CP Piston & Ring Set for Acura B18C1 - Bore (81.5mm) - Size (+0.5mm) - Compression Ratio (12.5)

Starting with a bore size of 81.5mm and an oversize of +0.5mm, this CP Pistons set is built for the 1994-2001 Acura Integra B18C1 engine. These aren't your typical replacement pistons; they're forged from high-strength aluminum, a process that makes them significantly more durable and resistant to the extreme pressures and heat generated in a performance engine. This robust construction is essential for achieving a 12.5:1 compression ratio, which is a notable increase over stock and designed to extract more power from your engine, especially when paired with appropriate tuning and supporting modifications.

The set includes forged pistons and matching rings, all engineered to work together seamlessly. The 81.5mm bore means these pistons are intended for engines that have already been bored out to this specific oversize, typically during a performance rebuild. This level of precision is crucial for proper sealing, optimal combustion, and long-term engine health. The 12.5:1 compression ratio is a significant bump, meaning you'll want to ensure your fuel system and engine management are up to the task to take full advantage of the improved performance potential. This is a well-built component for enthusiasts looking to build a high-performance B18C1 engine.

When installing these pistons, remember they are an oversize part, meaning your engine block will need to be machined to the specified 81.5mm bore. It's also important to note that this piston set is not CARB approved and cannot be shipped to California. Always consult your engine builder or a trusted mechanic for specific installation procedures and recommended supporting modifications to ensure the longevity and performance of your engine build.