Carrillo BF9872-010 Bullet Series Forged Piston Over - 0.010

The Carrillo BF9872-010 is a Bullet Series forged performance piston ground to +0.010" over standard bore size. Engineered on the same manufacturing equipment as CP-Carrillo's flagship race pistons, the Bullet Series delivers professional-grade quality at an accessible price point for high-performance street and competition engine builds.

Key Features:

• 2618-T61 forged aluminum alloy construction for maximum strength and durability under high-stress conditions
• Application-specific forging designed and optimized for the intended engine platform
• Dual forced pin oilers for improved wrist pin lubrication
• Contact reduction grooves to minimize friction and improve ring seal
• Accumulator groove to reduce blow-by and maintain compression
• Forged side relief for reduced skirt contact and lower friction
• FEA-designed forging for optimized strength-to-weight ratio
• 1 gram piston balance for precision rotating assembly balance
• Includes 1.2mm/1.5mm/3.0mm ring package — 1.2mm carbon steel nitrided top ring offers reduced friction vs. larger 1.5mm and 1/16" rings
• Includes Chromoly wrist pins with wire locks
• Manufactured under ISO 9000 certified quality control processes
• +0.010" over standard bore size for use with bored or lightly worn cylinder bores

The Bullet Series is produced in high-volume manufacturing runs using dedicated Bullet forgings, allowing CP-Carrillo to reduce machining time and pass the savings on to the customer — all while maintaining the same tight tolerances and rigorous quality standards the brand is known for in professional motorsports.