Today, ARIAS maintains an unmatched advantage in the import and domestic compact market. Over three decades of research and development have led to the ARIAS Sport Compact shelf line.

Hi-tensile forged, not cast, billet material(4032 or 2618).

CNC machined working surfaces.

Optimized crowns for efficient combustion.

Diamond-turned ellipsoidal skirt profile.

All motor/Nitrous pistons feature lightweight, high strength construction.

Arias 4G63 pistons are designed to be out of the box Turbo/Nitrous pistons with a durable, heavy-duty design.

Compression Ration - 8.8:1

Pin Diameter - .827" (1st Gen)