| Bolt Size | 3/8-16 x 3/4 |
| CARB (California) Compliant, Motor Mounts Included, Weld-Up | No |
| Collector Attachment Type | 3-bolt flange |
| Collector Diameter | 3.50 inch |
| Cylinder Head Port Shape | Round |
| Emission Code | 4 |
| Engine | Big Block Chevy |
| Finish | Painted |
| Flange Style | Standard |
| Flange Thickness | 0.31" |
| GTIN Code, UPC | 700414007489 |
| Hardware Included, Tuned | Yes |
| Header Finish | Black Paint |
| Header Style, Header Tube Type | Long Tube |
| Material Type | Steel |
| MFG. Part #, Part Number | 2285HKR |
| Notes | This header has dented primary tubes from the manufacturer for proper clearance. The paint applied to these headers is a temporary coating only and is designed to burn off during use. High temperature paint or other high temperature coatings are recommended. |
| Primary Tube Dia. | 2 inch |
| Primary Tube Diameter | 2-1/8" |
| Primary Tube Gauge | 18-gauge |
| Product Type | Headers |
| Speedway Motors Catalog Part # | 425-2285HKR |
| Tube Material | Mild Steel |