Hedman Elite Ultra-Duty Headers - 1.75 in Primary - 3 in Collector - Metallic Ceramic - Big Block Chevy - GM Fullsize SUV / Truck 1967-91 - Pair 20163 60 Micron Stainless

60 Micron Stainless

Precision machined aluminum castings

Sway bar mounting holes are reinforced with TIG welded sleeves to allow factory style sway bar mounting

Drill chip evacuation port

commonly used when qualifying or when track conditions allow for more power

Hedman Elite Ultra-Duty Headers - 1.75 in Primary - 3 in Collector - Metallic Ceramic - Big Block Chevy - GM Fullsize SUV / Truck 1967-91 - Pair 20163 60 Micron StainlessHedman Hedders Elite Headers; 1 3 4" Tube Diameter; 3" Collector; Full Length Design Hedman Hedders Elite Hedders Exhaust Header 69820 Tube Size 1. 75 in. Collector Size 3 in. Tubular Exhaust Manifold System Square Port w o Smog Injection Injection Header Ultra Duty 14 Gauge Primary Tubes Ceramic Metallic Coating Stands Temp. Up To 1400 F Durable 3 8 in. Flanges Prevent Warping And Stands Up Better Against Brutal Punishment Durable And Affordable