Carrillo M5037 Sportster 883 to 1200cc Piston Conversion Kit

The Carrillo M5037 is a high-performance piston kit designed to convert Harley-Davidson Sportster 883cc engines to 1200cc displacement. This premium conversion kit is engineered for riders seeking significant power gains and increased torque from their Evolution Sportster motor.

Key Features:

• Forged from high-strength 2618 aluminum alloy for maximum durability
• 3.505-inch bore diameter with 3.812-inch stroke capability
• 10:1 compression ratio optimized for street performance
• Fully CNC machined for precision fitment
• Balanced to +/- 1 gram for smooth operation
• Double forced pin oilers for enhanced lubrication
• Complete kit includes two pistons, ring sets, wrist pins, and clips

Carrillo's proprietary forging process and precision manufacturing ensure this conversion kit delivers exceptional reliability and performance. The kit is designed to work with stock cylinder heads and requires proper cylinder boring to accommodate the larger displacement. Installation should be performed by experienced technicians following all clearance specifications and assembly procedures included with the kit.