SKU: SYS234-900773-2
MPN: 234-900773-2
The SYSTEM ONE BBC Cast Oil Pump Pre-Set at 80 lbs Warm is a high-volume wet sump oil pump engineered for Big Block Chevy engines requiring superior lubrication under sustained load. This internally mounted pump delivers consistent pressure management, critical for engines subjected to extended highway cruising, track duty, or heavy towing applications where oil starvation and bearing wear represent genuine operational risks.
Pre-set at 80 lbs warm pressure, this pump provides immediate operational readiness without field calibration. The adjustable pressure design permits fine-tuning within the operational envelope to match specific engine build parameters—critical for forced-induction applications, high-RPM competition engines, or vehicles running extended idle periods where pressure stability matters. Cast construction ensures durability and cost-effectiveness compared to forged alternatives, while maintaining the flow rates demanded by big-block displacement and multi-stage cooling systems.
This pump suits Big Block Chevy engine builders prioritizing reliable oil delivery in street applications, marine inboards, or vintage performance restorations. Technicians and enthusiasts value the combination of proven design, factory-equivalent sizing, and pressure adjustment capability—eliminating guesswork during installation and startup diagnostics. The 4.8 lb weight reflects the dense cast material without adding significant mechanical complexity.
High-volume wet sump oil pumps remain the industry standard for naturally aspirated and supercharged big-block builds because they maintain consistent gallery pressure across the RPM range—a characteristic that directly correlates to bearing longevity and ring seal integrity. The SYSTEM ONE pump's adjustable relief valve accommodates variations in system plumbing, filter restrictions, and cooler design without sacrificing flow capacity or thermal management.
Stock directly from TacticalSurplusUSA for next-day delivery on qualifying orders. Verify BBC mounting surface compatibility and gallery thread sizing against your specific engine block before installation.
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