Standard Uncoated Hedders; 1-5/8" Tube Dia.; 3" Coll.; Mid-Length Design

Each member company of the Hedman Performance Group is a specialist in the field they serve. Hedman hedders specializes in headers, Trans-Dapt Engine/transmission swap mounts, and Hamburger's focuses on oil pans. Working together, the HP Group companies join as one to develop comprehensive kits that include everything you'll need to safely, and properly, fasten the donor LS engine to the 1968-72 GM A-Body chassis. Sold as a single part number, purchasing complete engine swap kit ensures the products have been developed to work with each other, and takes the guesswork out of choosing swap products.

This Swap-In-A-Box Kit is developed specifically for installing an LS engine and TH350 and TH400 automatic transmission into 1968-72 GM A-Body cars (Buick Skylark, Chevy Chevelle, El Camino, Monte Carlo, Oldsmobile Cutlass, 442, Vista Cruiser, Pontiac GTO, LeMans, Tempest). The comprehensive kits includes a pair of mild steel, satin black ceramic-coated 1-3/4" diameter Mid-Length headers with gaskets, bolts and exhaust adapters, a complete engine mount kit with hardware and rubber pads, and an LS swap engine oil pan with bolts, gaskets and special pick-up tube

Complete kits for 4L60E or 4L70E auto transmission projects, as well as kits with Hedman's HTC polished silver ceramic-coated, or uncoated headers are also available.

Headers are backed by a limited lifetime warranty. All other components are covered for a full year from the date of purchase.

Application Summary:

Year Make/Model
1978-1980 Buick Regal
1974-1975 Chevrolet Bel Air
1967-1981 Chevrolet Camaro
1974-1993 Chevrolet Caprice
1964-1968 Chevrolet Chevelle
1968 Chevrolet Chevy II
1964-1969 Chevrolet El Camino
1974-1987 Chevrolet El Camino
1974-1985 Chevrolet Impala
1974-1976 Chevrolet Laguna
1964-1967 Chevrolet Malibu
1974-1983 Chevrolet Malibu
1974-1987 Chevrolet Monte Carlo
1974-1979 Chevrolet Nova
1978-1980 Oldsmobile Cutlass
1978-1980 Pontiac Grand Prix
1983-1987 Pontiac Grand Prix
1977-1980 Pontiac LeMans
1977 Pontiac Ventura
Air Conditioning Yes
Application Automotive
Automatic Transmission - Column Yes
Automatic Transmission - Floor Yes
Bolts/Studs Included Yes
California Proposition 65 WARNING: Cancer. For more info visit
Catalytic Converter(s) Included No
Coating/Finish Painted
Collector Attachment 3"
Collector Bolts Included Yes
Collector Size 3"
Collector Style Ball and Socket Style (Gasketless)
Collector Tube Size (in.) 3
Contents Header(s), new bolts and gasket(s) to head, reducer(s) and hardware, instructions
Country of Origin (Primary) US
Crossover Pipe Included NO
Cylinder Head Stock Profile Heads
Cylinder Head Port Shape Round
E.O. # No
Emission Code Not in CA
Emissions Notes NOT LEGAL FOR STREET USE ON '75-LATER MODEL YEARS! Legal for off-road use only.
Engine Chevy SB 283-400 (Gen 1) 1958-86, SB Chevy 283-400 (Gen 1)
Engine Make/Size Chevy Small Block (262-400)
Exhaust System Dia 2-1/2"
FLANGE Thickness 1/4"
Finish Uncoated
Finish Type Uncoated Mild steel
Flange Style Standard
GTIN 00732611686006
Gasket # 27500
Gasket Or Seal Included Yes
Harmonized Tariff Code (Schedule B) 8708925000
Hazardous Material Code N
Head Flange Gasket 27500
Header Construction Standard-Duty
Header Finish Uncoated
Header Material Mild Steel
Header Port Shape Round
Header Style Mid-Length Tube
IMPORTANT! Automatic Transmission ONLY!
Installation Hardware Included Yes
Life Cycle Status Code Available to Order
Manual Transmission - Column No
Manual Transmission - Floor No
Material Steel, Mild Steel
Motor Mounts (Included) NO
Motor Mounts Included NO
Mounting Hardware Included Yes
NAFTA Preference Criterion Code B
Notes 67-81 F; 64-83 A, 82-88 G; 68-79 X; 71-94 B; 84-04 Astro 283-400
Package Contents Header(s), new bolts and gasket(s) to head, reducer(s) and hardware, instructions
Port Shape Round
Power Steering Yes
Primary Tube Diameter (in) 1.625"
Primary Tube Gauge 18g
Quantity Sold as a pair.
Reducer Outlet Size 2-1/2"
Reducers Included Yes
Replacement Gasket 27500
Replacement Head Flange Gasket 27500
SDR Required Flag N
Transmission Mount Included NO
Transmission Mount/Crossmember (Included) No
Transmission Mount/Crossmember Included No
Tube Design MID-LENGTH
Tube Diameter 1-5/8"
Tube Direction Down Swept
Tube Length MID-LENGTH Tubes
Tube Material Thickness 18g
Tube Size 1.625, 1-5/8"
Tube Style Mid-Length
Tuned NO
Variations 68606, 68603, 68608 & 63608. 62600, 62606 & 62603 304 Stainless Steel.
Weld-Up No
Y-Pipe Included No
with A.I.R. No
with A.I.R. System No
with EGR No

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Hedman Hedders 68600 Standard Uncoated Hedders; 1-5/8" Tube Dia; 3" Coll; Mid-Length Design

Product Information

  • Brand: Hedman
  • Product Number: 68600
  • $175.99

The AAM Group™ Proposition 65
Proposition 65 warning graphic Cancer. For more info visit