Hedman HTC Hedders - 65-82 Corvette H768001 this adjusting nut set is

this adjusting nut set is designed for 7/16" rockers with a stud girdle

Renault 4-Cylinder

22 Degree Limit

Brodix 12-23 Degree HeadSince 1989

Low Profile valve covers clear air-conditioning and alternator brackets

Hedman HTC Hedders - 65-82 Corvette H768001 this adjusting nut set isHedman Hedders HTC Coated Headers; 2" Tube Diameter; 3" Collector; Full Length 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, and functionality