Hedman Hedders 69390 88-95 GM Truck Headers, Uncoated

#41869390

Hedman Hedders 69390 88-95 GM Truck Headers, Uncoated

Standard Uncoated Headers
1-3/4 In. Tube Dia.
3 In. Coll.

$364.99

Factory Shipped

Quantity

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Product Summary

Long Tube Header Tube Type, Round Exhaust Port Shape

Standard Uncoated Headers
1-3/4 In. Tube Dia.
3 In. Coll.
Full Length Design

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Key Specs

MFG. Part #	69390
Header Tube Type	Long Tube
Exhaust Port Shape	Round
Flange Style	Standard
Primary Tube Diameter	1-3/4"

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Hedman Hedders 69390 Details

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 Big Block 7.4L Chevy exhaust system to bolt up, even if it is not perfectly aligned with the header collectors.

These uncoated, LONG-TUBE headers fit 1988-95 4WD (only) 3/4 and 1 ton Chevy Trucks with a factory 7.4L Chevy powerplant (check the application listings for exact fitment). The smooth 1-3/4 in. tube design provides ample exhaust flow to let your OBS Chevy truck's Big Block 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 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.

Features

Standard Uncoated Headers
1-3/4 In. Tube Dia.
3 In. Coll.
Full Length Design

Application

1994-1995 Chevrolet K2500 Base 7.4 Liter Naturally Aspirated GAS
1994-1995 Chevrolet K2500 Base CID 454 Naturally Aspirated GAS
1991-1993 Chevrolet K2500 Cheyenne 7.4 Liter Naturally Aspirated GAS
1991-1993 Chevrolet K2500 Cheyenne CID 454 Naturally Aspirated GAS
1994-1995 Chevrolet K3500 Base 7.4 Liter Naturally Aspirated GAS
1994-1995 Chevrolet K3500 Base CID 454 Naturally Aspirated GAS
1988-1993 Chevrolet K3500 Cheyenne 7.4 Liter Naturally Aspirated GAS
1988-1993 Chevrolet K3500 Cheyenne CID 454 Naturally Aspirated GAS
1991-1993 GMC K2500 Sierra 7.4 Liter Naturally Aspirated GAS
1991-1993 GMC K2500 Sierra CID 454 Naturally Aspirated GAS
1994-1995 GMC K2500 Sierra SL 7.4 Liter Naturally Aspirated GAS
1994-1995 GMC K2500 Sierra SL CID 454 Naturally Aspirated GAS
1988-1993 GMC K3500 Sierra 7.4 Liter Naturally Aspirated GAS
1988-1993 GMC K3500 Sierra CID 454 Naturally Aspirated GAS
1994-1995 GMC K3500 Sierra SL 7.4 Liter Naturally Aspirated GAS
1994-1995 GMC K3500 Sierra SL CID 454 Naturally Aspirated GAS

Specs

Manufacturer Specs:

TUBE DIAMETER	1-3/4 in.
TUBE STYLE	Long Tubes
AIR CONDITIONING	Yes
AUTOMATIC TRANSMISSION - COLUMN	Yes
AUTOMATIC TRANSMISSION - FLOOR	No
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, gaskets (when applicable), 3-bolt exhaust adapters, hardware
FINISH	Uncoated
FINISH TYPE	UNCOATED Mild Steel! Shipped with Temporary Paint.
FLANGE STYLE	Standard
FLANGE THICKNESS	0.3125 in.
HEADER STYLE	Long Tube
NOTES	88-95 GM 1/2, 3/4, 1 Ton Truck/SUV 396-502
MATERIAL	Mild Steel
TUBE DESIGN	Standard
TUBE LENGTH	Long 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	Uncoated
CYLINDER HEAD PORT SHAPE	Round
CYLINDER HEAD	Stock Profile Heads
HEADER CONSTRUCTION	MILD STEEL- Standard-Duty
REPLACEMENT GASKET	41827500
REPLACEMENT HEAD FLANGE GASKET	41827500
HEADER PORT SHAPE	Round Port
PORT SHAPE	Round
COLLECTOR BOLTS INCLUDED	Yes
O2 PROVISION	127. Late Model Chassis. ENGINE OFFSET to passenger side of vehicle.

