Part Number: K553M845

Description: Pro Tru Pistons; Sport Compact Series; Set of 4 Pistons; Recommended RingSet: 8450XX; Rings & Pins Included

Bore: 84.5mm

Comp Height: 30.5

Comp Ratio: 8.5-8.8:1

Dome Volume: -4

Gram Weight: 315

Rod: 133

Stroke: 85

Fitment: 94-05 Mazda Miata 16Valve; w/ 207mm Deck & Different Valve Angles

Notes: Not for sale in California not CARB Legal

Details:

World renowned for our work building race winning pistons, Wiseco utilizes experience from a diverse background of the most sophisticated sport compact engines.

Wiseco’s Sport Compact Pro Tru line creates the best value in forged pistons today. These American made pistons are forged and machined by skilled Ohio craftsmen with state-of-the-art forging presses and CNC machines. By using dedicated forgings specific to the final piston shape, Pro Tru pistons are stronger and lighter than industry standards.

Pro Tru sets include plasma moly 1/16, 1/16, 3/16 pre-gapped ring packages which provide excellent seal, friction reduction, and long life. Pro Tru pistons also come in a variety of volumes that allow the engine builder to choose the exact compression ratio required for their engine.