Hedman Street Rod Tight Tubes Hedders - SBC - 55-57 Bel Air/One-Fifty/Two-Ten D.S.S. Racing 3/8" base thread diameter and

3/8" base thread diameter and

high rpm is limited by the incorrect position of the lifter's internal piston

or surpasses open headers while dramatically reducing exhaust sound levels across the rpm range with their patented wide-spectrum sound cancellation

Simpson's Air Boss handmade 8-foot and 10-foot canopy drag parachutes deliver enough stopping power for most drag cars that reach up to 200 mph

Hedman Street Rod Tight Tubes Hedders - SBC - 55-57 Bel Air/One-Fifty/Two-Ten D.S.S. Racing 3/8" base thread diameter andHedman Hedders Standard Uncoated Headers; 1 5 8" Tube Diameter; 2 1 2" Collector; Tight Tubes Design The standard duty Hedman Hedders in this section come from the factory with an extremely durable, protective ceramic metallic coating. Hedman Hedders, pioneered the use of ceramic metallic coatings, back in the early 80's. Previously used exclusively in the aerospace industry, Hedman Hedders recognized it's potential for improving both the lifespan,