Hedman Hedders has been manufacturing quality headers in the USA since 1954, and they've been manufacturing long and MID-LENGTH tube headers for Pontiac models for decades. 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 Firebird, GTO, Lemans, Grand Prix or Tempest exhaust system to bolt up, even if it is not perfectly aligned with the header collectors.
The LONG-TUBE design provides ample exhaust flow to let your 326-455 Pontiac 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. They are also available with a ceramic-metallic finish.
Each set includes a pair of gaskets, header flange bolts and collector bolts. No collector gasket is needed.
Due to the location of the oil filter on these vehicles, relocation of the oil filter may be required to provide header tube clearance. We recommend the use of a Trans-Dapt Performance Products' #1120 (cast aluminum), or Hamburger's Performance Products #3365 (billet aluminum) oil filter relocation kit. Hedman Hedders is so confident in the quality of its headers that these headers are factory backed by a Limited Lifetime Warranty.
Hedman Hedders Uncoated Long 3-Tube Headers for 1967-81 Pontiac Firebird with Pontiac V8 28140
Specifications:
| Description_DEF | [B@35088be |
| Description_DES | [B@7e0b7be1 |
| Description_EXT | [B@93fbb9a |
| Description_FAB | [B@1306daf4 |
| Description_FAB | [B@1494b552 |
| Description_FAB | [B@31e50052 |
| Description_FAB | [B@45728e9f |
| Description_FAB | [B@60862dbf |
| Description_FAB | [B@51893ad8 |
| Description_INV | [B@4877472b |
| Description_MKT | [B@19a03ecc |
| Description_SHO | [B@481a1392 |
| Title | HEDMAN HEDDERS STANDARD UNCOATED HEADERS; 1-5/8-2 IN. TUBE DIA.; 3 IN. COLL.; FULL LENGTH DESIGN |
| Tube Diameter | 1-5/8 in. x 2 in. |
| Y-Pipe Included | 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 |
| Quantity | Sold as a pair. |
| with EGR | No |
| Primary Tube Gauge | 16g |
| Primary Tube Diameter (in) | 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 |
| California Proposition 65 | WARNING: Cancer. For more info visit www.P65Warnings.ca.gov |
| Weld-Up | No |
| with A.I.R. System | No |
| Tube Style | Long Tubes |
| Air Conditioning | Yes |
| Installation Notes | Modification to reverse lockout (back drive) mechanism may be required. |
| 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 |
| Flange Thickness | 0.3125 in. |
| Exhaust System Dia | 2-1/2 in. |
| Reducer Outlet Size | 2-1/2 in. |
| Collector Attachment | 3 in. |
| Collector Diameter | 3 in. |
| Collector Size | 3 in. |
| Notes | 64-81 Various Pontiac Cars 326-455 |
| Collector Style | BALL and SOCKET Style (Gasketless) |
| Emissions Notes | EO# D167-27 (click here for covered vehicles in document on ARB.CA.GOV website) |
| Contents | headers, gaskets (when applicable), 3-bolt exhaust adapters, hardware |
| Header Style | Long Tube |
| Port Shape | Oval |
| Header Port Shape | Oval Port |
| Flange Style | Standard |
| Finish | Uncoated |
| Finish Type | UNCOATED Mild Steel! Shipped with Temporary Paint. |
| E.O. # | Yes |
| Power Steering | Yes |
This Part Fits:
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 1967 | Pontiac | Firebird | BASE | |
| 1968 | Pontiac | Firebird | BASE | |
| 1969 | Pontiac | Firebird | BASE | |
| 1970 | Pontiac | Firebird | BASE | |
| 1971 | Pontiac | Firebird | BASE | |
| 1972 | Pontiac | Firebird | BASE | |
| 1973 | Pontiac | Firebird | BASE | |
| 1974 | Pontiac | Firebird | BASE | |
| 1975 | Pontiac | Firebird | BASE | |
| 1976 | Pontiac | Firebird | BASE | |
| 1977 | Pontiac | Firebird | BASE | |
| 1978 | Pontiac | Firebird | BASE | |
| 1979 | Pontiac | Firebird | BASE | |
| 1973 | Pontiac | Grand Am | BASE | |
| 1974 | Pontiac | Grand Am | BASE | |
| 1975 | Pontiac | Grand Am | BASE | |
| 1972 | Pontiac | Grand Prix | BASE | |
| 1973 | Pontiac | Grand Prix | BASE | |
| 1974 | Pontiac | Grand Prix | BASE | |
| 1964 | Pontiac | GTO | BASE | |
| 1965 | Pontiac | GTO | BASE | |
| 1966 | Pontiac | GTO | BASE | |
| 1967 | Pontiac | GTO | BASE | |
| 1968 | Pontiac | GTO | BASE | |
| 1969 | Pontiac | GTO | BASE | |
| 1970 | Pontiac | GTO | BASE | |
| 1971 | Pontiac | GTO | BASE | |
| 1972 | Pontiac | GTO | BASE | |
| 1973 | Pontiac | GTO | BASE | |
| 1964 | Pontiac | Tempest | BASE | |
| 1965 | Pontiac | Tempest | BASE | |
| 1966 | Pontiac | Tempest | BASE | |
| 1967 | Pontiac | Tempest | BASE | |
| 1968 | Pontiac | Tempest | BASE | |
| 1969 | Pontiac | Tempest | BASE | |
| 1970 | Pontiac | Tempest | BASE |