Hedman Street Headers - 1.75 in Primary - 3 in Collector - Black Paint - Big Block Chevy - GM Fullsize SUV / Truck 1967-91 - Pair HASZ20DK These X-pipe assemblies can be

These X-pipe assemblies can be used with the factory rear muffler sections or with Flowmaster Axle-back kits

Available in cast or polished finish

ApprovedDoes not require an MSD Ignition ControlSupplied with a HEI style distributor cap and rotor (accepts Cap-A-Dapts)Mechanical advance assembly can be locked out for crank trigger systemsMaintenance-free magnetic pickup and precision reluctor create stable trigger signals throughout the rpm rangePolished steel shaft is QPQ coated and guided by sealed ball bearingsVacuum advance canister for improved economy (can be locked out)Easy-to-adjust mechanical advance with supplied springs and stop bushingsPowerful built-in module produces a 7

1973-1976 Mercury Cougar

Welded/Threaded inserts

Hedman Street Headers - 1.75 in Primary - 3 in Collector - Black Paint - Big Block Chevy - GM Fullsize SUV / Truck 1967-91 - Pair HASZ20DK These X-pipe assemblies can beHedman Hedders Standard Duty Uncoated Headers; 1 3 4" Tube; 3" Coll; Full Length Design; 67 91 1 2 1 Ton 2WD Truck 396 502; 68 91 3 4 Ton 4WD Truck 396 502; 68 95 Chevrolet Class "A" Full Size Motorhome 396 502 ; Not For 1990 93 Chevrolet 454 Ss Truck Hedman Hedders Specialty Engine Swap Header 69110 Natural Finish Tube Size 1. 75 in. Collector Size 3 in. w o Smog Injection Or Injection Heads Chevy 396 502 cid Thermal Protection Up To 1300 Deg. Will