Hedman Street Headers - 71-73 Mustang 4063 Most Accu-Drives require no modifications

Most Accu-Drives require no modifications to the engine block

Mounting Stud

Ford EcoBoost V6 / Ford Modular

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

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

Hedman Street Headers - 71-73 Mustang 4063 Most Accu-Drives require no modificationsHedman 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