Ext Oil Pump 2-Stage Tri-Lobe LHS FP Drive

The Ext Oil Pump 2-Stage Tri-Lobe LHS FP Drive by MOROSO is a high-performance external oil pump engineered for serious engine builders and performance enthusiasts who demand superior lubrication under extreme conditions. This left-hand suction (LHS) unit is purpose-built for applications requiring independent oil system control, making it essential for drag racing, street performance builds, and heavily modified engines where factory oiling can't keep pace with peak horsepower demands. Whether you're running a supercharger, turbo, or naturally aspirated monster engine, this tri-lobe design delivers consistent pressure and volume when stock systems fall short.

The 2-stage tri-lobe rotor design is the engineering heart of this pump, offering two distinct displacement stages that optimize oil flow across your engine's entire RPM range. This architecture ensures maximum flow at low RPM for quick warm-up and bearing protection, then seamlessly transitions to higher displacement at elevated RPM when volumetric demand peaks. The FP drive configuration (front-mounted, gear-driven) provides direct, positive displacement without slip, maintaining absolute control over oil volume—critical when you're running tight bearing clearances or high-lift cams that demand aggressive lubrication. At 7.8 lbs and compact dimensions of 10.8 x 10.8 x 14.8 inches, this unit fits tight engine bays without sacrificing performance or durability.

This MOROSO pump is ideal for racers, engine rebuilders, and hot rod shops tackling serious displacement increases, forced induction conversions, or competition builds where reliability trumps all else. The left-hand suction design suits specific crankshaft configurations common in big-block Chevy, BBC, and similar platforms where oil pan geometry demands non-standard pump orientation. Installation requires careful matching to your block's front cover, drive mechanism, and oil system plumbing—this is not a bolt-and-go upgrade, but rather a platform-specific component that rewards precise fitment with bulletproof pressure stability and zero cavitation even at 8,000+ RPM. Verify your engine's specific mounting boss, suction port location, and drive-gear compatibility before purchase.