85-90 Amc Wagoneer 360

The Hedman 85-90 AMC Wagoneer 360 headers are purpose-built exhaust manifolds designed for first-generation and early second-generation Wagoneer owners seeking improved engine breathing and exhaust scavenging. These headers are ideal for those looking to enhance the performance of their 360-cubic-inch engines, whether maintaining stock power or pursuing a more aggressive setup.

Hedman's engineering focuses on optimizing tube diameter sequencing and collector design to maximize the scavenging effect, which helps pull residual exhaust gases from the cylinder head. The headers feature mandrel-bent tubing to ensure consistent wall thickness and eliminate flow restrictions, while the durable coating and material selection provide resistance to thermal cycling and corrosion, crucial for older vehicles.

These headers are designed to fit 1985–1990 AMC Wagoneer models equipped with the 360-cubic-inch engine, making installation straightforward for those with basic mechanical skills. The compact design respects factory clearances while delivering measurable improvements in mid-range torque and top-end flow, making them a valuable upgrade for any Wagoneer enthusiast.