ARP-202-5403 (Official ARP Kit in a Blue sealed ARP Box W Grease).
ARP Main Stud, 202-5403 (Official part number)
ARP RB25 RB26 RB30 main stud kit (8740 Material)
All RB20/RB25/RB26/RB30 Engines
ARP202-5214 is the exact same kit as ARP202-5403, the only difference being is that ARP202-5214 is a kit we assemble here (from ARP) that will not include the Blue box and grease.