Core based oil pans are based off the same oil pan that came from the factory and are made of a drawn steel stamping. Moroso has taken the time and engineering to produce the best cores to fit the most applications available. In many cases, OEM cores that came in many cars and trucks are often a “typical” core that fit a variety of vehicle and engine combinations. But some manufactures had “special” core combinations that are rare and have certain irregularities that are not common. It is the responsibility of the end user to be aware of these applications and understand that all aspects of the oil pan may not be OEM compatible on the engine or in the vehicle. Moroso Performance core based oil pans are designed for both OEM and aftermarket blocks and engine combinations. This fact makes the addition of stroker notches, larger sumps, and power kick-outs a necessary design aspect. Certain oil pans will have OEM located bolt holes omitted to accommodate stroker notches. This has been intentionally designed this way, and with proper attention to sealing the area, will work in any application. These features will make the assembly of the oil pan more complex than OEM replacements. Core based oil pans are also subject to a certain amount of warping from the welding of fabricated components to a steel core. Core based pans often have tighter clearances to splayed main caps, rotating assemblies, and billet aluminum wet sump oil pumps. Mock-up fitments are more critical in these situations. Once a core based oil pan is fastened to the engine in its final assembly, knowing the oil pump clearance, and rotating assembly clearance will ensure ideal performance and longevity for your Moroso Oil Pan.

• Wet Sump
• Louvered tray
• 168/153-tooth flywheel combos
• Steel
• 7 qt. Capacity
• 7.75 Deep
• Chevy Big Block Mark IV style (NOT Gen V/VI)
• Core based
• Stock rail bolt pattern
• Up to a 4.50 stroke (steel rods) & a 4.25 stroke (aluminum rods)

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Information:

Wet Sump; Steel; Clear Zinc; 7 Quart Capacity; 7-3/4 Deep; Full Sump; Designed for Chevy Big Block Mark IV style (except Gen V and Gen VI); Core based oil pan; Utilizes stock pan rail bolt pattern; Box design sump for high capacity applications; Accepts up to a 4.50 stroke with steel rods and a 4.25 stroke with aluminum rods; Solid louvered tray for increased oil control; For use with 168 and 153-tooth flywheel combinations; PN: 24446 is Recommended (Fits: Moroso BBC Race Pump PN: 22149, 22150, 22159, 22160, 22162 or M77/M77HV style pump); Available Oil Pan Options: PN: 38361 BBC Race Pans Oil Pan Fastener Kit and PN: 93153 Steel-Reinforced BBC Mark 4 Oil Pan Gasket (notched for stroker cranks).