket:27500 Flange Style:Standard Finish Type:Uncoated Mild steel Finish:Uncoated Exhaust System Dia:2-1/2 in. Title:HEDMAN HEDDERS STANDARD UNCOATED HEADERS; 1-1/2 IN. TUBE DIA.; 2-1/2 IN. COLL.; STOCK HEADS; SHORTY DESIGN Collector Style:Ball and Socket Style (Gasketless) Collector Size:2-1/2 in. Automatic Transmission - Floor:Yes Automatic Transmission - Column:No Air Conditioning:Yes Reducers Included:Yes Header Style:Mid-Length Tube Gasket Or Seal Included:Yes Collector Attachment:2-1/2 in. Flange Thickness:0.25 in. Bolts/Studs Included:Yes Use With:Transmission Dapt. Motor Mount Kit #9906 Header Construction:Standard-Duty E.O. #:No California Proposition 65:WARNING: Cancer. For more info visit www.P65Warnings.ca.gov Emissions Notes:NOT LEGAL FOR STREET USE ON '75-LATER MODEL YEARS! Legal for off-road use only. Collector Diameter:2-1/2 in. Notes :82-00 GM S10/15, Blazer, Jimmy, Sonoma 2WD SBC Tube Design:MID-LENGTH Engine:Chevy SB 283-400 (Gen 1) 1958-86 Head Type:Factory Heads
  • Standard Uncoated Headers; 1-1/2 in. Tube Dia.; 2-1/2 in. Coll.; Stock Heads; MID-LENGTH Design

    • General

    California Proposition 65
    Warning: Cancer. For More Info Visit Www.p65warnings.ca.gov
    Header Port Shape
    Round
    Quantity
    Sold As A Pair.
    with A.I.R. System
    No
    Cylinder Head
    Stock Profile Heads
    Tuned
    No
    Cylinder Head Port Shape
    Round
    Header Style
    Mid-length Tube
    Manual Transmission - Column
    No
    Flange Style
    Standard
    Collector Bolts Included
    Yes
    Bolts/Studs Included
    Yes
    Automatic Transmission - Floor
    Yes
    with EGR
    No
    Tube Material Thickness
    • 16g
    • 18g
    Tube Diameter
    1-1/2 In.
    Automatic Transmission - Column
    No
    Head Type
    Factory Heads
    Package Contents
    Headers, Ball And Socket Reducers (exhaust Adapters), Gaskets, Mounting Hardware
    Reducer Outlet Size
    2-1/2 In.
    Tube Size
    1-1/2 In.
    Port Shape
    Round
    Tube Length
    Mid-length Tubes
    Manual Transmission - Floor
    Yes
    Collector Diameter
    2-1/2 In.
    Tube Style
    Mid-length
    Variations
    69526, 69528
    Drivetrain
    2wd Only!
    Collector Size
    2-1/2 In.
    Header Finish
    Uncoated
    Mounting Hardware Included
    Yes
    Weld-Up
    No
    Collector Attachment
    2-1/2 In.
    Header Fasteners Included
    Yes
    Use With
    Trans Dapt. Motor Mount Kit #9906
    Y-Pipe Included
    No
    Contents
    Headers, Gaskets (when Applicable), 3-bolt Exhaust Adapters, Hardware
    Finish Type
    Uncoated Mild Steel
    Notes
    82-00 Gm S10/15, Blazer, Jimmy, Sonoma 2wd Sbc
    Motor Mounts Included
    No
    Primary Tube Diameter (in)
    1.50 In.
    Crossover Pipe Included
    No
    Header Construction
    • Mild Steel- Standard-duty
    • Standard-duty
    Replacement Head Flange Gasket
    27500
    Tube Design
    • Mid-length
    • Standard
    Key Feature
    2wd Only.
    Power Steering
    Yes
    E.O. #
    No
    Exhaust System Dia
    2-1/2 In.
    Flange Thickness
    • 0.25 In.
    • 0.3125 In.
    Engine
    Chevy Sb 283-400 (gen 1) 1958-86
    Air Conditioning
    Yes
    Installation Hardware Included
    Yes
    Reducers Included
    Yes
    Primary Tube Gauge
    • 16g
    • 18g
    Header Material
    Mild Steel
    Title
    Hedman Hedders Standard Uncoated Headers; 1-1/2 In. Tube Dia.; 2-1/2 In. Coll.; Stock Heads; Shorty Design
    Catalytic Converter(s) Included
    No
    Replacement Gasket
    27500
    Collector Style
    Ball And Socket Style (gasketless)
    Emissions Notes
    Not Legal For Street Use On '75-later Model Years! Legal For Off-road Use Only.

    Packaging

    bar code
    732611695206
    package quantity
    1
    length
    20.00 in
    width
    13.50 in
    height
    8.25 in
    weight
    19.00 lb
    Information on technical characteristics, the delivery set, the country of manufacture and the appearance of the goods is for reference only and is based on the latest information available at the time of publication.

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