Hedman Hedders has been manufacturing quality headers in the USA since 1954, and they've been manufacturing Chevy S10, GMC S15, V8 engine swap specific headers for over 20 years. 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 designed specifically for installing a Small Block Chevy 283-400 (Gen 1) engine into 1982-1993 Chevy S10/Blazer, GMC S15/Jimmy trucks. The smooth 1-5/8 in. tube design provides ample exhaust flow to let your 283-400 SB Chevy engine breathe easy, and produce maximum horsepower and torque.
To ensure a proper installation, it is recommended that these headers be installed with Trans-Dapt Performance Product's #4690 engine swap mount kit, Turbo 350 and 168 tooth flywheel.
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 1-5/8 in. Long-Tube Engine Swap Headers For SB Chevy In 2WD S10 69490
Specifications:
| Description_DEF | [B@735acfef |
| Description_DES | [B@47d58f5e |
| Description_EXT | [B@11cebf2f |
| Description_FAB | [B@2eec89e7 |
| Description_FAB | [B@bec1e62 |
| Description_FAB | [B@6028cf3e |
| Description_FAB | [B@47b33d3 |
| Description_FAB | [B@4e92210a |
| Description_FAB | [B@25e639b4 |
| Description_INV | [B@3915309 |
| Description_MKT | [B@5ea91d03 |
| Description_SHO | [B@1ecedad |
| Header Material | Mild Steel |
| Tube Diameter | 1-5/8 in. |
| Motor Mounts Included | No |
| Installation Notes | The use of a DELCO-RAMEY #323-255 or Chevrolet #187655 starter may be required. |
| Head Type | Factory Heads |
| 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 |
| Mounting Hardware Included | Yes |
| Tube Size | 1-5/8 in. |
| Reducers Included | Yes |
| 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 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 | 69496 |
| Tube Material Thickness | 16g |
| Tube Style | Long Tubes |
| Air Conditioning | Yes |
| Automatic Transmission - Column | No |
| Automatic Transmission - Floor | Yes |
| Manual Transmission - Column | No |
| Manual Transmission - Floor | No |
| Tube Length | Long Tubes |
| Material | Mild Steel |
| Tube Design | Standard |
| Title | HEDMAN HEDDERS ENGINE SWAP HEADERS; 1982-93 2WD S-10 / S15, 283-400 SB CHEVY; LONG TUBE- UNCOATED |
| Flange Thickness | 0.3125 in. |
| Footnotes | 130. Must use Trans Dapt Motor Mount Kit #4690. |
| Exhaust System Dia | 2-1/2 in. |
| Reducer Outlet Size | 2-1/2 in. |
| Drivetrain | 2WD Only! |
| Collector Attachment | 3 in. |
| Collector Diameter | 3 in. |
| Collector Size | 3 in. |
| Collector Style | BALL and SOCKET Style (Gasketless) |
| Engine | Chevy SB 283-400 (Gen 1) 1958-86 |
| Transmission Compatibility | For use with TH350 transmission and 168 tooth flywheel. |
| 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 |
| Notes | Two tubes on each side have slip-fit joints for easier installation. |
| Finish | Uncoated |
| Finish Type | UNCOATED Mild Steel! Shipped with Temporary Paint. |
| Oil Filter Compatibility | Use of Trans-Dapt 1122 oil filter relocation kit recommended with these headers |
| Power Steering | Yes |
