Supertech Honda B20 Block B16 Head 86mm Bore +1.4cc Dome 11.5:1 CR Pistons - Set of 4 (Excl Rings)

These Supertech pistons are forged from 4032 aluminum, a material known for its strength and ability to handle higher temperatures and pressures compared to cast aluminum. This specific set is designed for Honda B20 blocks when paired with B16 cylinder heads, featuring an 86mm bore. The pistons have a +1.4cc dome volume, which, when combined with the B16 head, results in a calculated compression ratio of 11.5:1. This higher compression ratio can lead to improved power output and throttle response, especially when paired with appropriate tuning.

The 4032 aluminum construction offers good thermal expansion characteristics, which helps maintain proper piston-to-wall clearance throughout the engine's operating temperature range. This is crucial for reducing noise and wear. Each piston in this set is precisely machined to ensure consistent performance and fitment. It's important to note that this set includes four pistons but does not include piston rings, which will need to be purchased separately. Proper installation and balancing are critical for these high-performance components.

Because these pistons are not CARB approved, they cannot be shipped to California. Ensure you have the correct supporting modifications and tuning to take full advantage of the increased compression ratio. This set is intended for builders looking to significantly upgrade their Honda engine's performance and durability.