Mazda MX-5 NA NB ACL Race Connecting Rod Bearings (Standard Size)

Con rod bearings for the MX-5 NA NB engine.

Half Type – Upper & Lower

Material – Tri-metal Hardened steel backs

Min Std Shaft Size – 1.7693″ / 44.940mm

Max Std Shaft Size – 1.7699″ / 44.956mm

Min Std Tunnel Size – 1.8896″ / 47.996mm

Max Std Tunnel Size – 1.8904″ / 48.016mm

Max Wall at Crown – 0.0596″ / 1.515mm

Max Overall Length – 0.669″ / 17.00mm