Guides & Documents

Headers Installation Instructions (41869390)

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 Prop 65

CARB warning

Hedman Hedders 69390 Specifications

KEY SPECS
MFG. Part #	69390
Brand	Hedman Hedders
Header Tube Type	Long Tube
Exhaust Port Shape	Round
Flange Style	Standard
Primary Tube Diameter	1-3/4"
Material Type	Mild Steel
Color	Natural
Weld-Up	No
Collector Diameter	3 Inch
Finish	Uncoated
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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Fitment

1970-1975 Chevy Bel Air

454 Chevy Big Block V8

1970-1972 Chevy Biscayne

454 Chevy Big Block V8

1970-1972 Chevy Brookwood

454 Chevy Big Block V8

1973-1979 Chevy C10

454 Chevy Big Block V8

1973-1979 Chevy C10 Suburban

454 Chevy Big Block V8

1988 Chevy C15

454 Chevy Big Block V8

1990 Chevy C1500

454 Chevy Big Block V8

1991 Chevy C1500

Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Mark IV 454 LS5

1992-1993 Chevy C1500

454 Chevy Big Block V8

1973-1987 Chevy C20

454 Chevy Big Block V8

1973-1986 Chevy C20 Suburban

454 Chevy Big Block V8

1991 Chevy C2500

Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19

1992-1995 Chevy C2500

454 Chevy Big Block V8

1996-1997 Chevy C2500

Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454

1992-1995 Chevy C2500 Suburban

454 Chevy Big Block V8

1996-1997 Chevy C2500 Suburban

Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454

1973-1986 Chevy C30

454 Chevy Big Block V8

1988-1990 Chevy C3500

454 Chevy Big Block V8

1991 Chevy C3500

Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19

1992-1995 Chevy C3500

454 Chevy Big Block V8

1996-1997 Chevy C3500

Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454

1970-1976 Chevy Caprice

454 Chevy Big Block V8

1970-1973 Chevy Chevelle

454 Chevy Big Block V8

1970-1974 Chevy Corvette

454 Chevy Big Block V8

1970-1975 Chevy El Camino

454 Chevy Big Block V8

1970 Chevy Estate

454 Chevy Big Block V8

1996-2000 Chevy Express 2500

Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454

1996-2000 Chevy Express 3500

Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454

1988-1990 Chevy G30

454 Chevy Big Block V8

1991 Chevy G30

Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19

1992-1995 Chevy G30

454 Chevy Big Block V8

1996 Chevy G30

Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454

1970-1976 Chevy Impala

454 Chevy Big Block V8

1973-1974 Chevy K10

454 Chevy Big Block V8

1973-1974 Chevy K10 Suburban

454 Chevy Big Block V8

1973-1974 Chevy K20

454 Chevy Big Block V8

1973-1974 Chevy K20 Suburban

454 Chevy Big Block V8

1985 Chevy K20 Suburban

454 Chevy Big Block V8

1991 Chevy K2500

Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19

1992-1995 Chevy K2500

454 Chevy Big Block V8

1996-1997 Chevy K2500

Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454

1992-1995 Chevy K2500 Suburban

454 Chevy Big Block V8

1996-1997 Chevy K2500 Suburban

Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454

1977-1986 Chevy K30

454 Chevy Big Block V8

1988-1990 Chevy K3500

454 Chevy Big Block V8

1991 Chevy K3500

Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19

1992-1995 Chevy K3500

454 Chevy Big Block V8

1996-1997 Chevy K3500

Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454

1970-1972 Chevy Kingswood

454 Chevy Big Block V8

1973-1975 Chevy Laguna

454 Chevy Big Block V8

