Supertech Mitsubishi 4G63 85.5mm Bore -15cc Dish 8.3:1 CR/8.8:1 CR Pistons - Set of 4 (Excl Rings)

This set includes four Supertech forged pistons, each with an 85.5mm bore and a -15cc dish. These pistons are designed for the Mitsubishi 4G63 engine and offer two potential compression ratios: 8.3:1 or 8.8:1, depending on your cylinder head setup. Please note that piston rings are not included with this set and must be purchased separately.

Forged from high-strength aluminum alloy, these pistons are built to withstand the increased pressures and temperatures common in performance applications. The -15cc dish volume is a key feature that helps achieve the specified compression ratios when paired with appropriate cylinder heads. This allows tuners to dial in their engine's compression for optimal performance, whether for street use or more demanding track applications. The 85.5mm bore size is a common upgrade for those looking to increase displacement on their 4G63 engine.

When rebuilding or modifying your 4G63 engine, selecting the right pistons is crucial for reliability and performance. These Supertech pistons are a solid option for builders aiming for a specific compression target. Remember to consult your engine builder or a trusted performance shop for guidance on pairing these pistons with the correct cylinder heads and other engine components to achieve your desired outcome. Also, be aware that these pistons are not CARB approved and cannot be shipped to California.