BBC Gen IV Stock Oil Pan

The MOROSO BBC Gen IV Stock Oil Pan (part number 20449) is a purpose-built rear sump oil pan engineered for big block Chevy engines running street or strip applications. This 5-quart steel pan features a durable black powder-coat finish and 7.75-inch depth, providing adequate oil capacity and ground clearance for modified engines without sacrificing structural integrity or adding unnecessary weight to the rotating assembly.

The two-piece seal design ensures a reliable, leak-free installation while allowing straightforward service and maintenance. A rear sump configuration keeps the oil supply away from the front of the engine—critical for vehicles with tight engine bays or those running aggressive suspension geometry where weight transfer during acceleration could otherwise expose the pan to ground contact. The 7.75-inch depth balances adequate reservoir volume with low-profile packaging, making it compatible with a wide range of big block Chevy platforms without requiring custom frame modifications or exotic suspension tuning.

This pan is ideal for street rodders, bracket racers, and enthusiasts rebuilding classic big block Chevy engines who need proven OEM-style capacity in a package that fits stock or near-stock chassis. The black powder-coat finish resists corrosion and maintains appearance through multiple seasons of use. Whether you're assembling a 454 for weekend cruising or a 427 for the drag strip, this MOROSO unit delivers the durability and fitment that experienced builders expect from a recognized engine component manufacturer.