SBC Dry Sump Oil Pan w/ Dart Block #12AN ORB

The SBC Dry Sump Oil Pan with Dart Block #12AN ORB from CHAMP PANS is purpose-built for serious small-block Chevrolet engine builds where traditional wet-sump systems cannot deliver the cooling, evacuation, and packaging efficiency required. This pan is engineered for high-performance applications—drag racing, road racing, and heavily modified street engines—where oil starvation during hard acceleration or cornering must be eliminated entirely. Dry sump systems separate oil storage from the engine's crankcase, allowing greater crankcase ventilation, lower oil temperatures, and consistent bearing pressure regardless of vehicle attitude or g-loading.

This pan features a #12AN ORB (O-ring boss) port configuration, the industry standard for high-flow dry sump pump connections and remote filter or cooler lines on competition-grade small-block platforms. The Dart Block mounting interface ensures fitment with Dart Engine Block castings, a popular choice among engine builders for improved cooling passages, stronger deck surfaces, and superior oiling geometry compared to stock cast-iron blocks. The aluminum construction minimizes weight while maintaining structural rigidity under vacuum and pressure cycling inherent to dry sump operation. Precise internal baffling and scavenging ports optimize oil evacuation efficiency, reducing parasitic losses and enhancing engine breathing at higher RPM ranges.

Buyers pursuing dry sump conversion on SBC-based platforms—whether for a dedicated race car, twin-turbo street engine, or high-RPM road-race combination—will appreciate CHAMP PANS' reputation for precision manufacturing and fitment accuracy. Installation pairs with a standalone dry sump pump system (sold separately) and typically requires custom oiling lines, a remote reservoir, and integration with engine management for optimal scavenging. The #12AN ORB ports provide straightforward hose compatibility with industry-standard fittings, reducing custom fabrication. This pan is not compatible with bolt-on street applications or factory wet-sump pumps; it is exclusively for engineered dry sump systems on race-prepped or heavily modified small-block Chevrolet motors.