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#41863890
$733.99
/set
Factory Shipped
Quantity
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Long Tube Header Tube Type, Oval Exhaust Port Shape
| MFG. Part # | 63890 |
| Header Tube Type | Long Tube |
| Exhaust Port Shape | Oval |
| Flange Style | Standard |
| Primary Tube Diameter | 1-5/8" |
Made to Order
This custom item will ship when completed
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Return PolicyHedman Hedders has been manufacturing quality headers in the USA since 1954, and they've been manufacturing 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 SB Chevy exhaust system to bolt up, even if it is not perfectly aligned with the header collectors.
This set is part of Hedman's BLACK ELITE® line of headers, which have stout 3/8 in. flanges, and thicker 14 gauge primary tubes. The heavy-duty construction of HEDMAN ELITE® Hedders makes them ideal for high-performance engines and tow vehicles, which produce higher exhaust temperatures.
BLACK ELITE® models have a BLACK ceramic finish that can withstand temperatures up to 1400 degrees F. The coating looks great and increases exhaust speeds for improved exhaust scavenging, and reduced under hood temperatures.
These LONG-TUBE headers fit 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). 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.
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. The ceramic-metallic finish is covered by a 5-year factory warranty, in addition to Hedman's standard lifetime header warranty.
Specs
Manufacturer Specs:
TUBE DIAMETER| 1-5/8 in. | |
TUBE STYLE| Long Tubes | |
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, gaskets (when applicable), 3-bolt exhaust adapters, hardware | |
FINISH| BLACK MAXX Satin Black Ceramic-Metallic | |
FINISH TYPE| BLACK MAXX- Black Ceramic-Metallic Coating | |
FLANGE STYLE| Standard | |
FLANGE THICKNESS| 0.375 in. | |
HEADER STYLE| Long Tube | |
NOTES| 67-82 GM Full Size Blazer, Jimmy 283-400 | |
MATERIAL| Mild Steel | |
TRANSMISSION NOTES| May encounter clutch shaft interference. If so, use 69092, 69093 or 69892 | |
TUBE DESIGN| Standard | |
TUBE LENGTH| Long Tubes | |
TUBE MATERIAL THICKNESS| 14g | |
TUBE SIZE| 1-5/8 in. | |
WITH AIR SYSTEM| Yes | |
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| 14g | |
PRIMARY TUBE DIAMETER IN| 1.625 in. | |
PACKAGE CONTENTS| Headers, ball and socket reducers (exhaust adapters), gaskets, mounting hardware | |
HEADER MATERIAL| Mild Steel | |
HEADER FINISH| BLACK MAXX Satin Black Ceramic-Metallic | |
CYLINDER HEAD PORT SHAPE| Oval | |
CYLINDER HEAD| Fits Factory GM Aluminum Angle Plug and Straight Plug Heads. | |
HEADER CONSTRUCTION| MILD STEEL- ELITE Heavy-Duty | |
REPLACEMENT GASKET| 41827540 | |
REPLACEMENT HEAD FLANGE GASKET| 41827540 | |
HEADER PORT SHAPE| Oval Port | |
PORT SHAPE| Oval | |
COLLECTOR BOLTS INCLUDED| Yes | |
CHASSIS COMPATIBILITY| may encounter clutch interference if cross shaft behind driver side rear port | |
MATERIALS| NOT For Vehicles With Offset (right) Engine Position! | |
PRODUCT INFO| 4WD | |
Guides & Documents
For race/ off road use or for use on pre-1966 vehicles.
WARNING:
Cancer and Reproductive Harm – www.P65Warnings.ca.gov
| KEY SPECS | |
|---|---|
| MFG. Part # | 63890 |
| Brand | Hedman Hedders |
| Header Tube Type | Long Tube |
| Exhaust Port Shape | Oval |
| Flange Style | Standard |
| Primary Tube Diameter | 1-5/8" |
| Material Type | Mild Steel |
| Color | Black |
| Weld-Up | No |
| Collector Diameter | 3 Inch |
| Finish | Satin |
| 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 | 0.375" |
| Tuned | No |
| Crossover Pipe Included | No |
| Primary Tube Gauge | 14-gauge |
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