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This is Engineered Diesel's Improved Stock CP3.
We started with a BRAND NEW OEM CP3, then we redesigned the internal components for increased flow & reliability throughout the RPM range. The greatest increase in flow will be seen at higher RPMs. When compared to a stock CP3, our Improved Stock CP3 is much more durable!
- Plungers are DLC coated
- Polygon is DLC coated
- Cam is Rockwell 65 hardness
- Lifters are Rockwell 65 hardness
- Micro Polished lifters
- Highflow suction valves
- Modified housing for increased case pressure resulting in better plunger fill rate