Supertech Mitsubishi 4G63 85mm Bore -15cc Dish 8.3:1/8.8:1 CR Pistons-Set of 4 (1000HP) (Excl Rings)

Supertech is known for making well-built engine components, and this set of four forged pistons for the Mitsubishi 4G63 engine is a prime example. These pistons are designed for builds aiming for high horsepower, with a stated capability of handling up to 1000HP. The 85mm bore size is a common upgrade for enthusiasts looking to increase displacement and power output from their 4G63 engine.

These pistons feature a -15cc dish, which helps achieve a compression ratio of either 8.3:1 or 8.8:1, depending on the cylinder head used. This lower compression ratio is ideal for forced induction applications, allowing for more boost pressure without detonation. The forged construction means these pistons are significantly stronger and more durable than cast pistons, making them suitable for the stresses of a high-performance engine build. They are designed as a direct replacement for the stock bore size, simplifying installation for those rebuilding or modifying their 4G63.

It's important to note that these pistons do not include piston rings, so you will need to source those separately. Also, these pistons are not CARB approved and cannot be shipped to California. If you're building a high-horsepower Mitsubishi 4G63, this set of forged pistons offers a solid foundation for your engine.