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Replace the stock-style Mark IV pan with a fresh steel five-quart sump
Moroso 20448 is a stock-configuration wet-sump oil pan for Big-Block Chevrolet Mark IV engines. The steel pan carries a five-quart capacity and a Chevy Orange powder-coated finish for a service-replacement or performance-engine build using compatible surrounding components.
Key Features
- Stock-style Big-Block Chevrolet Mark IV configuration
- Five-quart oil capacity
- Wet-sump design
- Steel construction
- Chevy Orange powder-coated finish
- Application-specific pan rail and sump layout
- Compatible pickup, gasket, fasteners, dipstick, and chassis clearance must be verified separately
Fitment
No year-make-model fitment applies. Confirm every dimension, interface, clearance, load, and installation requirement shown below.
| Application Type | Requirements |
|---|---|
| Dimension Based | Engine- and chassis-configuration-specific oil pan for a Big-Block Chevrolet Mark IV. Confirm rear-main-seal style, pickup, dipstick location, gasket, crossmember, steering, starter, and exhaust clearance before assembly. |
Specifications
| Detail | Value |
|---|---|
| Brand | Moroso |
| Manufacturer Part Number | 20448 |
| Product Type | Oil Pans |
| Engine Family | Big-Block Chevrolet Mark IV |
| Oil System | Wet sump |
| Capacity | 5 quarts |
| Material | Steel |
| Finish | Chevy Orange powder coat |
| Configuration | Stock style |
| Quantity | One pan |
What's Included
- One steel engine oil pan
- Not included: Oil pump pickup, gasket, fasteners, dipstick, windage tray, oil pump, and engine oil
About Moroso
Moroso Performance Products develops racing and performance hardware in Connecticut, including oil-system, engine, electrical-cover, and vehicle-securement components supported by exact part-number documentation.
Related Parts
- Use only Moroso or vehicle components verified for this exact part number and configuration; no unverified internal link was added.
FAQ
What is the 20448?It is a engine oil pan made for providing a stock-style wet sump for a compatible Big-Block Chevrolet Mark IV.
What does this part fit?Engine- and chassis-configuration-specific oil pan for a Big-Block Chevrolet Mark IV. Confirm rear-main-seal style, pickup, dipstick location, gasket, crossmember, steering, starter, and exhaust clearance before assembly.
What is included?One steel engine oil pan
What is it made from?The pan is steel with a Chevy Orange powder-coated finish.
Does it replace every surrounding component?No. Review the excluded items and inspect every mating component before installation.
Is professional installation recommended?Yes when the part affects engine sealing, lubrication, electrical protection, fastener preload, or vehicle securement.
What warranty applies?Use Moroso's current warranty terms and retain proof of purchase.
What should be checked before use?Confirm the exact application or interface, installation security, clearances, and safe operation before service.
Installation Instructions
- Confirm the engine is a Big-Block Chevrolet Mark IV and verify the seal style, dipstick arrangement, pickup, gasket, and chassis clearance.
- Remove the old pan, clean the sealing rails, and inspect the oil pump, pickup, windage components, and fastener threads.
- Trial-fit the pan and measure pickup-to-pan-floor clearance before applying the specified gasket and sealant procedure.
- Install the pan and tighten fasteners in the proper sequence and torque range without distorting the flange.
- Fill with the correct oil quantity, prime the lubrication system where required, and verify clearance, oil pressure, and leak-free operation.
California Proposition 65 Warning: This product contains a chemical known to the State of California to cause cancer, birth defects, or other reproductive harm. www.P65Warnings.ca.gov
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