Hedman Street Headers - 68-73 Chevelle / 67-81 Camaro / 69-79 Nova / 68-77 El Camino / 65-74 Bel Air/Impala MT130BK Flowtech innovations include their unique

Flowtech innovations include their unique Afterburner headers which separated the odd firing cylinders with a velocity tube to improve scavenging

GM Fullsize Truck 2011-19

4 AN Male to 10 mm x 1

Installation is simple using the included hardware to mount the cover plate

'66-70 Fairlane

Hedman Street Headers - 68-73 Chevelle / 67-81 Camaro / 69-79 Nova / 68-77 El Camino / 65-74 Bel Air/Impala MT130BK Flowtech innovations include their uniqueHedman Hedders Standard Uncoated Headers; 1 3 4" Tube Diameter; 3" Collector; Mid Length Design Hedman's Standard duty, Uncoated Hedders are manufactured using 18 gauge, mandrel bent primary tubes (some models built using thicker 16 or 14 gauge tubing), and 1 4 flanges (some models use 3 8" flanges). Hedman Hedders has been manufacturing quality headers in the USA since 1954, and they've been manufacturing long and MID LENGTH tube headers for Chevy