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_DEF |
Exhaust Header |
Description_DES |
Hooker Super Competition Long Tube Headers - Ceramic Coated |
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_KEY |
camaro; nova; adjustable; race; header; bbc; big; block; chevy; tuned |
Description_INV |
HDR MCTBC,RACE,BB,CHE |
Description_EXT |
Super Competition Long Tube Header; Metallic Ceramic Coating; Tube Size 2.25 in. OD x 28 - 35 in.; Collector Size 4 in. OD/Length 12 in.; Port Shape Round; Painted; |
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 |
Primary Tube Dia. |
2-1/4 inch |
Header Finish |
Silver Ceramic |
Finish |
Silver Metallic Ceramic |
CARB (California) Compliant |
No |
Emission Code |
4 |
Tube Direction |
Down Swept |
Application |
Automotive |
Primary Tube Diameter |
2.250 in. |
Material |
Mild Steel |
Port Shape |
Round |
WARNING CA Proposition 65 |
Yes |
Collector Diameter |
4.000 in. |
Tube Diameter |
2.250 in. |
Collector Tube Size |
4.000 in. |
Tube Material |
Mild Steel |
Engine Make/Size |
Chevy Big Block (396-454) |
WARNING CA Proposition 65 Message |
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
Head Style |
Long-Tube |
Coated Finish |
Metallic Ceramic |
Bolt size |
3/8-16 x 3/4 |
Brand |
Hooker |
Engine |
GM Big Block |
Header Style |
Long Tube |
Product Type |
Headers |
Warning |
California Proposition 65 |
Length |
15.0000 |
Width |
21.0000 |
Height |
45.0000 |
Weight |
56.0000 |