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HD68609 - 1-5/8" Mid-Length Headers, Sb Chevy 283-400 With D-Port Heads; Various Camaro, Chevelle, El Camino, Nova, Regal, Cutlass, Grand Prix & Others- Standard-Duty Uncoated
TUBE DIAMETER 1-5/8"
TUBE STYLE Mid-Length
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
COLLECTOR ATTACHMENT 3"
COLLECTOR SIZE 3"
CONTENTS Header(s), new bolts and gasket(s) to head, reducer(s) and hardware, instructions
E.O. # No
EMISSIONS NOTES NOT LEGAL FOR STREET USE ON '76-LATER MODEL YEARS! Legal for off-road use only.
ENGINE Chevy SB 283-400 (Gen 1) D-Port
EXHAUST SYSTEM DIA 2-1/2"
FINISH Uncoated
FLANGE STYLE Standard
FLANGE THICKNESS 0.3125"
HEAD FLANGE GASKET 27690
HEADER PORT SHAPE D-Port
HEADER STYLE Mid-Length Tube
KEY FEATURE D-Port Heads
NOTES 67-81 F; 64-83 A, 82-88 G; 68-79 X; 71-94 B; 84-04 Astro 283-400
PORT SHAPE D-port
POWER STEERING Yes
MATERIAL Mild Steel
SPECIAL ENGINE NOTES D-PORT
TUBE DESIGN MID-LENGTH
TUBE LENGTH MID-LENGTH Tubes
TUBE MATERIAL THICKNESS 18g
TUBE SIZE 1-5/8"
VARIATIONS 66609
WITH A.I.R. SYSTEM No
WITH EGR No
WELD-UP No
REDUCER OUTLET SIZE 2-1/2"
TUNED NO
REDUCERS INCLUDED Yes
GASKET OR SEAL INCLUDED Yes
BOLTS/STUDS INCLUDED Yes
INSTALLATION HARDWARE INCLUDED Yes
TRANSMISSION MOUNT/CROSSMEMBER (INCLUDED) No
MOTOR MOUNTS (INCLUDED) NO
MOUNTING HARDWARE INCLUDED Yes
COLLECTOR BOLTS INCLUDED Yes
CROSSOVER PIPE INCLUDED NO
Y-PIPE INCLUDED No
CATALYTIC CONVERTER(S) INCLUDED No
QUANTITY Sold as a pair.
PRIMARY TUBE GAUGE 18g
PRIMARY TUBE DIAMETER (IN) 1.625"
PACKAGE CONTENTS Header(s), new bolts and gasket(s) to head, reducer(s) and hardware, instructions
HEADER MATERIAL Mild Steel
HEADER FINISH Uncoated
GASKET # 27690
CYLINDER HEAD PORT SHAPE D-port
CYLINDER HEAD Stock Profile Heads
HEADER CONSTRUCTION Standard-Duty
Manufacturer
Hedman Hedders, began as a one man shop in 1954. Bob Hedman, founder of Hedman Hedders, sold his highly sought after exhaust tubes to fellow racers on the salt flats of the Mojave Desert. But, what started out as a way to make a few bucks to pay for Bob’s racing hobby, quickly turned into the premier hedder manufacturer for both the racing and street hedder marketplaces. Originally designed for straightline drag racers, word spread quickly about Hedman’s reputation for building hedders that gave you the best boost in power for your dollar. It wasn’t long before Hedman Hedders was the brand of choice among racing’s elite engine builders, racers and race series. Familiar names like Don Garlits, Warren Johnson, Shirley Muldowney, Bob Chandler and his BIG FOOT Race Team, and the IROC series. Hedman Hedders constantly reshapes itself to meet environmental requirements and incorporates computer technology to ensure that its products offer the best performance improvement. Whether you’re a Pro or sportsman racer, Hedman Hedders builds your hedder with one goal in mind, optimum performance. Even if you’re not a racer, the lessons Hedman learns at the track and on the dyno, make it into every street hedder we design.
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