Supertech Subaru H6 EZ30R 3.0L 89.50mm (+0.3) 30.30mm CH - 15cc Dish Piston - Set of 6 (Excl Rings)

Supertech is known for making well-built engine components, and this set of forged pistons for the Subaru H6 EZ30R 3.0L engine is no exception. If you're rebuilding the top end of your Subaru H6, these pistons are designed to handle the demands of a performance build. They come in a 89.50mm bore size, which is 0.30mm over the stock size, and feature a 15cc dish to help achieve your desired compression ratio.

These pistons are forged from high-strength aluminum, a common material for performance pistons because it's lightweight yet durable. The 30.30mm compression height is a critical measurement that ensures proper piston-to-valve clearance and deck height when paired with the correct connecting rods and crankshaft. This set includes six pistons, but remember that the rings are sold separately, so you'll need to source those to complete the assembly. This is a solid option for anyone looking to refresh or upgrade their Subaru EZ30R engine internals.

When rebuilding an engine, it's crucial to ensure all components are clean and properly lubricated before installation. Always refer to the manufacturer's installation instructions for specific details on assembly and break-in procedures. These pistons are not CARB approved and cannot be shipped to California.