Holley Cast Aluminum Mid-Sump Gen III Hemi Swap Oil Pan

1966–1974 Dodge Charger / 1970–1974 Dodge Challenger Gen III Hemi

302-64

Overview:

The Holley Cast Aluminum Mid-Sump Gen III Hemi Swap Oil Pan is engineered specifically for Mopar enthusiasts performing engine swaps with the popular Gen III Hemi engines. Designed to fit classic muscle cars like the Dodge Charger (1966–1974) and Dodge Challenger (1970–1974), this oil pan addresses the common issue of factory pans hanging too low or not fitting properly during swaps. Crafted from durable cast aluminum, it offers a reliable, leak-free solution that enhances oil control and engine performance.

This oil pan is ideal for those installing 6.2-liter supercharged Hellcat Gen III Hemi engines, featuring a unique bolt pattern and flange shape to ensure a precise fit. Whether you’re building a street machine or a high-performance muscle car, this complete oil pan kit simplifies installation and improves engine reliability.

Key Features:

Holley’s Gen III Hemi Swap Oil Pan combines innovative design with practical features to meet the demands of muscle car restorations and performance builds:

• Specifically designed to fit 1966–1974 Dodge Charger and 1970–1974 Dodge Challenger with Gen III Hemi engines
• Cast aluminum mid-sump construction for strength, durability, and lightweight performance
• Unique O-ring seal to block and captured windage tray (Patent Pending) for a leak-free installation
• Integrated steel windage tray and baffling to control oil movement and support up to 4.060” stroke crankshafts
• Complete kit includes oil pan, pickup assembly, O-ring seal, windage tray, baffling, and mounting bolts—no additional parts needed
• Oil capacity of 6 quarts, increasing to 6.5 quarts with filter installed
• Compatible with most factory and aftermarket dipsticks (PN 302-74 recommended)
• Cast bosses on front corners can be tapped for oil returns if required
• Available in natural as-cast finish or black powder coat for aesthetic preference

Construction & Design:

Constructed from high-quality cast aluminum, this oil pan offers superior strength and heat dissipation compared to stamped steel alternatives. The mid-sump design optimizes oil pickup location, improving oil control during hard acceleration, cornering, and braking. The integrated steel windage tray reduces oil aeration and windage losses, enhancing overall engine efficiency and durability.

The patented O-ring sealing system ensures a reliable, leak-free connection to the engine block, eliminating the need for traditional gaskets that can degrade over time. Additionally, the pan’s cast bosses provide flexibility for custom oil return setups, making it adaptable to various performance configurations.

Installation & Fitment:

This oil pan is engineered for direct fitment on Mopar A-Body, B-Body, C-Body, and E-Body vehicles equipped with Gen III Hemi engines, specifically the Dodge Charger (1966–1974) and Dodge Challenger (1970–1974). The unique bolt pattern and flange shape ensure a precise, hassle-free installation without the need for extensive modifications.

The complete kit includes all necessary components for installation, streamlining the swap process and reducing downtime. It works seamlessly with most factory and aftermarket dipsticks, further simplifying integration into your build.

What's Included:

• Cast aluminum mid-sump oil pan
• Pickup assembly
• O-ring seal
• Steel windage tray
• Baffling system
• Mounting bolts

Ideal For:

This oil pan is perfect for muscle car enthusiasts and professional builders performing Gen III Hemi engine swaps into classic Mopar vehicles. It suits those seeking a durable, leak-free oiling solution that maintains proper oil control under demanding driving conditions. Whether restoring a Dodge Charger or Challenger or building a high-performance street or strip car, this oil pan provides the fitment and reliability needed for a successful swap.

Holley is a cornerstone name in performance, spanning everything from classic carburetion to modern EFI, fuel systems, and race-ready supporting components. It’s also home to a roster of iconic sub-brands across ignition, exhaust, and drivetrain—making Holley a one-stop ecosystem for builders chasing better drivability, more power, and proven track heritage.