Hedman Street Headers - 58-64 Bel Air/Biscayne / 58-61 Brookwood / 58 Del Ray H760C42XL Because these mufflers are so

Because these mufflers are so aggressive

Vehicle Applications: 1978-1980 Buick Regal CID 305 GAS

COMP Cams Triple Valve Springs exceed the expectations of today's engine builders and racers

Repeat damper removal and installation can reduce vibration control

Stock Car type is 16" x 27" trapezoid with 1" webbing

Hedman Street Headers - 58-64 Bel Air/Biscayne / 58-61 Brookwood / 58 Del Ray H760C42XL Because these mufflers are soHedman Hedders Standard Uncoated Headers; 1 5 8" 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 in the USA since 1954, and they've been manufacturing long and MID LENGTH tube headers for Chevy