Hedman Street Headers - 71-73 Mustang 4063 Improves Track PerformanceFord Racing offers

Improves Track PerformanceFord Racing offers a variety of products for hard core racing and street vehicles

600'' exhaust valves with AFR's hardened ductile iron interlocking valve seats

yet they are still able to easily flow numbers that are in raised runner head territory

Ford EcoBoost V6 / Ford Modular

Hedman Street Headers - 71-73 Mustang 4063 Improves Track PerformanceFord Racing offersHedman Hedders Standard Uncoated Headers; 1 3 4" Tube Diameter; 3" Collector; Full 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 and exhaust components in the USA since 1954. Hedman Hedders Standard Uncoated Headers 1 3 4" Tube