FlowTech Upright Headers
Part # 11553FLT
Features
- CNC Mandrel-bent tubes provide consistent tubing diameters for smooth flow and increases the cylinder scavenging effect and improves engine breathing
- Heavy duty 16-gauge 409SS tubing for increased strength and durability
- 2-1/4” tubing diameter for increased exhaust flow increasing performance and improved throttle response
- Extended 4” collector for maximum strength and exhaust flow
- Extra thick 7/16” header flange for a leak-free seal and maximum strength
- Welded-in collector merge spears to control exhaust gas re-entry into primary tubes
- Center of exhaust port to end of collector length is 33-1/2"
Description
Flowtech Headers are the perfect combination of quality and value. These Big Block Chevy Upright headers available in 2-1/4" tube diameters are ideal for even big cubic inch Big Block Chevy engines
Specifications
| Air Injection Tubes | No |
|---|---|
| Application | Big Block Chevy |
| Bolt Size | 3/8-16 x 3/4 in |
| Bolts Included | Yes |
| CARB (California) Compliant | No |
| Catalytic Converter Quantity | 0 |
| Collector Attachment | Weld-On |
| Collector Diameter | 4.00 in |
| Collector Port Diameter | 4.00 in |
| Collector Reducer Included | No |
| Color | Black |
| Design | Upright |
| drive | 2WD |
| EGT Port | No |
| Engine | GM Big Block |
| Finish | Painted |
| Flange Thickness | 0.4375 in |
| Gasket Or Seal Included | Yes |
| Grade Type | Performance |
| Header Series | Flowtech |
| Header Style | Upright |
| Material | 409 Stainless Steel |
| Mounting Hardware Included | Yes |
| Oxygen Sensor Port | No |
| Port Shape | Round |
| Primary Tubing Diameter | 2.25 in |
| UPC / GTIN | 00090127743614 |
| Warranty | Manufacturer's Limited 90 Day Warranty |