ARP Main Studs Mazda Miata 1989-2005 vendor_ACL Proper bed-in procedure required for

Proper bed-in procedure required for optimal performance

50" recirculation port

150-PSI pump nozzle with three different sized jets

Brian Crower valve springs are wound from only the highest grade

ARP Main Studs Mazda Miata 1989-2005 vendor_ACL Proper bed-in procedure required forPart #: 218 5401 There are many important reasons to use ARP main stud kits for your 1. 6 or 1. 8 Mazda Miata, including the elimination of main cap walk and fretting, as well as protecting the threads in your engine block. Every ARP main stud kit exceeds the most stringent aerospace specifications. All kits come complete with hardened parallel ground washers and aerospace quality nuts. Some applications have provisions for mounting windage trays and