Hedman Hedders has been manufacturing quality headers in the USA since 1954, and they've been manufacturing long and MID-LENGTH tube headers for Chevy passenger cars 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 Small Block Chevy exhaust system to bolt up, even if it is not perfectly aligned with the header collectors.
These uncoated, MID-LENGTH tube headers are one of the most versatile headers Hedman Hedders manufacturers. While we've seen them on rare builds, like a SB Chevy equipped Studebaker, these MID-LENGTH headers are actually cataloged to fit Small Block Chevy V8 powered, 1967-81 Chevy Camaros; 1964-1987 GM A-Body and G-Body vehicles (Buick Regal, Chevy Chevelle, El Camino, Monte Carlo, Olds Cutlass, Pontiac Grand Prix); '68-79 Chevy II and Nova. Heck, they even fit 1984-2004 Chevy AstroVans. The smooth 1-5/8 in tube design provides ample exhaust flow to let your 283-400 SB Chevy engine breathe easy, and improve horsepower and torque over stock manifolds.
These headers are uncoated, and ship from the factory with a temporary black paint that will burn off when submitted to normal operating temperatures. For protection against the element and lower underhood temperatures, these headers are also available with a silver or black ceramic-metallic finish.
Each set includes a pair of gaskets, header flange bolts and collector bolts. No collector gasket is needed.
Hedman Hedders is so confident in the quality of its headers that these headers are factory backed by a Limited Lifetime Warranty.
- Handcrafted, Mild Steel Construction.
- The Mid-Length Tube Header Design Provides Significantly More Low and Mid-range Power than Cast Manifolds, and Provide Better Ground Clearance And Component Compatibility Than Long Tube Headers.
- Ball & Socket Collector Design requires No Gasket, and Allows For More Exhaust System Misalignment than Old School, Gasket-Style Header Collectors
- Includes All The Necessary Mounting Hardware, Gaskets and Reducers (exhaust adapters)
- Limted Lifetime Warranty On Construction, Five Year Warranty on Factory-Applied Header Coating!
- Proud To Say, Made In The USA, Since 1954!
Application Summary:
| Year | Make/Model |
|---|---|
| 1971-1975 | Chevrolet Bel Air |
| 1971-1972 | Chevrolet Biscayne |
| 1971-1972 | Chevrolet Caprice |
| 1975-1976 | Chevrolet Caprice |
| 1964-1967 | Chevrolet Chevelle |
| 1964-1967 | Chevrolet El Camino |
| 1970-1971 | Chevrolet El Camino |
| 1974-1976 | Chevrolet El Camino |
| 1971-1976 | Chevrolet Impala |
| 1970-1976 | Chevrolet Monte Carlo |
| 1971-1972 | Chevrolet Townsman |
| 1971 | GMC Sprint |
| 1974-1976 | GMC Sprint |
| Attributes | |
| Air Conditioning | Yes, Yes, Dependent on Vehicle (refer to VEHICLE APPLICATION Footnotes) |
| Application | Automotive |
| ASIN | B000COBIJ6 |
| Automatic Transmission - Column | Yes, Yes, Yes |
| Automatic Transmission - Floor | Yes, Yes, Yes |
| Bolts/Studs Included | Yes, Yes, Yes |
| California Proposition 65 | WARNING: Cancer - www.P65Warnings.ca.gov |
| Catalytic Converter(s) Included | No, No, No |
| Coating/Finish | Painted |
| Collector Attachment | 3", 3 in., 3 in. |
| Collector Bolts Included | Yes, Yes, Yes |
| Collector Diameter | 3 in., 3 in. |
| Collector Size | 3", 3 in., 3 in. |
| Collector Style | Ball and Socket Style (Gasketless), BALL and SOCKET Style (Gasketless), BALL and SOCKET Style (Gasketless) |
| Collector Tube Size (in.) | 3 |
