Hedman Street Headers - 1.75 in Primary - 3 in Collector - Black Paint - Oldsmobile V8 - Cutlass 1978-81 - Pair 11182AB Every Competition Engineering Kit has

Every Competition Engineering Kit has been designed to fit the specific application with only minor modifications necessary for installation

437 in Body at Thread

Unit includes black powder-coated aluminum frame

Clevite Main Bearing Set MS667P20

Comes with all necessary hardware and the threads are Heli-coiled

Hedman Street Headers - 1.75 in Primary - 3 in Collector - Black Paint - Oldsmobile V8 - Cutlass 1978-81 - Pair 11182AB Every Competition Engineering Kit hasHedman Hedders Standard Uncoated Headers; 1 3 4" 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 3 4" Tube