Description
Hooker has a complete line of engine swap headers, front frame mounts and transmission mounts for popular engine swaps. Available for Chevy, Chrysler and Ford small block and big block engines. Hooker swap headers and mounts are designed to provide an exact fit when used together. Hooker swap headers add the extra horsepower and torque the serious enthusiast demands. Hooker Headers are the best single improvement you can make.
Resources
Installation Instructions
Specifications:
| Application | Automotive |
| Coated Finish | Black |
| Collector Diameter | 4.000 in. |
| Collector Tube Size | 4.000 in. |
| Description_ASC | Holley Performance Emission Code 4: This part is legal for sale or use on Racing Use Only Vehicles. The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street. WARNING: It is against the law to install this part on an Emissions Controlled Vehicle |
| Description_DEF | Exhaust Header |
| Description_DES | Super Competition Long Tube Header |
| Description_EXT | Super Competition Long Tube Header; Black Finish; Tube Size 2.25 in. OD x 28 – 35 in.; Collector Size 4 in. OD/Length 12 in.; Port Shape Round; Painted; |
| Description_FAB | All Hardware Included |
| Description_FAB | Best Industry Welds For Durable Design |
| Description_FAB | Long Transition Collector For Decreased Back Pressure |
| Description_FAB | Machined Flange Provides Finest Fit |
| Description_FAB | Mandrel Bent Tubing For Smooth Exhaust Flow |
| Description_FAB | Tuned Length Tubes For Max Exhaust Scavenging/Velocity |
| Description_INV | HDR; CHEV RACE CAR |
| Description_LAB | Proposition 65 |
| Description_MKT | Hooker Adjustable race headers allow you to change your header primary tube lengths, collector lengths and diameters and collector types (Classic 4 into 1, Merged and Split-Flow). By altering the relationship between the primary length and collector diameter and length it is possible to increase or decrease the torque and horsepower output at any specific R.P.M. level. For a slick track the header primaries or collectors can be shortened to decrease the low end torque for better traction. Larger diameter collectors will also reduce low end torque. On a good track with lots of bite, extending the primaries or collectors will pick up bottom end power for a harder launch and awesome e.t.s. Smaller collector diameters will also increase low end torque. Hooker adjustable headers have taken more Pro Stock drivers to the championship than any other brand. |
| Description_MKT | Hooker has a complete line of engine swap headers, front frame mounts and transmission mounts for popular engine swaps. Available for Chevy, Chrysler and Ford small block and big block engines. Hooker swap headers and mounts are designed to provide an exact fit when used together. Hooker swap headers add the extra horsepower and torque the serious enthusiast demands. Hooker Headers are the best single improvement you can make. |
| Description_SHO | Exhaust Header |
| Engine Make/Size | Chevy Big Block (396-454) |
| finish | Black Paint |
| Head Style | Long-Tube |
| height | 15.5 |
| length | 45.0 |
| LTL | N |
| Material | Mild Steel |
| Port Shape | Round |
| Primary Tube Diameter | 2.250 in. |
| Tube Diameter | 2.250 in. |
| Tube Direction | Down Swept |
| Tube Material | Mild Steel |
| WARNING CA Proposition 65 | Yes |
| WARNING CA Proposition 65 Message | WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
| weight | 53.85 |
| width | 20.5 |
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