CPP Diesel builds and supplies OEM-quality and performance long blocks for 1989–1998 5.9L 12-valve Cummins applications. Whether you run a first-gen VE-pump setup or the legendary P7100 “P-pump” (1994–1998), our long blocks are machined, balanced, and assembled for clean idle, strong mid-range, and long life.
Long blocks include the short block plus cylinder head and valvetrain—ideal when your top end needs a fresh start along with the bottom end.
Built for first-gen Dodge Ram with the mechanical VE rotary pump. Expect factory-smooth drivability, strong towing manners, and dependable cold starts. Performance options add durability upgrades for mild fueling/turbo changes.
The benchmark 12-valve platform for power and reliability. Choose OEM-style for stock fitment or step into CPP Performance long blocks with upgraded internals to support higher fueling and towing loads.
OEM-Style Reman/Build: Targets factory specifications and daily-driver reliability with OE-equivalent components and clearances.
CPP Performance: Adds upgraded pistons/rods/hardware and tighter QC to handle future fueling, turbo, and towing goals while maintaining street manners.
Accessories (fuel system, turbo, manifolds, sensors) are typically not included—see each product’s contents.
What’s the difference between VE and P7100 long blocks?
Are these OEM-style or performance builds?
What comes on a long block vs a complete engine?
How does shipping and core return work?
Will a performance long block affect drivability?