ARP 145-2503 Square Drive Balancer Bolt Kit for CHRYSLER ymm_41 Newer EFI applications may require

Newer EFI applications may require the purchase of additional fasteners

This provides a more even clamping force on the head

The ARP main stud kit is engineered to improve bottom-end strength and reliability in high-performance engine builds

THIS PRODUCT DOES NOT MEET EMISSION COMPLIANCE REQUIREMENTS FOR STREET OR HIGHWAY USE

NOTE: The 30-4100 Wideband UEGO Gauge Controller that uses the Bosch 4

ARP 145-2503 Square Drive Balancer Bolt Kit for CHRYSLER ymm_41 Newer EFI applications may requireSpecifications Socket Size(s) 1 1 8 hex, 1 2 square drive internal Material: 8740 Chrome Moly Finish: Black Quantity: Single Kit Instructions