Stress-relieved immediately after molding to ensure dimensional stability, this HEI-style performance replacement distributor cap is an impenetrable barrier to arc-through and crossfire. Engineered specifically for 5.2L and 5.9L Dodge and Jeep V8 engines, this cap has highly conductive, corrosion-resistant brass inserts and stainless steel rotor springs for unrestricted spark-energy flow, maximum energy transfer, and more power.