Wiseco Saab -18cc Dish 1.295x3.563 (90.5mm) Custom Pistons SPECIAL ORDER

If you're rebuilding the engine in your 1999-2009 Saab 9-5 and aiming for a specific compression ratio, these custom pistons from Wiseco are a solid choice. These pistons feature an -18cc dish, which is designed to work with certain cylinder head volumes and crankshaft stroke combinations to achieve your target compression. The 90.5mm bore size is a common upgrade for these engines, allowing for a slight increase in displacement over the stock bore.

Wiseco is well-known for its forged pistons, and these are no exception. Forged pistons are stronger and more durable than cast pistons, making them a better option for engines that see hard use or have been modified for increased performance. The -18cc dish is a specific design feature that helps control the combustion chamber volume, which is critical for tuning engine performance and efficiency. These are special order items, meaning they are manufactured to your specifications, so please allow for extended lead times.

When ordering, it's important to confirm the exact specifications of your cylinder head and crankshaft to ensure these pistons will achieve your desired compression ratio. These pistons are sold as a set, and you'll want to ensure you have all the necessary supporting components for your engine rebuild, such as rings, wrist pins, and bearings, which are typically sold separately. Please note that these pistons are not CARB approved and cannot be shipped to California.