Wiseco 6630M835 Professional Series Forged Piston 83.50mm Bore Nissan CA18DET

The Wiseco 6630M835 is a Professional Series forged replacement piston engineered for the Nissan CA18DET engine. Featuring an 83.50 mm (3.289 in.) bore and 29.76 mm compression height, this individual piston is designed to meet the demands of heavy to severe duty race builds. It is sold as a single unit, making it an ideal replacement piston to complete or refresh a set.

Wiseco's Professional Series represents a no-compromise approach to piston design. Forged from 2618 high-strength aluminum alloy and fully machined in the USA, these pistons deliver superior tensile strength and durability over cast alternatives. Every piston features fully machined crown geometry, precision ring grooves, and Wiseco's proprietary ArmorGlide® skirt coating for seizure resistance, friction reduction, and quieter operation.

Key Features:

• Bore: 83.50 mm (3.289 in.) — +0.50 mm oversize
• Compression Height: 29.76 mm (1.171 in.)
• Pin Diameter: 20 mm (0.787 in.) — Pin part #S641 included
• Compression Ratio: 8.5:1
• Material: 2618 high-strength forged aluminum alloy
• Skirt Coating: ArmorGlide® — friction reduction, seizure resistance, quieter operation
• Ring Set Included: 8350XX plasma moly pre-gapped ring package
• Engineered, forged, and machined in the USA

Important Installation Note: Oil squirters must be removed or modified for proper fitment with this piston. Recommended ring set: 8350XX.

Wiseco Professional Series pistons are the choice for serious engine builders who demand race-proven performance and uncompromising quality. The 6630M835 is purpose-built for the CA18DET platform, ensuring a precise fit and maximum power potential in high-performance and race applications.