| Crossover Pipe Included | NO |
| Automatic Transmission - Floor | Yes |
| Header Port Shape | Square |
| Variations | 69566 |
| motor mounts included | NO |
| Cylinder Head | Stock Profile Heads |
| Tuned | NO |
| Head Type | Factory Heads |
| Finish Type | UNCOATED Mild Steel! Shipped with Temporary Paint. |
| Y-Pipe Included | No |
| Engine | Chevy SB 283-400 (Gen 1) 1958-86 |
| Tube Diameter | 1-3/4 in. |
| Reducer Outlet Size | 3 in. |
| header style | Mid-Length Tube |
| Primary Tube Diameter (in) | 1.75 in. |
| Installation Hardware Included | Yes |
| Gasket Or Seal Included | Yes |
| Transmission Mount/Crossmember (Included) | No |
| Flange Thickness | 0.3125 In. |
| bolts/studs included | Yes |
| Header Material | Mild Steel |
| Contents | headers, gaskets (when applicable), 3-bolt exhaust adapters, hardware |
| Weld-Up | No |
| California Proposition 65 | WARNING: Cancer. For more info visit www.P65Warnings.ca.gov |
| Drivetrain | 2WD Only! |
| Manual Transmission - Floor | Yes |
| Automatic Transmission - Column | No |
| Motor Mounts (Included) | NO |
| Catalytic Converter(s) Included | No |
| Emissions Notes | NOT LEGAL FOR STREET USE ON '75-LATER MODEL YEARS! Legal for off-road use only. |
| with EGR | No |
| Gasket # | 27560 |
| Header Finish | Uncoated |
| Cylinder Head Port Shape | Square |
| Power Steering | Yes |
| Exhaust System Dia | 3 in. |
| with A.I.R. System | No |
| Package Contents | Headers, reducers (exhaust adapters), gaskets, mounting hardware |
| Port Shape | Square |
| Tube Size | 1-3/4 in. |
| Finish | Uncoated |
| Tube Length | MID-LENGTH Tubes |
| Replacement Gasket | 27560 |
| Tube Style | Mid-Length |
| Primary Tube Gauge | 16g |
| Notes | (Straight plug cylinder heads ONLY!) |
| Header Construction | MILD STEEL- Standard-Duty |
| reducers included | Yes |
| E.O. # | No |
| Tube Design | Standard |
| Collector Style | 3-Bolt Gasket Style Flange |
| Manual Transmission - Column | No |
| Collector Bolts Included | Yes |
| Header Fasteners Included | Yes |
| Quantity | Sold as a pair. |
| Title | HEDMAN HEDDERS S10 / SB CHEVY ENGINE SWAP HEADERS 1-3/4 IN.- UNCOATED |
| Tube Material Thickness | 16g |
| Mounting Hardware Included | Yes |
| Material | Mild Steel |
| Replacement Head Flange Gasket | 27560 |
| Air Conditioning | Yes |
| Collector Attachment | 3 in. |
| Flange Style | Standard |
| Collector Diameter | 3 in. |
| Collector Size | 3 in. |
| Product Details | Motor Mount Kit available. Part # 9906 |
| Part Terminology | Exhaust Header |
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.
These uncoated, MID-LENGTH TUBE headers are designed specifically for installing a Small Block Chevy 283-400 (Gen 1) engine into 1982-2004 Chevy S10/Blazer, GMC S15/Jimmy 2WD trucks. Fits both manual and automatic transmission trucks. The large, smooth 1-3/4 in. tube design provides excellent exhaust flow to let your transplanted 283-400 SB Chevy engine breathe easy, and produce additional horsepower and torque over factory 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 header and collector gaskets, header flange bolts and collector bolts.
Hedman Hedders is so confident in the quality of its headers that these headers are factory backed by a Limited Lifetime Warranty.
