Hedman | Long-Tube Clutch Clearance Headers For 67-91 GM 283-400 Truck/SUV

Hedman - Exhaust Header

Description

Hedman Hedders has been manufacturing quality headers in the USA since 1954, and they've been manufacturing LONG and MID-LENGTH tube headers for Chevy trucks for nearly as long. 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 fit a wide range of early to mid-year 1967-1991 2WD & 4WD Chevy/GMC 1/2 Ton and 3/4 ton trucks, Blazers and Suburbans (check the application listings for exact fitment), powered by a Small Block Chevy engine (without A.I.R. system). These headers offer additional clearance to address clutch shaft clearance issues, when the cross shaft is located under, or behind the rear, driver side exhaust port. This The smooth 1-5/8 in. tube design provides ample exhaust flow to let your truck's 283-400 SB Chevy engine breathe easy, and produce maximum horsepower and torque.

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 under hood 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.

Characteristics

• Air Conditioning Notes: Must modify rotary A/C Bracket (121)
• Air Conditioning: Yes
• Automatic Transmission - Column: Yes
• Automatic Transmission - Floor: Yes
• Bolts/Studs Included: Yes
• Catalytic Converter(s) Included: No
• Chassis Compatibility: NOT For Vehicles With Offset (right) Engine Position!
• Collector Attachment: 3 in.
• Collector Bolts Included: Yes
• Collector Diameter: 3 in.
• Collector Size: 3 in.
• Collector Style: BALL and SOCKET Style (Gasketless)
• Contents: headers, gaskets (when applicable), 3-bolt exhaust adapters, hardware
• Crossover Pipe Included: No
• Cylinder Head Port Shape: Round
• Cylinder Head: Fits Factory GM Aluminum Angle Plug Cylinder Head (L98 Profile Only)
• Emissions Notes: Not Legal For Street Use on '75-Later Model Years! Legal for off-road use only.
• Exhaust System Dia: 2-1/2 in.
• Finish Type: UNCOATED Mild Steel! Shipped with Temporary Paint.
• Finish: Uncoated
• Flange Style: Standard
• Flange Thickness: 0.3125 in.
• Gasket Or Seal Included: Yes
• Header Construction: MILD STEEL- Standard-Duty
• Header Fasteners Included: Yes
• Header Finish: Uncoated
• Header Material: Mild Steel
• Header Port Shape: Round
• Header Style: Long Tube
• IMPORTANT!: 4X4, Manual trans. models w/ Hydraulic clutch. Doesn't work with Slave cylinder.
• Installation Hardware Included: Yes
• Manual Transmission - Column: No
• Manual Transmission - Floor: Yes
• Material: Mild Steel
• Motor Mounts Included: No
• Mounting Hardware Included: Yes
• Notes: 67-91 GM. Full Size Blazer, Jimmy 283-400 2-4WD
• Package Contents: Headers, ball and socket reducers (exhaust adapters), gaskets, mounting hardware
• Port Shape: Round
• Power Steering: Yes
• Primary Tube Diameter (in): 1.625 in.
• Primary Tube Gauge: 16g
• Quantity: Sold as a pair.
• Reducer Outlet Size: 2-1/2 in.
• Reducers Included: Yes
• Replacement Gasket: 27500
• Replacement Head Flange Gasket: 27500
• Tube Design: Standard
• Tube Diameter: 1-5/8 in.
• Tube Length: Long Tubes
• Tube Material Thickness: 16g
• Tube Size: 1-5/8 in.
• Tube Style: Long Tubes
• Tuned: No
• Variations: 66092, 69892
• Weld-Up: No
• with A.I.R. System: No
• with EGR: No
• Y-Pipe Included: No

Attributs

• Handcrafted, Mild Steel Construction.
• Long Tube 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!

Note:

• Livraison GRATUITE / FREE Delivery