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.
Specifications:
| Description_ASM |
1967 Pontiac Firebird CID 326, 1968-1970 Pontiac Firebird CID 350, 1972-1977 Pontiac Firebird CID 350, 1967-1970 Pontiac Firebird CID 400, 1975-1979 Pontiac Firebird CID 400, 1971-1976 Pontiac Firebird CID 455, 1977 Pontiac Firebird Base CID 350 Naturally Aspirated GAS, 1973 Pontiac Grand Am CID 350, 1974-1975 Pontiac Grand Am CID 400, 1974-1975 Pontiac Grand Am CID 455, 1972-1974 Pontiac Grand Prix CID 400, 1973 Pontiac Grand Prix CID 455, 1964-1966 Pontiac GTO CID 389, 1967-1973 Pontiac GTO CID 400, 1970-1973 Pontiac GTO CID 455, 1964-1967 Pontiac LeMans CID 326, 1972-1976 Pontiac LeMans CID 350, 1972 Pontiac LeMans CID 400, 1974-1977 Pontiac LeMans CID 400, 1972-1973 Pontiac LeMans CID 455, 1976 Pontiac LeMans CID 455, 1964-1967 Pontiac Tempest CID 326, 1968-1970 Pontiac Tempest CID 350, 1968-1970 Pontiac Tempest CID 400 |
| Description_DEF |
Exhaust Header |
| Description_DES |
Standard Uncoated Headers; 1-5/8-2 in. Tube Dia; FULL LENGTH Design |
| Description_FAB |
Handcrafted, Mild Steel Construction. |
| Description_FAB |
Long Tube Header Design Provides Excellent Top-End Horsepower and Torque. |
| Description_FAB |
Ball & Socket Collector Design requires No Gasket, and Allows For More Exhaust System Misalignment than Old School, Gasket-Style Header Collectors |
| Description_FAB |
Includes All The Necessary Mounting Hardware, Gaskets and Reducers (exhaust adapters) |
| Description_FAB |
Limted Lifetime Warranty On Construction, Five Year Warranty on Factory-Applied Header Coating! |
| Description_FAB |
Proud To Say, Made In The USA, Since 1954! |
| Description_INV |
HEDMAN PONTIAC CAR HEADERS- UNCOATED |
| Description_EXT |
Standard Uncoated Headers; 1-5/8-2 in. Tube Dia.; 3 in. Coll.; FULL LENGTH Design |
| Description_MKT |
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.
|
| Description_SHO |
HEADERS, UNCOATED |
| Air Conditioning |
Yes |
| Bolts/Studs Included |
Yes |
| California Proposition 65 |
WARNING: Cancer. For more info visit www.P65Warnings.ca.gov |
| Catalytic Converter(s) Included |
No |
| Collector Attachment |
3 in. |
| Collector Bolts Included |
Yes |
| Collector Diameter |
3 in. |
| Collector Size |
3 in. |
| Collector Style |
BALL and SOCKET Style (Gasketless) |
| Contents |
headers, gaskets (when applicable), 3-bolt exhaust adapters, hardware |
| Crossover Pipe Included |
No |
| Cylinder Head |
Stock Profile Heads |
| Cylinder Head Port Shape |
Oval |
| E.O. # |
Yes |
| Emissions Notes |
EO# D167-27 (click here for covered vehicles in document on ARB.CA.GOV website) |
| Exhaust System Dia |
2-1/2 in. |
| Finish |
Uncoated |
| Finish Type |
Uncoated Mild steel |
| Flange Style |
Standard |
| Flange Thickness |
0.3125 in. |
| Gasket Or Seal Included |
Yes |
| Header Construction |
MILD STEEL- Standard-Duty |
| Header Fasteners Included |
Yes |
| Header Finish |
Uncoated |
| Header Material |
Mild Steel |
| Header Port Shape |
Oval Port |
| Header Style |
Long Tube |
| Installation Hardware Included |
Yes |
| 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. |
| Material |
Mild Steel |
| Motor Mounts Included |
No |
| Mounting Hardware Included |
Yes |
| Notes |
64-81 Various Pontiac Cars 326-455 |
| Package Contents |
Headers, ball and socket reducers (exhaust adapters), gaskets, mounting hardware |
| Port Shape |
Oval |
| Power Steering |
Yes |
| Primary Tube Diameter (in) |
1.625 in. x 2 in. |
| Primary Tube Gauge |
16g |
| Quantity |
Sold as a pair. |
| Reducer Outlet Size |
2-1/2 in. |
| Reducers Included |
Yes |
| Replacement Gasket |
27600 |
| Replacement Head Flange Gasket |
27600 |
| Title |
HEDMAN HEDDERS STANDARD UNCOATED HEADERS; 1-5/8-2 IN. TUBE DIA.; 3 IN. COLL.; FULL LENGTH DESIGN |
| Tube Design |
Standard |
| Tube Diameter |
1-5/8 in. x 2 in. |
| Tube Length |
Long Tubes |
| Tube Material Thickness |
16g |
| Tube Size |
1-5/8 in. x 2 in. |
| Tube Style |
Long Tubes |
| Tuned |
No |
| Variations |
28146 |
| Weld-Up |
No |
| with A.I.R. System |
No |
| with EGR |
No |
| Y-Pipe Included |
No |
| Length |
8.0000 |
| Width |
17.0000 |
| Height |
39.0000 |
| Weight |
26.0000 |
