Flowtech Headers are the perfect combination of quality and value. These Small Block Chevy Upright headers available in 1-5/8" and 1-3/4" tube diameters are ideal for even big cubic inch Small Block Chevy engines. They feature a merged collector coupled with a collector spear that is welded inside the collector. These components help to improve the flow and performance of the header.

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

1-5/8” and 1-3/4” tubing diameters available for increased exhaust flow increasing performance and improved throttle response

3” collector for maximum strength and exhaust flow

Extra thick header flange for a leak-free seal and maximum strength

Welded-in collector merge spears to control exhaust gas re-entry into primary tubes