| Contents | headers, gaskets (when applicable), 3-bolt exhaust adapters, hardware, headers, gaskets (when applicable), 3-bolt exhaust adapters, hardware, Header(s), new bolts and gasket(s) to head, reducer(s) and hardware, instructions |
| Country of Origin (Primary) | US |
| Crossover Pipe Included | NO, No, No |
| Cylinder Head | Stock Profile Heads, Stock Profile Heads, Stock Profile Heads |
| Cylinder Head Port Shape | Round, Round, Round |
| E.O. # | No, No |
| Emission Code | Not in CA |
| Emissions Notes | NOT LEGAL FOR STREET USE ON '75-LATER MODEL YEARS! Legal for off-road use only., NOT LEGAL FOR STREET USE ON '75-LATER MODEL YEARS! Legal for off-road use only., 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, 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", 2-1/2 in., 2-1/2 in. |
| Finish | Uncoated, Uncoated |
| Finish Type | Uncoated Mild steel, Uncoated Mild steel, UNCOATED Mild Steel! Shipped with Temporary Paint. |
| Flange Style | Standard, Standard, Standard |
| FLANGE Thickness | 1/4", 0.3125 in., 0.3125 in. |
| Gasket # | 27500 |
| Gasket Or Seal Included | Yes, Yes, Yes |
| Harmonized Tariff Code (Schedule B) | 8708925000 |
| Hazardous Material Code | N |
| Head Flange Gasket | 27500 |
| Header Construction | Standard-Duty, MILD STEEL- Standard-Duty |
| Header Fasteners Included | Yes, Yes |
| Header Finish | Uncoated, Uncoated, Uncoated |
| Header Material | Mild Steel, Mild Steel, Mild Steel |
| Header Port Shape | Round, Round, Round |
| Header Style | Mid-Length Tube, Mid-Length Tube |
| IMPORTANT! | Automatic Transmission ONLY!, Automatic Transmission ONLY!, Automatic Transmission ONLY! |
| Installation Hardware Included | Yes, Yes, Yes |
| Life Cycle Status Code | Available to Order |
| LS SWAP | NO |
| Manual Transmission - Column | No, No, No |
| Manual Transmission - Floor | No, No, No |
| Material | Steel, Mild Steel, Mild Steel |
| Motor Mounts (Included) | NO, No |
| Motor Mounts Included | NO, No, No |
| Mounting Hardware Included | Yes, Yes, 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, 67-81 F; 64-83 A, 82-88 G; 68-79 X; 71-94 B; 84-04 Astro 283-400, 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, Headers, ball and socket reducers (exhaust adapters), gaskets, mounting hardware, Headers, ball and socket reducers (exhaust adapters), gaskets, mounting hardware |
| Port Shape | Round, Round, Round |
| Power Steering | Yes, Yes, Yes |
| Primary Tube Diameter (in) | 1.625", 1.625 in., 1.625 in. |
| Primary Tube Gauge | 18g, 16g, 16g |
| Quantity | Sold as a pair., Sold as a pair., Sold as a pair. |
| Reducer Outlet Size | 2-1/2", 2-1/2 in., 2-1/2 in. |
| Reducers Included | Yes, Yes, Yes |
| Replacement Gasket | 27500, 27500, 27500 |
| Replacement Head Flange Gasket | 27500, 27500 |
| SDR Required Flag | N |
| Transmission Mount Included | NO |
| Transmission Mount/Crossmember (Included) | No, No |
| Transmission Mount/Crossmember Included | No |
| Tube Design | MID-LENGTH, Standard |
| Tube Diameter | 1-5/8", 1-5/8 in., 1-5/8 in. |
| Tube Direction | Down Swept |
| Tube Length | MID-LENGTH Tubes, Mid-Length Tubes, Mid-Length Tubes |
| Tube Material Thickness | 18g, 16g, 16g |
| Tube Size | 1.625, 1-5/8", 1-5/8 in., 1-5/8 in. |
| Tube Style | Mid-Length, Mid-Length |
| Tuned | NO, No, No |
| Variations | 68606, 68603, 68608 & 63608. 62600, 62606 & 62603 304 Stainless Steel., 68606, 68603, 68608 & 63608. 62600, 62606 & 62603 304 Stainless Steel. |
| Weld-Up | No, No, No |
| with A.I.R. | No |
| with A.I.R. System | No, No, No |
| with EGR | No, No, No |
| Y-Pipe Included | No, No, No |
| GTIN | 00732611686006 |