Hedman Hedders - 69490
Headers - Street - 1.625 in Primary - 3 in Collector - Steel - Black Paint - Small Block Chevy - GM Compact SUV / Truck 1982-95 - Pair
Standard Uncoated Engine Swap Hedders; 1-5/8 in. Tube Dia.; 3 in. Coll.; FULL LENGTH Design
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, LONG-TUBE headers are designed specifically for installing a Small Block Chevy 283-400 (Gen 1) engine into 1982-1993 Chevy S10/Blazer, GMC S15/Jimmy trucks. The smooth 1-5/8 in. tube design provides ample exhaust flow to let your 283-400 SB Chevy engine breathe easy, and produce maximum horsepower and torque.
To ensure a proper installation, it is recommended that these headers be installed with Trans-Dapt Performance Product's #4686 engine swap mount kit, Turbo 350 and 168 tooth flywheel.
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.
- Handcrafted, Mild Steel Construction.
- Long Tube, Under Chassis Header Design Provides Excellent Top-End Horsepower and Torque.
- 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!
Air Conditioning: Yes
Automatic Transmission - Column: No
Automatic Transmission - Floor: Yes
Collector Size: 3 in.
Collector Style: BALL and SOCKET Style (Gasketless)
Exhaust System Dia: 2-1/2 in.
Finish: Uncoated
Flange Style: Standard
Replacement Head Flange Gasket: 27500
Header Port Shape: Round
Manual Transmission - Column: No
Manual Transmission - Floor: No
Material: Mild Steel
Oil Filter Compatibility: Use of Trans-Dapt 1122 oil filter relocation kit recommended with these headers
Port Shape: Round
Power Steering: Yes
Reducer Outlet Size: 2-1/2 in.
Transmission Compatibility: For use with TH350 transmission and 168 tooth flywheel.
Tube Diameter: 1-5/8 in.
Tube Length: Long Tubes
Tube Size: 1-5/8 in.
Variations: 69496
Cylinder Head Port Shape: Round
Header Finish: Uncoated
Header Material: Mild Steel
Mounting Hardware Included: Yes
Primary Tube Diameter (in): 1.625 in.
Tuned: No
Weld-Up: No
Collector Bolts Included: Yes
Catalytic Converter(s) Included: No
Crossover Pipe Included: No
Motor Mounts Included: No
Quantity: Sold as a pair.
Cylinder Head: Fits Factory GM Aluminum Angle Plug and Straight Plug Heads.
Replacement Gasket: 27500
Installation Hardware Included: Yes
with A.I.R. System: No
with EGR: No
Y-Pipe Included: No
Collector Attachment: 3 in.
Header Construction: MILD STEEL- Standard-Duty
E.O. #: No
Footnotes: 130. Must use Trans Dapt Motor Mount Kit #4690.
Contents: headers, gaskets (when applicable), 3-bolt exhaust adapters, hardware
Installation Notes: The use of a DELCO-RAMEY #323-255 or Chevrolet #187655 starter may be required.
Notes: Two tubes on each side have slip-fit joints for easier installation.
Engine: Chevy SB 283-400 (Gen 1) 1958-86
Emissions Notes: Not Legal For Street Use on '75-Later Model Years! Legal for off-road use only.
Head Type: Factory Heads
Collector Diameter: 3 in.
Tube Style: Long Tubes
Header Style: Long Tube
Package Contents: Headers, ball and socket reducers (exhaust adapters), gaskets, mounting hardware
Tube Material Thickness: 16g
Primary Tube Gauge: 16g
Flange Thickness: 0.3125 in.
Tube Design: Standard
Header Fasteners Included: Yes
Drivetrain: 2WD Only!
Finish Type: UNCOATED Mild Steel! Shipped with Temporary Paint.
Bolts/Studs Included: Yes
Gasket Or Seal Included: Yes
Reducers Included: Yes
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