Moroso Chevrolet Big Block Mark IV (w/Double Power Kick Outs) Wet Sump 6-7qt 8in Aluminum Oil Pan

SKU: 20485

Moroso 21600 Aluminum Oil Pan for Chevrolet Big Block Mark IV 

Elevate your Chevrolet Big Block’s performance with the Moroso 21600 Aluminum Oil Pan, the undisputed leader in drag racing oil pans for Competition Eliminator, Super Gas, Super Comp, and Bracket cars. Engineered for racers by racers, this fully fabricated, lightweight aluminum oil pan is the top choice for maximizing power and oil control in high-performance applications. Designed specifically for Mark IV style Big Block Chevy engines (excluding Gen V and VI), the Moroso 21600 outperforms all competitors with its race-proven features, superior craftsmanship, and unmatched durability. Whether you’re chasing records or dominating the strip, this oil pan is your key to unlocking peak engine performance.

Why the Moroso is the Best

• Unrivaled Performance: The double power kick-out design and internal oil pump optimize oil control, keeping the crankshaft free of excess oil to ensure maximum horsepower and engine efficiency. This pan is built to handle the rigors of drag racing, delivering consistent performance under extreme conditions.
• Race-Proven Engineering: Fully fabricated from high-quality aluminum, the Moroso 21600 is hand-welded in Guilford, Connecticut, ensuring precision and durability. Its 7-quart capacity and 8-inch depth provide ample oil volume for high-RPM applications, while the wet sump design enhances oil flow for superior lubrication.
• Maximum Crankshaft Clearance: Clears up to a 4.75-inch stroke with most aluminum rods, making it ideal for stroker engines and high-performance builds. Compatible with 168-tooth flywheel combinations for seamless integration.
• Lightweight and Durable: Constructed from premium aluminum, this pan reduces weight without sacrificing strength, giving you a competitive edge on the track.
• Trusted by Professionals: Moroso, a family-owned company since 1968, is the go-to brand for top-tier NASCAR, NHRA, and IHRA race teams. The 21600 is a testament to their legacy of innovation and quality, designed by founder Dick Moroso, a legendary drag racer.

Details

• Part Number: 21600
• Material: Lightweight, fully fabricated aluminum
• Finish: Natural aluminum
• Capacity: 7 quarts
• Depth: 8 inches
• Sump Style: Wet sump, rear sump
• Oil Pump: Internal oil pump included
• Crankshaft Clearance: Accepts up to 4.75-inch stroke with most aluminum rods
• Flywheel Compatibility: Designed for 168-tooth flywheel combinations
• Additional Features: Double power kick-outs for enhanced oil control, race-proven design for drag racing applications
• Warranty: Limited warranty covering defects in material or workmanship.

Includes:

• Moroso 21600 Aluminum Oil Pan
• Magnetic drain plug for easy maintenance
• Installation hardware (studs, nuts, and gaskets sold separately; Moroso offers compatible kits for easy installation)

Fitment

The Moroso 21600 is designed for Chevrolet Big Block Mark IV style engines (excluding Gen V and VI) and fits the following vehicles with no cross-member under the engine:

• 1966-1969 Chevrolet 427 Big Block (Mark IV Style, Competition Eliminator, Super Comp/Gas, Bracket Cars)
• 1970-2000 Chevrolet 454 Big Block (Mark IV Style, Competition Eliminator, Super Comp/Gas, Bracket Cars)
• 1985-2010 Chevrolet 502 Big Block (Base V8 8.2 GAS CARB, Deluxe V8 8.2 GAS CARB, RAM JET 502 V8 8.2 GAS FI, Competition Eliminator, Super Comp/Gas, Bracket Cars)
• 1970-2000 Chevrolet 565 Big Block (Mark IV Style, Competition Eliminator, Super Comp/Gas, Bracket Cars)

Note: This oil pan is designed for racing applications with no cross-member under the engine. Verify chassis compatibility before purchase.

Why Moroso?

Unlike generic or economy oil pans, the Moroso 21600 is purpose-built for drag racing, offering unmatched oil control and power output. Its lightweight aluminum construction reduces weight compared to steel alternatives, while the double kick-out design ensures superior oil management under high G-forces. Competitors’ pans often lack the precision engineering and race-specific features that Moroso delivers, making the 21600 the clear choice for serious racers.