Hedman Hedders has been manufacturing quality headers in the USA since 1954, and classic musclecars is their specialty. 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 you to bolt up, even if it is not perfectly aligned with the header collectors.

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

Features

67-87 C10/C20 Trucks With SB Chevy
Standard HTC Coated Hedders
1-3/4" Tube Dia.
3" Coll.
Mid-Length Design

Application

1975-1986 Chevrolet C10 CID 283
1975-1986 Chevrolet C10 CID 327
1975-1986 Chevrolet C10 CID 350
1975-1986 Chevrolet C10 CID 400
1967-1974 Chevrolet C10 Pickup CID 283
1967-1974 Chevrolet C10 Pickup CID 327
1967-1974 Chevrolet C10 Pickup CID 350
1967-1974 Chevrolet C10 Pickup CID 400
1967-1986 Chevrolet C10 Suburban CID 283
1967-1986 Chevrolet C10 Suburban CID 327
1967-1986 Chevrolet C10 Suburban CID 350
1967-1986 Chevrolet C10 Suburban CID 400
1975-1986 Chevrolet C20 CID 283
1975-1986 Chevrolet C20 CID 327
1975-1986 Chevrolet C20 CID 350
1975-1986 Chevrolet C20 CID 400
1967-1974 Chevrolet C20 Pickup CID 283
1967-1974 Chevrolet C20 Pickup CID 327
1967-1974 Chevrolet C20 Pickup CID 350
1967-1974 Chevrolet C20 Pickup CID 400
1967-1986 Chevrolet C20 Suburban CID 283
1967-1986 Chevrolet C20 Suburban CID 327
1967-1986 Chevrolet C20 Suburban CID 350
1967-1986 Chevrolet C20 Suburban CID 400
1975-1986 Chevrolet C30 CID 283
1975-1986 Chevrolet C30 CID 327
1975-1986 Chevrolet C30 CID 350
1975-1986 Chevrolet C30 CID 400
1967-1974 Chevrolet C30 Pickup CID 283
1967-1974 Chevrolet C30 Pickup CID 327
1967-1974 Chevrolet C30 Pickup CID 350
1967-1974 Chevrolet C30 Pickup CID 400
1987 Chevrolet R10 CID 283
1987 Chevrolet R10 CID 327
1987 Chevrolet R10 CID 350
1987 Chevrolet R10 CID 400
1987 Chevrolet R10 Suburban CID 283
1987 Chevrolet R10 Suburban CID 327
1987 Chevrolet R10 Suburban CID 350
1987 Chevrolet R10 Suburban CID 400
1987 Chevrolet R20 CID 283
1987 Chevrolet R20 CID 327
1987 Chevrolet R20 CID 350
1987 Chevrolet R20 CID 400
1987 Chevrolet R20 Suburban CID 283
1987 Chevrolet R20 Suburban CID 327
1987 Chevrolet R20 Suburban CID 350
1987 Chevrolet R20 Suburban CID 400
1987 Chevrolet R30 CID 283
1987 Chevrolet R30 CID 327
1987 Chevrolet R30 CID 350
1987 Chevrolet R30 CID 400
1975-1978 GMC C15 CID 283
1975-1978 GMC C15 CID 327
1975-1978 GMC C15 CID 350 ...See Application Guide for Additional Fitments

Specs

Manufacturer Specs:

