Arias A3420851 Mitsubishi 4G64 w/ 4G63 Head 86.5mm Bore 10:1 CR

ARIAS PISTONS has been the leader in compact piston technology since our beginnings. While piston suppliers at that time focused mostly on larger-bore domestic V-8’s, ARIAS had the foresight to cater to the smaller-bore, higher-revving, hotter-running imports & domestic compacts.

Features:

• 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.
• Turbo/Nitrous pistons feature durable, heavy-duty design.