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 trucks for nearly as long. 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, LONG-TUBE headers are one of Hedman's best selling Chevy truck headers. They fit a wide range of early to mid-year 1967-1987 2WD & 4WD Chevy/GMC 1/2 Ton and 3/4 ton trucks, Blazers and Suburbans (check the application listings for exact fitment), powered by a Small Block Chevy engine (without A.I.R. System). The smooth 1-5/8 in. tube design provides ample exhaust flow to let your truck's 283-400 SB Chevy 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. For protection against the element and lower under hood 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.
Hedman Hedders Long-Tube Headers For 67-91 GM 283-400 Trucks & SUVs 69090
Specifications:
| Description_DEF | [B@6d9d991b |
| Description_DES | [B@4e250345 |
| Description_EXT | [B@3f8aef00 |
| Description_FAB | [B@4f004125 |
| Description_FAB | [B@4ed44c9f |
| Description_FAB | [B@288d512b |
| Description_FAB | [B@401749d5 |
| Description_FAB | [B@dd3219b |
| Description_FAB | [B@618f340a |
| Description_INV | [B@23c93519 |
| Description_MKT | [B@596a8954 |
| Description_SHO | [B@4da1b41b |
| Tube Diameter | 1-5/8 in. |
| Mounting Hardware Included | Yes |
| 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 |
| Reducers Included | Yes |
| Tube Size | 1-5/8 in. |
| Y-Pipe Included | No |
| Quantity | Sold as a pair. |
| Primary Tube Gauge | 16g |
| Primary Tube Diameter (in) | 1.625 in. |
| Package Contents | Headers, ball and socket reducers (exhaust adapters), gaskets, mounting hardware |
| Header Material | Mild Steel |
| Header Finish | Uncoated |
| Cylinder Head Port Shape | Round |
| Cylinder Head | Fits Factory GM Aluminum Angle Plug and Straight Plug Heads. |
| Header Construction | MILD STEEL- Standard-Duty |
| Replacement Gasket | 27500 |
| Replacement Head Flange Gasket | 27500 |
| California Proposition 65 | WARNING: Cancer. For more info visit www.P65Warnings.ca.gov |
| Variations | 69096, 69890 |
| Tube Material Thickness | 16g |
| Tube Style | Long Tubes |
| Air Conditioning | Yes |
| Automatic Transmission - Column | Yes |
| Automatic Transmission - Floor | Yes |
| Manual Transmission - Column | No |
| Manual Transmission - Floor | No |
| Collector Attachment | 3 in. |
| Collector Diameter | 3 in. |
| Collector Size | 3 in. |
| Collector Style | BALL and SOCKET Style (Gasketless) |
| Transmission Compatibility | may encounter clutch interference if cross shaft behind driver side rear port |
| Chassis Compatibility | NOT For Vehicles With Offset (right) Engine Position! |
| Power Steering | Yes |
| Reducer Outlet Size | 2-1/2 in. |
| Contents | headers, gaskets (when applicable), 3-bolt exhaust adapters, hardware |
| Tube Length | Long Tubes |
| Drivetrain | 2WD |
| E.O. # | No |
| Emissions Notes | Not Legal For Street Use on '75-Later Model Years! Legal for off-road use only. |
| Finish | Uncoated |
| Finish Type | UNCOATED Mild Steel! Shipped with Temporary Paint. |
| Flange Style | Standard |
| Flange Thickness | 0.3125 in. |
| Header Port Shape | Round |
| Header Style | Long Tube |
| Notes | 67-91 GM. Full Size Blazer, Jimmy 283-400 2-4WD |
| Port Shape | Round |
| Material | Mild Steel |
| Tube Design | Standard |
| Title | HEDMAN HEDDERS STANDARD UNCOATED HEADERS; 1-5/8 IN. TUBE DIA.; 3 IN. COLL.; FULL LENGTH DESIGN |
| Exhaust System Dia | 2-1/2 in. |
