Holden 202 Ross Racing Turbo / Supercharged Pistons (-10cc Dish)

Spool Holden 202 Custom Ross Racing Turbo / Supercharged Pistons - Now available!

These are a Custom Piston made by Ross for Spool Imports.

Pistons are available in:

• Compression Height: 1.68"
• Bore Sizes: 3.665" (+0.040") and (+0.060")
• Dish Volume: -10cc
• Weight: 460grams
• Pin: 0.866"
• Pistons come with Rings, Gudgeon Pins and Pin Locks.

Ross Racing Pistons:

All ROSS Racing Pistons (since 1985) have been forged from 2618 billet bar stock and have been heat treated and aged to a T61 condition (2618-T61). 2618-T61 is the material that is used when fatigue resistance and durability are of prime importance by all premium racing piston manufacturers.

This material has less than 1% silicon particulate content. High silicon content pistons (forged from 4032 or MS75) will not stand up to the most extreme stress placed on many racing pistons. If a crack starts to form in a high silicon piston it will continue until the piston experiences a catastrophic failure. Simply stated, adding sand to the aluminum only makes it more brittle. In the rare instance of a 2618-T61 piston cracking, the crack will continue to an area where the stress is not as great and will then stop. Another advantage of 2618-T61 over the high silicon pistons is the ability to keep its shape under extreme pressure and high RPM's. "Skirt Shrinking" is not a problem with ROSS Racing Pistons.