PennGrade 1 SAE 50 High Performance Oil - Case of 12 - 1 Quart Bottles Conrod 4 Stage Retard Control

4 Stage Retard Control

Inside tang to taper relationship held tightly for repeatable valve spring installed heights

5 in OD Spring

Ford Fullsize Truck 2011-22

0" boot - "3L3E" marked on top of original equipment coil

PennGrade 1 SAE 50 High Performance Oil - Case of 12 - 1 Quart Bottles Conrod 4 Stage Retard ControlHeavy viscosity, straight grade motor oil designed to provide superior lubrication to high performance competition engines fueled by gasoline, methanol or nitromethane. Superior alcohol separation assures continual lubricant protection to the engine. PENN GRADE 1(R) High Performance Oils are specially formulated using high quality PENN GRADE? base stocks and select additive technologies to meet the stringent lubricating demands of high performance,