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 Big Block 7.4L Chevy exhaust system to bolt up, even if it is not perfectly aligned with the header collectors.
These uncoated, LONG-TUBE headers fit 1988-95 4WD (only) 3/4 and 1 ton Chevy Trucks with a factory 7.4L Chevy powerplant (check the application listings for exact fitment). The smooth 1-3/4 in. tube design provides ample exhaust flow to let your OBS Chevy truck's Big Block 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 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.
Hedman Hedders Long-Tube Headers For 1988-95 GM 4WD Trucks with 7.4L 69390
Specifications:
| Description_DEF | [B@68d84f10 |
| Description_DES | [B@6db9ccec |
| Description_EXT | [B@25913f86 |
| Description_FAB | [B@256e399b |
| Description_FAB | [B@f6452e9 |
| Description_FAB | [B@2c993145 |
| Description_FAB | [B@58465f |
| Description_FAB | [B@54ae052e |
| Description_FAB | [B@79f0e648 |
| Description_INV | [B@1c86f32a |
| Description_MKT | [B@5e2e345b |
| Description_SHO | [B@7a8dcdc5 |
| Title | HEDMAN HEDDERS STANDARD UNCOATED HEADERS; 1-3/4 IN. TUBE DIA.; 3 IN. COLL.; FULL LENGTH DESIGN |
| Tube Diameter | 1-3/4 in. |
| Reducers Included | Yes |
| 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 |
| Y-Pipe Included | No |
| Variations | 69396, 69398 |
| Quantity | Sold as a pair. |
| Primary Tube Gauge | 16g |
| Primary Tube Diameter (in) | 1.75 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 | Stock Profile Heads |
| Header Construction | MILD STEEL- Standard-Duty |
| Replacement Gasket | 27530 |
| Replacement Head Flange Gasket | 27530 |
| California Proposition 65 | WARNING: Cancer. For more info visit www.P65Warnings.ca.gov |
| with A.I.R. System | No |
| Tube Size | 1-3/4 in. |
| Tube Style | Long Tubes |
| Air Conditioning | Yes |
| Automatic Transmission - Column | Yes |
| Automatic Transmission - Floor | No |
| Manual Transmission - Column | No |
| Manual Transmission - Floor | Yes |
| Tube Material Thickness | 16g |
| Material | Mild Steel |
| Tube Design | Standard |
| Tube Length | Long Tubes |
| Flange Thickness | 0.3125 in. |
| Footnotes | 127. Late Model Chassis. ENGINE OFFSET to passenger side of vehicle. |
| 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 | 88-95 GM 1/2, 3/4, 1 Ton Truck/SUV 396-502 |
| Collector Style | BALL and SOCKET Style (Gasketless) |
| Contents | headers, gaskets (when applicable), 3-bolt exhaust adapters, hardware |
| Header Style | Long Tube |
| E.O. # | No |
| Emissions Notes | Not Legal For Street Use on '75-Later Model Years! Legal for off-road use only. |
| Header Port Shape | Round |
| Port Shape | Round |
| Flange Style | Standard |
| Finish | Uncoated |
| Finish Type | UNCOATED Mild Steel! Shipped with Temporary Paint. |
| Power Steering | Yes |