Rear Main Cap - BBM 383-440 2-Bolt

The Rear Main Cap - BBM 383-440 2-Bolt from Pro-Gram Engineering is an essential component for big-block Mopar engine builders and restorers. This precision-machined cap is designed to provide a reliable crankshaft sealing solution, crucial for preventing oil leaks that can affect engine performance and longevity. Whether you're working on a 383 or 440 cubic-inch engine, this part is tailored for street, strip, or show applications.

The Rear Main Cap features a robust two-bolt design that ensures consistent crankshaft alignment and seal integrity. Its compact profile integrates seamlessly with both factory and aftermarket block configurations. Pro-Gram Engineering's commitment to high manufacturing standards guarantees precise machining tolerances, which are vital for proper bearing fit and seal seating, promoting leak-free operation.

This component is ideal for anyone rebuilding or modifying a 383 or 440 Magnum engine in Dodge, Plymouth, or Chrysler platforms. Proper installation requires adherence to torque specifications and alignment during block assembly, ensuring optimal performance and reliability in your engine build.