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.
Specifications:
| Description_ASC |
Breaking in an engine with ceramic coated headers WILL result in damage to the coating and will VOID all warranties. Hooker recommends using cast iron exhaust manifolds or old headers during your engine break-in period to avoid damaging your coated damage. Please call Hooker tech service at 270-781-9741 for additional information regarding ceramic coated exhaust products. The use of header wraps can cause the header tubes to crack or rust due to excessive heat and moisture build-up. Hooker does not recommend the use of header wraps as this will void the warranty. Hooker long tube headers do not come with header reducers. |
| Description_DES |
Hooker Super Competition Long Tube Headers - Painted |
| Description_DEF |
Exhaust Header |
| Description_FAB |
Tuned Length Tubes For Max Exhaust Scavenging/Velocity |
| Description_FAB |
Long Transition Collector For Decreased Back Pressure |
| Description_FAB |
All Hardware Included |
| Description_FAB |
Mandrel Bent Tubing For Smooth Exhaust Flow |
| Description_FAB |
Machined Flange Provides Finest Fit |
| Description_FAB |
Best Industry Welds For Durable Design |
| 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_INV |
HDR, CHEV RACE CAR |
| 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_SHO |
Exhaust Header |
| Description_KEY |
camaro; nova; race; adjustable; bbc; big; block; chevy; tuned |
| Header Style |
Long Tube |
| Coated Finish |
Black |
| Product Type |
Headers |
| Warning |
California Proposition 65 |
| WARNING CA Proposition 65 Message |
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
| Collector Diameter |
4.000 in. |
| Brand |
Hooker |
| Port Shape |
Round |
| Head Style |
Long-Tube |
| Tube Diameter |
2.250 in. |
| Tube Direction |
Down Swept |
| Primary Tube Diameter |
2.250 in. |
| Engine Make/Size |
Chevy Big Block (396-454) |
| WARNING CA Proposition 65 |
Yes |
| Tube Material |
Mild Steel |
| Collector Tube Size |
4.000 in. |
| Bolt size |
3/8-16 x 3/4 |
| Emission Code |
4 |
| Header Finish |
Black Paint |
| Primary Tube Dia. |
2-1/4 inch |
| Finish |
Black Paint |
| Material |
Mild Steel |
| Application |
Automotive |
| CARB (California) Compliant |
No |
| Engine |
GM Big Block |
| Length |
16.0000 |
| Width |
21.0000 |
| Height |
45.0000 |
| Weight |
54.0000 |
