Hedman Street Headers - 1.75 in Primary - 3 in Collector - Black Paint - Mopar B / RB-Series - Dodge Fullsize Truck / Van 1977-81 - Pair Tach Recall Switch Features:Billet housing is 5/8” smaller

Features:Billet housing is 5/8” smaller in diameter than stock Ford distributorsMust be used with an MSD Ignition ControlSupplied with small diameter cap with HEI style terminals and race rotor (will accept 8441 Cap-A-Dapt)Nylon pads ensure smooth operation of the advance weightsAdvance weight pins are staked and tig welded to the plateMechanical advance assembly can be locked out for crank trigger systemsAdvance plate and weights are fine blanked from chrome moly steel and QPQ coated for friction reductionPolished steel shaft is QPQ coated and guided by a sealed ball bearingMaintenance-free magnetic pickup and precision reluctor create stable trigger signals throughout the rpm rangeCNC machined billet aluminum housing and billet aluminum baseEasy-to-adjust mechanical advance with supplied springs and stop bushings

12-3/8" post centers

Vehicle Applications: 1987- present small block Chevrolet originally equipped with hyd rollers1997- present Gen III/IV/V LS/LT engine platformsNot compatible with Active Fuel Management (AFM)

Use collar to adjust ride height and wedgeAllows 2in

Pinion Support Stud

Hedman Street Headers - 1.75 in Primary - 3 in Collector - Black Paint - Mopar B / RB-Series - Dodge Fullsize Truck / Van 1977-81 - Pair Tach Recall Switch Features:Billet housing is 5/8” smallerHedman Hedders Standard Uncoated Headers; 1 3 4" Tube Diameter; 3" Collector; Full Length Design Hedman Hedders Painted Hedders Exhaust Header 79220 Tube Size 1. 75 in. Collector Size 3 in. w o Smog Injection Or Injection Heads Highest Quality Materials Computerized Precision Hand Tested; Sturdy Leak Proof Welds Durable And Affordable Hedman Hedders has been manufacturing quality headers and exhaust components in the USA since 1954. Hedman Hedders