Manley Nissan (SR20DE/DET) 86.25mm +.25mm Oversized Bore 9.0:1 Dish Piston Set with Ring

This set includes four forged pistons, complete with wrist pins and rings, ready to be installed in your Nissan SR20DE or SR20DET engine. These pistons are specifically sized at 86.25mm, which is a +.25mm oversize bore, and feature a 9.0:1 compression dish. They are built using Manley's signature 2618 alloy forgings, a material known for its strength and performance under demanding conditions. This makes them a solid choice for engine builds where durability and power are key considerations.

Manley incorporates proven cam and barrel skirt profiles into these pistons. This design helps generate substantial power while also being gentle on your cylinder walls, reducing wear over time. The ring lands and grooves are machined to exacting standards, which is crucial for achieving a better ring seal. A good ring seal means more efficient combustion and ultimately, more power from your engine. The unique fixturing Manley uses allows them to machine the skirt and ring grooves in a single operation, ensuring the ring grooves are perfectly square to the piston skirt. This attention to detail contributes to overall engine health and performance.

Included with these pistons are premium chrome moly wrist pins, offering good durability. For those looking for even more robustness, Manley offers upgrades to 9310 and Turbo Tuff/DLC alloys on select part numbers. It's important to note that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.