| Bolt Size | 3/8-16 x 3/4 |
| CARB (California) Compliant | No |
| Catalytic Converter(s) Included | No |
| Collector Attachment Type | Slip fit |
| Collector Diameter | 4.00 inch, 4 Inch |
| Color | Black |
| Cylinder Head Port Shape | Round |
| Emission Code | 3, 4 |
| Engine | Big Block Chevy |
| Flange Style | Standard |
| Flange Thickness | 0.31" |
| Gasket(s) Included | Yes |
| Header Finish | Black Paint |
| Header Style | Long Tube |
| Header Tube Type | Long Tube |
| Material Type | Steel |
| MFG. Part # | 2222HKR |
| Motor Mounts Included | No |
| Part Number | 2222HKR |
| Primary Tube Dia. | 2-1/8 inch |
| Primary Tube Diameter | 2-1/8" |
| Primary Tube Gauge | 18-gauge |
| Product Type | Headers |
| Sold in Quantity | Pair |
| Tube Material | Mild Steel |
| Tuned | Yes |
| UPC | 700414007182 |