Hooker's RacingHeart Big Block Chevy Downswept, 3-Step Dragster Headers feature 2.125 inch/2.25 inch/2.375 inch stepped primary tubes to maximize exhaust flow, resulting in horsepower and torque gains over a broad rpm range. The 4.5 inch merge collector with merge spear design improves the transition of the exhaust pulse from the primary tube to the collector and maximizes the scavenging effect on the exhaust pulse. This helps maintain the velocity of the pulses as they travel through the collector. These headers are ideal for big block Chevy engines making over 1000 horsepower. They are available in both Chrome plated Mild Steel and Polished 304 Stainless Steel.
Features:
2.125 in./2.25 in./2.375 in. Stepped Primary Tubes Maximize Exhaust Flow, Resulting in Horsepower and Torque Gains Over a Broad RPM Range
4.5 in. Merge Collectors Improve the Transition from the Primary Tubes to the Collector, Helping to Increase Exhaust Pulse Velocity
Collectors Feature Merge Spears for Increased Exhaust Velocity and Scavenging
3/8 in. Thick Header Flanges for Strength and Maximum Sealing Surface
Available in both Chrome Plated Mild Steel and Polished 304 Stainless Steel
Offers a Better Combination of Low End Torque and High End Horsepower Compared to a Non Stepped Header
Specs
Brand
Hooker RacingHeart
Collector Diameter
4-1/2 inch
Emission Code
4
Engine
Big Block Chevy
Header Finish
Polished
Header Style
Long Tube
Primary Tube Dia.
2.125"/2.25"/2.375"
Product Type
Headers
Tube Length
30 inch
Tube Material
304 Stainless Steel
Part Number
2502-2HKR
Emissions
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
*Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.
Some parts are not legal for use in California or other states with similar regulations.