1973-1975 Chevy Malibu

454 Chevy Big Block V8

1970-1975 Chevy Monte Carlo

454 Chevy Big Block V8

1975-1990 Chevy P30

454 Chevy Big Block V8

1991 Chevy P30

Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Mark IV 454 LS5

1992-1995 Chevy P30

454 Chevy Big Block V8

1996-1997 Chevy P30

Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454

1973-1974 Chevy P30 Van

454 Chevy Big Block V8

1987-1988 Chevy R20

454 Chevy Big Block V8

1987-1988 Chevy R20 Suburban

454 Chevy Big Block V8

1989 Chevy R2500

454 Chevy Big Block V8

1989-1990 Chevy R2500 Suburban

454 Chevy Big Block V8

1991 Chevy R2500 Suburban

Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19

1987-1988 Chevy R30

454 Chevy Big Block V8

1989-1990 Chevy R3500

454 Chevy Big Block V8

1991 Chevy R3500

Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19

1970-1972 Chevy Townsman

454 Chevy Big Block V8

1987-1988 Chevy V20 Suburban

454 Chevy Big Block V8

1990 Chevy V2500 Suburban

454 Chevy Big Block V8

1987-1988 Chevy V30

454 Chevy Big Block V8

1989-1990 Chevy V3500

454 Chevy Big Block V8

1991 Chevy V3500

Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19

1975-1978 GMC C15

454 Chevy Big Block V8

1975-1978 GMC C15 Suburban

454 Chevy Big Block V8

1973-1974 GMC C15/C1500 Pickup

454 Chevy Big Block V8

1973-1974 GMC C15/C1500 Suburban

454 Chevy Big Block V8

1979 GMC C1500

454 Chevy Big Block V8

1979 GMC C1500 Suburban

454 Chevy Big Block V8

1975-1978 GMC C25

454 Chevy Big Block V8

1975-1978 GMC C25 Suburban

454 Chevy Big Block V8

1973-1974 GMC C25/C2500 Pickup

454 Chevy Big Block V8

1973-1974 GMC C25/C2500 Suburban

454 Chevy Big Block V8

1979-1986 GMC C2500

454 Chevy Big Block V8

1988-1990 GMC C2500

454 Chevy Big Block V8

1991 GMC C2500

Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19

1992-1995 GMC C2500

454 Chevy Big Block V8

1996-2000 GMC C2500

Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454

1979-1986 GMC C2500 Suburban

454 Chevy Big Block V8

1992-1995 GMC C2500 Suburban

454 Chevy Big Block V8

1996-1999 GMC C2500 Suburban

Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454

1975-1978 GMC C35

454 Chevy Big Block V8

1979-1986 GMC C3500

454 Chevy Big Block V8

1988-1990 GMC C3500

454 Chevy Big Block V8

1991 GMC C3500

Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19

1992-1995 GMC C3500

454 Chevy Big Block V8

1996-2000 GMC C3500

Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454

1994-1999 GMC K2500 Suburban

Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454

1977-1978 GMC K35

454 Chevy Big Block V8

1979-1986 GMC K3500

454 Chevy Big Block V8

1988-1990 GMC K3500

454 Chevy Big Block V8

1991 GMC K3500

Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19

1992-1995 GMC K3500

454 Chevy Big Block V8

1996-2000 GMC K3500

Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454

1987-1989 GMC R2500

454 Chevy Big Block V8

1987-1990 GMC R2500 Suburban

454 Chevy Big Block V8

1991 GMC R2500 Suburban

Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19

1987-1990 GMC R3500

454 Chevy Big Block V8

1991 GMC R3500

Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19

1996-2000 GMC Savana 2500

Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454

1996-2000 GMC Savana 3500

Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454

1971-1977 GMC Sprint

454 Chevy Big Block V8