Description_ASM |
1969-1974 Chevrolet Blazer CID 396 4WD, 1987-1991 Chevrolet Blazer CID 396 4WD, 1969-1974 Chevrolet Blazer CID 396 RWD, 1969-1974 Chevrolet Blazer CID 454 4WD, 1987-1991 Chevrolet Blazer CID 454 4WD, 1969-1974 Chevrolet Blazer CID 454 RWD, 1975-1986 Chevrolet C20 CID 396, 1975-1986 Chevrolet C20 CID 454, 1967 Chevrolet C20 Panel CID 396, 1967 Chevrolet C20 Panel CID 454, 1967-1974 Chevrolet C20 Pickup CID 396, 1967-1974 Chevrolet C20 Pickup CID 454, 1968-1986 Chevrolet C20 Suburban CID 396, 1968-1986 Chevrolet C20 Suburban CID 454, 1988-1991 Chevrolet C2500 CID 396, 1988-1991 Chevrolet C2500 CID 454, 1975-1986 Chevrolet C30 CID 396, 1975-1986 Chevrolet C30 CID 454, 1967-1974 Chevrolet C30 Pickup CID 396, 1967-1974 Chevrolet C30 Pickup CID 454, 1988-1991 Chevrolet C3500 CID 396, 1988-1991 Chevrolet C3500 CID 454, 1975-1986 Chevrolet K10 CID 396, 1975-1986 Chevrolet K10 CID 454, 1968-1974 Chevrolet K10 Pickup CID 396, 1968-1974 Chevrolet K10 Pickup CID 454, 1975-1986 Chevrolet K20 CID 396, 1975-1986 Chevrolet K20 CID 454, 1968-1974 Chevrolet K20 Pickup CID 396, 1968-1974 Chevrolet K20 Pickup CID 454, 1968-1986 Chevrolet K20 Suburban CID 396, 1968-1986 Chevrolet K20 Suburban CID 454, 1988-1991 Chevrolet K2500 CID 396, 1988-1991 Chevrolet K2500 CID 454, 1988-1991 Chevrolet K3500 CID 396, 1988-1991 Chevrolet K3500 CID 454, 1975-1986 Chevrolet K5 Blazer CID 396, 1975-1986 Chevrolet K5 Blazer CID 454, 1987-1988 Chevrolet R20 CID 396, 1987-1988 Chevrolet R20 CID 454, 1987-1988 Chevrolet R20 Suburban CID 396, 1987-1988 Chevrolet R20 Suburban CID 454, 1989 Chevrolet R2500 CID 396, 1989 Chevrolet R2500 CID 454, 1989-1991 Chevrolet R2500 Suburban CID 396, 1989-1991 Chevrolet R2500 Suburban CID 454, 1987-1988 Chevrolet R30 CID 396, 1987-1988 Chevrolet R30 CID 454, 1989-1991 Chevrolet R3500 CID 396, 1989-1991 Chevrolet R3500 CID 454, 1987 Chevrolet V10 CID 396, 1987 Chevrolet V10 CID 454, 1987 Chevrolet V20 CID 396 ...See Application Guide for Additional Fitments |
Description_DEF |
Exhaust Header |
Description_DES |
Standard Uncoated Headers; 1-3/4 in. Tube Dia.; FULL LENGTH Design |
Description_FAB |
Handcrafted, Mild Steel Construction. |
Description_FAB |
Long Tube Header Design Provides Excellent Top-End Horsepower and Torque. |
Description_FAB |
Ball & Socket Collector Design requires No Gasket, and Allows For More Exhaust System Misalignment than Old School, Gasket-Style Header Collectors |
Description_FAB |
Includes All The Necessary Mounting Hardware, Gaskets and Reducers (exhaust adapters) |
Description_FAB |
Limted Lifetime Warranty On Construction, Five Year Warranty on Factory-Applied Header Coating! |
Description_FAB |
Proud To Say, Made In The USA, Since 1954! |
Description_EXT |
Standard-Duty UNCOATED Hedders;1-3/4 in. Tube;3 in. Coll; FULL-LENGTH Design;67-91 1/2 Ton 2WD Truck 396-502; 68-91 3/4 Ton 4WD Truck 396-502;68-95 Chevrolet Class-A Full Size) Motorhome 396-502 ; NOT FOR 1990-93 Chevrolet 454 SS Truck |
Description_INV |
HEDMAN GM TRUCK HEADER-UNCOATED |
Description_SHO |
HEADERS, UNCOATED |
Description_MKT |
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 Chevy exhaust system to bolt up, even if it is not perfectly aligned with the header collectors.
These uncoated, LONG-TUBE headers are one of Hedman's best selling Chevy truck headers. They fit a wide range of early to mid-year 2WD and 4WD Chevy Trucks and SUVs, powered by a Big Block Chevy engine. Included in this header's long list of applications is 1968-1991 Chevy/GMC 1/2 to 1 Ton 2WD, or 1/2 and 3/4 ton 4WD trucks, Blazers and Suburbans (check the application listings for exact fitment). The smooth 1-3/4 in. tube design provides ample exhaust flow to let your truck's 396-502 BB 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 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.
|
Air Conditioning |
Yes |
Automatic Transmission - Column |
Yes |
Automatic Transmission - Floor |
Yes |
Bolts/Studs Included |
Yes |
California Proposition 65 |
WARNING: Cancer. For more info visit www.P65Warnings.ca.gov |
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 |
Stock Profile Heads |
Cylinder Head Port Shape |
Round |
E.O. # |
No |
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 |
Uncoated |
Finish Type |
Uncoated Mild steel |
Flange Style |
Standard |
Flange Thickness |
0.3125 in. |
Footnotes |
265. Not for use on 1990-93 Chevrolet 454 SS 1/2 Ton Truck. |
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 |
Installation Hardware Included |
Yes |
Manual Transmission - Column |
Yes |
Manual Transmission - Floor |
Yes |
Material |
Mild Steel |
Motor Mounts Included |
No |
Mounting Hardware Included |
Yes |
Notes |
68-91 GM Trucks & SUVs 396-502 2 & 4WD |
Package Contents |
Headers, ball and socket reducers (exhaust adapters), gaskets, mounting hardware |
Port Shape |
Round |
Power Steering |
Yes |
Primary Tube Diameter (in) |
1.75 in. |
Primary Tube Gauge |
16g |
Quantity |
Sold as a pair. |
Reducer Outlet Size |
2-1/2 in. |
Reducers Included |
Yes |
Replacement Gasket |
27530 |
Replacement Head Flange Gasket |
27530 |
Title |
HEDMAN HEDDERS STANDARD-DUTY UNCOATED HEADERS;1-3/4 IN. TUBE;3 IN. COLL; FULL-LENGTH DESIGN;67-91 1/2-1 TON 2WD TRUCK 396-502; 68-91 3/4 TON 4WD TRUCK 396-502;68-95 CHEVROLET CLASS A FULL SIZE MOTORHOME 396-502 ; NOT FOR 1990-93 CHEVROLET 454 SS TRUCK |
Tube Design |
Standard |
Tube Diameter |
1-3/4 in. |
Tube Length |
Long Tubes |
Tube Material Thickness |
16g |
Tube Size |
1-3/4 in. |
Tube Style |
Long Tubes |
Tuned |
No |
Variations |
69116, 69820 |
Weld-Up |
No |
with A.I.R. System |
No |
with EGR |
No |
Y-Pipe Included |
No |
Length |
8.0000 |
Width |
17.0000 |
Height |
39.0000 |
Weight |
34.0000 |