Product detailed specification

Bore size

86.50mm

Stroke

71.70mm

Wiseco compression ratio (CR)

8.4:1

OEM compression ratio (CR)

9.0:1

Dome volume (CC)

14cm3

Compression height (CH)

31.50mm

Pin diameter

21mm

Features

Accepts Turbo and Nitrous

Fits for

Nissan Skyline

2.5 24V (RB25DET)

Armor Plated wiseco pistons have almost a bronze colored tint to the top of the piston and the wrist pin bore. Wiseco's Armor Plating is an abrasion resistant plating that raises the hardness of the aluminum, increases the durability of the ring grooves, prevents micro-welding of the piston rings, reduces carbon buildup and combats corrosion caused by detonation. Wiseco's most popular pistons now include Armor Plating.