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AMS Custom AMS spec Ross Pistons - 8.8:1 compression Std bore. Lighter & Stronger than std Ross EVO pistons (EVO VIII/IX)

AMS

AMS-A0100A-2A


Collections: All, AMS, Piston Kits, Recently Added

Type: Piston Kits


AMS/Ross EVO IV-IX Pistons are ideal for both street and serious competition. These pistons are loaded with extra features such as annular pin hole grooves with double forced oil holes, extra thick ring lands, 4340 hard-chromed wrist pins that are taper bored, and Ross Racing Rings. These pistons were specially designed by AMS to be the best piston money can buy.

Features

Specially designed quench area that improves power and reduces the chance of detonation
Annular pin hole grooves with double forced oil holes to prevent pinhole galling
Taper lands to prevent scuffing
Extra thick lands for superior ring groove support under extreme pressure
4340 taper bore, hard-chromed extra heavy duty pins for high strength and low weight

Kit Includes

Pistons, pins & rings

Specifications

Compression Ratio: 8.9:1

Options

Standard Bore
.020 Over Bore

Applications

Mitsubishi Evolution IV-IX
Fits all USDM, JDM and European Models


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