Arias A3730400 Toyota 4AGE 20V 81.5mm Bore 11.3:1 CR

Arias Pistons 81mm Bore 11.3 CR

Arias Pistons has been the leader in compact piston technology since our beginning. While piston suppliers at the time focused on larger-bore domestic V-8's, Arias had the foresight to cater to smaller-bore, higher-revving, hotter-running imports and domestics.

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 feature lightweight, high strength construction
• Turbo / nitrous pistons feature durable, heavy-duty designs

Specifications:

• Stock Bore: 81mm (Black Top) / 81.5mm (Silver Top)
• Stroke: 3.031
• .787" / 20.0MM PIN
• Gasket: .028
• Dome Top: 3.209 / 81.50
• Comp Height: 1.209
• Dome CC: 0.2
• Comp Ratio: 11.3 (Silver Top) / 10.5 (Black Top)
• Gram Wight: 293
• Required Ring Set: 1012283209