Supertech Honda B20 Block B16 Head 84mm Bore -10.3cc Dome 9.5:1 CR Pistons - Set of 4 (Excl Rings)

These Supertech pistons are forged from high-strength aluminum, a common choice for performance engine builds because it offers a good balance of strength and weight. Each piston is machined with an 84mm bore and features a -10.3cc dome dish, which is specifically designed to work with a B16 cylinder head. This combination helps achieve a 9.5:1 compression ratio, a notable bump over stock that’s ideal for naturally aspirated or mild forced induction setups where you want improved power without sacrificing too much drivability or requiring race fuel.

The forged construction means these pistons are built to withstand higher cylinder pressures and temperatures compared to cast pistons. This makes them a solid choice for rebuilding or upgrading your Honda B-series engine. The set includes four pistons, but remember that the piston rings are sold separately, so you'll need to factor that into your build plan. Proper installation, including correct ring gap and cylinder wall preparation, is crucial for their performance and longevity.

When planning your engine build, consider that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation guide for precise specifications and recommended clearances to ensure optimal performance and durability for your B20 block and B16 head combination.