Hedman Street Headers - 74-78 Mustang II 31014BK Exhaust ports are 80cc and

Exhaust ports are 80cc and bolt pattern are raised

epoxy over mold and brass contacts with balanced rotor

1/8 in NPT Female Gauge Port

Tested with factory dampers

greater strength

Hedman Street Headers - 74-78 Mustang II 31014BK Exhaust ports are 80cc andHedman Hedders Standard Uncoated Headers; 1 1 2" 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 1 2" Tube