NGK Laser Iridium Spark Plug 12 mm Thread 26.5 mm Reach Gasket Seat - Stock Number 4912 YA0823 KRC R-Lok Pulley Drive System

KRC R-Lok Pulley Drive System

Perfect for precision measurement of combustion chambers

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

1967-1986 Mercury Marquis

Each ARP kit includes the correct number of fasteners for your application

NGK Laser Iridium Spark Plug 12 mm Thread 26.5 mm Reach Gasket Seat - Stock Number 4912 YA0823 KRC R-Lok Pulley Drive SystemProduct Description: Spark Plug NGK Laser Iridium 12 mm Thread 26. 5 mm Reach Gasket Seat Stock Number 4912 Resistor Sold Individually With over 80 years of automotive expertise, we are driven by extreme dedication to performance and quality. From OEM to aftermarket, our people push the boundaries of innovation to bring the latest technologies to market under the NGK and NTK brands. Since 1936, NGK Spark Plugs has been the world leader in technology,