Manley Nissan RB26DETT 86.25mm Bore 9.0 CR +17cc Dome Extreme Duty Piston Set w/ Rings

These Manley Extreme Duty pistons start with domestic 2618 alloy forgings, a material chosen for its exceptional strength and performance under demanding conditions. They're specifically made for the Nissan RB26DETT engine, with an 86.25mm bore size and a 9.0 compression ratio, featuring a +17cc dome that's designed to work with specific cylinder head combinations. If you're building a high-performance RB26, these pistons are a solid choice for serious power and durability.

Manley puts a lot of thought into how these pistons work inside the cylinder. They use proven cam and barrel skirt profiles, which help generate power efficiently while also being gentler on your cylinder walls during operation. The ring lands and grooves are machined to very strict standards, which is crucial for getting a good seal from your piston rings, leading to more consistent power output. Plus, their unique fixturing process allows them to machine the skirt and ring grooves in one go, ensuring they are perfectly square to each other for optimal performance.

This set includes premium chrome moly wrist pins, known for their durability. For those pushing the limits, Manley offers upgrades to even stronger 9310 or Turbo Tuff/DLC alloys on select part numbers, though this specific set comes standard with the chrome moly pins. These pistons are not CARB approved and cannot be shipped to California. They are a popular choice among professional engine builders and tuners who need reliable performance from their RB26DETT builds.