Description

Hooker Racingheart 3-Step Dragster Headers – ChromeBig Block Chevy, Downswept, 2.125 in. / 2.25 in. / 2.375 in. Stepped Primaries, 4.5 in. Merge Collector, ChromeHooker’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.

Air Injection Tubes:No

Bolt size:3/8-16 x 3/4 IN

Bolts Included: Yes

Collector Attachment: Slip-Fit

Collector Diameter:4.50 IN

Collector Reducer Included:No

Collector Reducer Outlet Diameter:N/A IN

Color: Silver

Design:Pro-Mod Side Exit

Drive: 2WD

EGT Port: No

Engine: Big Block Chevy

Engine: Chevrolet Small Block Gen I

Finish: Ceramic Coated

Flange Thickness: 3/8″

Gasket Or Seal Included: Yes

Grade Type: Performance

Header Series:Hooker Racingheart 3-Step Dragster Headers

Header Style: Long Tube

Material: Mild Steel

Mounting Hardware Included: Yes

Oxygen Sensor Port: No

Port Shape: Round

Primary Tubing Diameter:2 1/4 IN

Primary Tubing Diameter:2 1/8 IN

Primary Tubing Diameter:2 3/8 IN

Primary Tubing Diameter:2.125 IN

Primary Tubing Diameter:2.25 IN

Primary Tubing Diameter:2.375 IN

Quantity: Sold as a Pair

Tube Length: 30 inch

Tube Wall Thickness: 16 GU