-Application CHEVROLET,GMC K10 PICKUP, K15/K1500, K20 PICKUP, K25/K2500, R10 PICKUP, R20 PICKUP, R1500 PICKUP, R2500 PICKUP, V10 PICKUP, V20 PICKUP, V1500 PICKUP, V2500 PICKUP 1982-1987 V8 283, 302, 305, 307, 327, 350, 372, 383, 400 ; 4WD
TUBE DIAMETER: 1-5/8"
TUBE STYLE: Long Tube
COLLECTOR STYLE: Ball and Socket Style (Gasketless)
AIR CONDITIONING: Yes
AUTOMATIC TRANSMISSION - COLUMN: Yes
AUTOMATIC TRANSMISSION - FLOOR: Yes
MANUAL TRANSMISSION - COLUMN: No
MANUAL TRANSMISSION - FLOOR: No
CHASSIS COMPATIBILITY: NOT For Vehicles With Offset (right) Engine Position!
COLLECTOR ATTACHMENT: 3"
COLLECTOR SIZE: 3"
REDUCER OUTLET SIZE: 2-1/2"
EXHAUST SYSTEM DIAMETER: 2-1/2"
CONTENTS: headers, gaskets (when applicable), 3-bolt exhaust adapters, hardware
E.O. # No
EMISSIONS NOTES NOT LEGAL FOR STREET USE ON: '75-LATER MODEL YEARS! Legal for off-road use only.
FINISH TYPE: Uncoated Mild steel
FLANGE STYLE: Standard
FLANGE THICKNESS: 0.25"
HEADER PORT SHAPE: Round
HEADER STYLE: Long Tube
NOTES: 67-91 GM. Full Size Blazer, Jimmy 283-400 2-4WD
PORT SHAPE: Round
POWER STEERING: Yes
MATERIAL: Mild Steel
TRANSMISSION COMPATIBILITY: may encounter clutch interference if cross shaft behind driver side rear port
TUBE DESIGN: LONG TUBES
TUBE LENGTH: Long Tubes
TUBE MATERIAL THICKNESS: 16g
TUBE SIZE: 1-5/8"
VARIATIONS: 69096, 69890
WITH A.I.R. SYSTEM: No
WITH EGR: No
BOLTS/STUDS INCLUDED: Yes
CATALYTIC CONVERTER(S) INCLUDED: No
COLLECTOR BOLTS INCLUDED: Yes
CROSSOVER PIPE INCLUDED: No
GASKET OR SEAL 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 : 1.625"
PACKAGE CONTENTS: Set of Headers, mounting hardware and gaskets
HEADER MATERIAL: Mild Steel
HEADER FINISH: Uncoated
CYLINDER HEAD PORT SHAPE: Round
CYLINDER HEAD: Fits Factory GM Aluminum or Cast Iron, Angle Plug and Straight Plug Heads.
HEADER CONSTRUCTION: Standard-Duty
REPLACEMENT GASKET: 27500
REPLACEMENT HEAD FLANGE GASKET: 27500
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 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 Small Block Chevy engine. Included in this header's long list of applications is 1967-1987 2WD & 4WD Chevy/GMC 1/2 Ton and 3/4 ton trucks, Blazers and Suburbans (check the application listings for exact fitment). 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 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.