Hedman 28140
Exhaust Headers
NOTE: The paint applied to these headers is a temporary coating only and is designed to burn off during use. High temperature paint or other high temperature coatings are recommended.
Application:
Pontiac
1967-1979 Firebird
1973-1975 Grand Am
1972-1974 Grand Prix
1964-1973 GTO
1964-1977 LeMans
1964-1970 Tempest
Specification
Tube Diameter | 1-5/8 in. x 2 in. |
---|---|
Tube Style | Long Tubes |
Collector Style | BALL and SOCKET Style (Gasketless) |
Air Conditioning | Yes |
Collector Attachment | 3 in. |
Collector Diameter | 3 in. |
Collector Size | 3 in. |
Reducer Outlet Size | 2-1/2 in. |
Exhaust System Diameter | 2-1/2 in. |
Contents | headers, gaskets (when applicable), 3-bolt exhaust adapters, hardware |
E.O. # | Yes |
Emissions Notes | EO# D167-27 (click here for covered vehicles in document on ARB.CA.GOV website) |
Finish | Uncoated |
Finish Type | UNCOATED Mild Steel! Shipped with Temporary Paint. |
Flange Style | Standard |
Flange Thickness | 0.3125 in. |
Header Port Shape | Oval Port |
Header Style | Long Tube |
Notes | 64-81 Various Pontiac Cars 326-455 |
Port Shape | Oval |
Power Steering | Yes |
Material | Mild Steel |
Tube Design | Standard |
Tube Length | Long Tubes |
Tube Material Thickness | 16g |
Tube Size | 1-5/8 in. x 2 in. |
Variations | 28146 |
Installation Notes | Modification to reverse lockout (back drive) mechanism may be required. |
Installation Notes | Some heads may require drilling and tapping of end bolt holes. |
With A.I.R. System | No |
With EGR | No |
Weld-Up | No |
Tuned | No |
Bolts/Studs Included | Yes |
Catalytic Converter(s) Included | No |
Collector Bolts Included | Yes |
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 | 16g |
Primary Tube Diameter | 1.625 in. x 2 in. |
Package Contents | Headers, ball and socket reducers (exhaust adapters), gaskets, mounting hardware |
Header Material | Mild Steel |
Header Finish | Uncoated |
Cylinder Head Port Shape | Oval |
Cylinder Head | Stock Profile Heads |
Header Construction | MILD STEEL- Standard-Duty |
Replacement Gasket | 27600 |
Replacement Head Flange Gasket | 27600 |
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