The Pro-Billet Y-Block Distributor is built around a CNC-machined billet aluminum housing that is fit with a sealed ball bearing guide for stability and endurance. From timing accuracy, a maintenance-free magnetic pickup reliably triggers the MSD Ignition Control. Product Features:Vacuum advance canister for improved economy (can be locked out)CNC machined billet aluminum housing and billet aluminum baseMaintenance-free magnetic pickup and precision reluctorCreates stable trigger signals throughout the rpm rangeQPQ coated polished steel shaft; guided by sealed ball bearingsAdvance plate and weights are fine blanked from chrome moly steelQPQ coated for friction reductionMech. advance assem. can be locked out for crank trigger systemsAdvance weight pins are staked and tig welded to the plateNylon pads ensure smooth operation of the advance weightsRequires an MSD ignition controlMay hit firewall seam on 57-59 full size cars.