TUBE DIAMETER	1-3/4 in.
TUBE STYLE	Mid-Length
AIR CONDITIONING	Yes
AUTOMATIC TRANSMISSION - COLUMN	Yes
AUTOMATIC TRANSMISSION - FLOOR	Yes
MANUAL TRANSMISSION - COLUMN	No
MANUAL TRANSMISSION - FLOOR	Yes
POWER STEERING	Yes
COLLECTOR ATTACHMENT	3 in.
COLLECTOR DIAMETER	3 in.
COLLECTOR SIZE	3 in.
COLLECTOR STYLE	BALL and SOCKET Style (Gasketless)
REDUCER OUTLET SIZE	2-1/2 in.
EXHAUST SYSTEM DIA	2-1/2 in.
CONTENTS	headers, header gaskets, Reducers (exhaust adapters), header and collector bolts
ENGINE	Chevy SB 283-400 (Gen 1) 1958-86
FINISH	HTC Polished Silver Ceramic-Metallic
FINISH TYPE	HTC SILVER (polished) Ceramic-metallic Coating
FLANGE STYLE	Standard
FLANGE THICKNESS	0.3125 in.
HEADER STYLE	Mid-Length Tube
NOTES	67-87 Chev. 1/2, 3/4 Ton Truck 283-400 2WD
MATERIAL	Mild Steel
TUBE DESIGN	Standard
TUBE LENGTH	Mid-Length Tubes
TUBE MATERIAL THICKNESS	16g
TUBE SIZE	1-3/4 in.
WITH AIR SYSTEM	No
WITH EGR	No
EO	No
WELD-UP	No
TUNED	No
BOLTS/STUDS INCLUDED	Yes
CATALYTIC CONVERTERS INCLUDED	No
CROSSOVER PIPE INCLUDED	No
GASKET OR SEAL INCLUDED	Yes
HEADER FASTENERS INCLUDED	Yes
INSTALLATION HARDWARE INCLUDED	Yes
MOTOR MOUNTS INCLUDED	No
MOUNTING HARDWARE INCLUDED	Yes
REDUCERS INCLUDED	Yes
Y-PIPE INCLUDED	No
QUANTITY	Sold as a pair.
PRIMARY TUBE GAUGE	16g
PRIMARY TUBE DIAMETER IN	1.75 in.
PACKAGE CONTENTS	Headers, ball and socket reducers (exhaust adapters), gaskets, mounting hardware
HEADER MATERIAL	Mild Steel
HEADER FINISH	HTC Polished Silver Ceramic-Metallic
CYLINDER HEAD PORT SHAPE	Rectangle
CYLINDER HEAD	Fits Factory GM Aluminum Angle Plug and Straight Plug Heads.
HEADER CONSTRUCTION	MILD STEEL- Standard-Duty
REPLACEMENT GASKET	41827500
REPLACEMENT HEAD FLANGE GASKET	41827500
HEADER PORT SHAPE	Rectangle Port
PORT SHAPE	Rectangle
COLLECTOR BOLTS INCLUDED	Yes
POWER STEERING NOTES	The short, compact design of these headers allows truck builder to raise the exhaust system higher for maximum ground clearance. HTC ceramic-metallic coating to protect against heat and corrosion. Finish also helps lower engine compartment temperatures.
FOOTNOTES	70-Up: LARGE compressor use Hedman 20110; SMALL compressor, modify OE bracket.
CHASSIS COMPATIBILITY	Manual Trans. must Use TailShaft style crossmember or modify factory crossmember
MATERIALS	NOT For Vehicles With Offset (right) Engine Position!
SPECIAL ENGINE NOTES	Mild Steel Construction with HTC. 16g Tubes; 5/16 in. Head Flanges
DRIVETRAIN	Designed for use with the SB Chevy engine located in the factory position.
OXYGEN SENSOR BUNG INCLUDED	Axial-Style A/C Compressor Bracket For Tri-5 Header Installations

Guides & Documents

Headers Installation Instructions (41869026)

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

CA WARNING:

Can expose you to lead, a carcinogen and reproductive toxicant. See www.P65Warnings.ca.gov

CARB warning

Hedman Hedders 69026 Specifications

KEY SPECS
MFG. Part #	69026
Brand	Hedman Hedders
Header Tube Type	Mid-Length
Exhaust Port Shape	Rectangle
Flange Style	Standard
Primary Tube Diameter	1-3/4"
Material Type	Mild Steel
Color	Silver
Weld-Up	No
Collector Diameter	3 Inch
Finish	Polished
Hardware Included	Yes
Gasket(s) Included	Yes
Collector Reducers Included	Yes
Collector Reducer Exit Diameter	2.5"

GENERAL
Sold in Quantity	Set
Collector Length	3"
Flange Thickness	0.3125"
Tuned	No
Crossover Pipe Included	No
Primary Tube Gauge	16-gauge

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