Hedman Street Headers - 83-88 Thunderbird / 79-85 Mustang HSYTH11SASM61 Valve Spring Kits are complete

Valve Spring Kits are complete kits that contain non-rotator valve springs

24 Spline Drive Flange

spec and custom built engines with clearances under

700 in I-Beam Rods

Hedman Street Headers - 83-88 Thunderbird / 79-85 Mustang HSYTH11SASM61 Valve Spring Kits are completeHedman Hedders Standard Uncoated Headers; 1 1 2" Tube Diameter; 2 1 2" 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 and exhaust components in the USA since 1954. Hedman Hedders Standard Uncoated Headers 1 1 2"