HKS PISTON FULL KIT SR20 2.2L S1 86.5

This HKS Piston Full Kit is designed to take your SR20 engine out to a 2.2-liter displacement with an 86.5mm bore size. When you open this kit, you'll find everything needed to rebuild the top end of your engine for this larger displacement: the pistons themselves, along with their corresponding rings, wrist pins, and pin locks. This is a comprehensive package aimed at serious engine builders looking to significantly increase their engine's capacity and potential power output.

HKS has a long-standing reputation for producing well-built performance engine components, and this stroker kit is no exception. The pistons are forged from high-strength aluminum alloy, a common choice for performance applications because it offers a good balance of light weight and durability under high stress. The 86.5mm bore size, combined with the stroker crank (sold separately), creates the 2.2-liter displacement. This larger displacement generally means more air and fuel can be burned per cycle, leading to increased torque and horsepower potential. The included rings are designed to seal effectively against the cylinder walls, ensuring good compression and preventing blow-by, while the wrist pins and locks are crucial for securely connecting the pistons to the connecting rods.

Building an engine to this specification is a significant undertaking, and this kit provides the core components for the piston assembly. Remember that this kit is not CARB approved and cannot be shipped to California. You will need to source other necessary components for your engine build, such as a crankshaft, connecting rods, bearings, and gaskets, to complete the project. Always refer to the manufacturer's detailed installation instructions for proper assembly and torque specifications.