CP Piston & Ring Set for Honda B-Series - Bore (84.0mm) - Size (STD) - Compression Ratio (12.7)

This is a complete set of four forged pistons and accompanying rings from CP Pistons, specifically made for Honda B-Series engines. You get everything needed to replace your stock pistons with a set designed for higher performance applications. These pistons feature an 84.0mm bore and are standard size, meaning they're intended for a fresh engine block or one that has been machined back to factory specifications. The 12.7:1 compression ratio is a notable increase over stock, which will help you get more power out of your engine, especially when paired with performance camshafts and tuning.

CP Pistons are well-known in the performance world for their robust construction. These are forged from high-strength aluminum alloy, a process that makes them significantly stronger and more durable than cast pistons. This strength is crucial for handling the increased cylinder pressures and temperatures that come with higher compression and performance tuning. The specific design of these pistons, including the dish volume, is what achieves that 12.7:1 compression ratio when used with a stock B-series cylinder head. This set is a solid option if you're rebuilding your B-series engine for boosted applications or a naturally aspirated build aiming for maximum output.

Please note that this piston set is not CARB approved and cannot be shipped to California. It's important to ensure your engine build plans align with local emissions regulations. For installation, you'll want to refer to the manufacturer's detailed instructions, as proper piston ring gap setting and cylinder wall preparation are critical for engine longevity.