All of our Holley orders are done once a week from USA, if you need it sooner please contact us prior to ordering. Complete delivery may take up to 14 days.
Big Block Chevy 2-1/4" Upright Headers with 4" Collector- Natural Finish
Flowtech Headers are the perfect combination of quality and value. These Big Block Chevy Upright headers available in 2-1/4" tube diameters are ideal for even big cubic inch Big Block Chevy engines
Features:
CNC Mandrel-bent tubes provide consistent tubing diameters for smooth flow and increases the cylinder scavenging effect and improves engine breathing
Heavy duty 16-gauge 409SS tubing for increased strength and durability
2-1/4” tubing diameter for increased exhaust flow increasing performance and improved throttle response
Extended 4” collector for maximum strength and exhaust flow
Extra thick 7/16” header flange for a leak-free seal and maximum strength
Welded-in collector merge spears to control exhaust gas re-entry into primary tubes
Center of exhaust port to end of collector length is 33-1/2"
