Manley 97-00 Honda CRV (B20B4 w/ B16A1-A20A3) 84.5mm +.5mm Oversize Bore 9.0:1 Dish Piston Set with

If you're rebuilding the engine in your 1992-2001 Honda Prelude, especially if you're aiming for more power or need to refresh a worn-out bottom end, a set of forged pistons like these from Manley is a solid choice. These pistons are 84.5mm, which is a 0.5mm oversize bore, designed to give you a fresh cylinder wall surface and potentially a slight increase in displacement. The 9.0:1 dish volume is a common compression ratio that works well for naturally aspirated builds or with moderate boost, offering a good balance between power and reliability.

Manley uses domestic 2618 alloy forgings for these pistons, which are known for their strength and ability to handle higher stresses compared to cast pistons. They also feature proven cam and barrel skirt profiles, which help the piston move smoothly in the cylinder bore while minimizing wear. The wrist pins included are made from premium chrome moly steel, adding to the overall durability of the set. Manley pays close attention to the details, ensuring the ring lands and grooves are machined to strict standards for a better seal and more power. They even use unique fixturing that allows them to machine the skirt and ring grooves in one operation, which helps ensure the piston is square and true.

This set includes pistons, wrist pins, and locks. Remember that when installing oversize pistons, you'll need to ensure your engine block is bored and honed to the correct size by a professional machine shop. This will give you the proper clearance for these 84.5mm pistons. Also, note that these pistons are not CARB approved and cannot be shipped to California.