Main Stud Kit for Mazda 1.6L (B6) & 1.8L (BP) DOHC Miata (12 pt nuts)

Main Stud Kit for Mazda 1.6L (B6) & 1.8L (BP) DOHC Miata (12 pt nuts)There are many important reasons to use ARP main stud kits, including the elimination of main cap walk and fretting, as well as protecting the threads in your engine block. All kits come complete with hardened parallel ground washers and high quality nuts. Some applications have provisions for mounting windage trays and have specially designed standoff studs with serrated lock nuts to position the windage tray and lock it securely in place. The studs

They’re application-specific

the harmonic damper absorbs incredible amounts of kinetic energy

reciprocating and valve train components

ARP offers two styles of Flywheel/Flexplate bolts: The premium grade Pro Series

ARP uses a unique manufacturingprocess where the alignment sleeve is roll formed onto the shaft(not welded or pinned)

The ARP Stainless material is not affected by corrosion or extreme heat

The parts are CNC machined from solid aluminum billet (6061) or 1018 mild steel

This procedure ensures complete heat penetration and the resultsare far superior to those lesser quality studs from other manufacturerswho just dump pieces in a basket and hope for the best

The stainless has the added advantage of being rust and corrosion resistant

It’s important to note that lesser quality studsare not even centerless ground – the material is thread rolled inbar stock form (mostly before heat-treat

Stud kits come complete with nuts and washers

Pro Series kits are available in standard (8740) 190