MELLING Oil Pump Driveshaft Big Block Steel IS-63 383 426

( Brand: Melling ), ( Type: Oil Pump Shaft ), ( Manufacturer Part Number: PC780 ), ( Country Of Origin: United States )

Review MELLING Oil Pump Driveshaft Mopar 383 426 Big Block Steel fits PC780 400 440

Introducing the Melling PC780 IS-63 Oil Pump Driveshaft, a high-performance component designed specifically for Mopar 383, 400, 426, and 440 Big Block engines. This driveshaft is engineered to deliver exceptional durability and reliability, making it an ideal choice for enthusiasts seeking superior oiling system performance.

The Melling PC780 IS-63 Oil Pump Driveshaft is manufactured using top-tier steel, ensuring strength and longevity. Its unique, six-bolt design provides enhanced clamping force, ensuring a secure connection to the crankshaft and oil pump for optimal power transfer. The six-bolt design also aids in distributing the engine's torque more evenly, reducing the risk of drivetrain stress or failure.

This driveshaft features a precision-machined, integral oil pump gear, which ensures perfect alignment with the crankshaft and oil pump. The gear's high-quality steel construction guarantees superior strength and durability, reducing the likelihood of wear or failure under heavy engine loads.

The Melling PC780 IS-63 Oil Pump Driveshaft is also designed to accommodate various oil pumps, including the Melling M1000 oil pump series. This versatility makes it an excellent choice for engine builders and restorers working on a wide range of projects, as it allows them to select the most suitable oil pump for their specific application.

Installing the Melling PC780 IS-63 Oil Pump Driveshaft is a straightforward process, thanks to its easy-to-follow instructions and included hardware. The driveshaft is also compatible with most aftermarket oil pumps and crankshafts, further expanding its applicability.

In summary, the Melling PC780 IS-63 Oil Pump Driveshaft is an essential upgrade for Mopar 383, 400, 426, and 440 Big Block engines, delivering superior strength, durability, and versatility. Its precision-machined design, integral oil pump gear, and six-bolt clamping system make it an indispensable component for any high-performance build, ensuring a robust and efficient oiling system.

Melling PC780 IS-63 Oil Pump Driveshaft for Mopar 383, 400, 426, 440 Big Block Engines: A Comprehensive Analysis

The Melling PC780 IS-63 Oil Pump Driveshaft is a crucial component in the lubrication system of Mopar 383, 400, 426, and 440 big block engines. This part connects the oil pump to the crankshaft and ensures proper oil distribution throughout the engine.

a. High-Quality Material: The Melling PC780 IS-63 Oil Pump Driveshaft is made of steel, ensuring durability and strength.

b. Improved Performance: A worn or failing oil pump driveshaft can negatively impact engine performance. Replacing it with a new one like the Melling PC780 can help restore lost power and improve overall engine efficiency.

c. Better Lubrication: Proper oil distribution is essential for the longevity and health of the engine. This oil pump driveshaft ensures efficient oil flow, protecting the engine from wear and damage.

a. Cost: The Melling PC780 IS-63 Oil Pump Driveshaft may be more expensive than some aftermarket alternatives or used parts.

b. Installation Complexity: Installing the oil pump driveshaft can be a challenging process, especially for those without experience in engine rebuilds or repairs.

The Melling PC780 IS-63 Oil Pump Driveshaft is an essential upgrade for Mopar 383, 400, 426, and 440 big block engines. Its high-quality steel construction, improved engine performance, and better lubrication make it a worthwhile investment for those seeking to maintain or enhance their engine's longevity and power.

If you are an enthusiast or professional working on a Mopar big block engine, it is highly recommended to invest in a new Melling PC780 IS-63 Oil Pump Driveshaft. While it may come with a higher initial cost and installation complexity, the long-term benefits in terms of engine performance, reliability, and peace of mind outweigh the drawbacks. For those with limited budgets or DIY expertise, it may be worth considering used or aftermarket alternatives, but be cautious of potential compatibility issues and inferior quality.

Details:

Direct Replacement Fit designed as a direct replacement for compatible Mopar big block applications. Ensure reliable oil pump operation with this Melling IS-63 intermediate driveshaft, designed for Mopar big block engines. Type: Oil pump intermediate driveshaft.: Brand: Melling.

Country of Origin: USA. Remanufactured: No. Melling IS-63 Heavy-Duty Intermediate Oil Pump Drive Shaft Mopar Big Block. Includes Drive Gear Comes with an iron drive gear for proper engagement and reliable operation.

Part Number: IS-63. Recommended for use with both standard and high-volume oil pumps. Hardened Shaft Design Heat-treated for improved strength and resistance to wear. Installation Notes: Verify compatibility with your engine and oil pump setup.

Fits select Mopar Big Block engines, including Heavy-Duty Steel Construction. Built from hardened steel and engineered for durability, this driveshaft is ideal both stock high-volume oil pump applications. Compatible with High Volume Pumps: Yes. Drive Gear Included: Yes.

Sleeve Included: No. Key: Heavy-Duty Steel Construction Manufactured from high-strength steel for durability and long service life under demanding engine conditions. Product Line: Melling Heavy-Duty Intermediate Driveshafts. Compatible with High-Volume Oil Pumps designed to handle the increased load from high-volume oil pump systems.

Verify application before purchase. Material: Steel shaft, iron gear. Gear Material: Iron.

Specifications: Hardened Shaft: Yes.

part #: pc780 prices

• $44.00-$69.21

specifications pumppruner:

• for models: Pc780, 400, 440
• for makes: Mopar
• brand: Melling
• type: Oil Pump Shaft
• manufacturer part number: PC780
• country of origin: United States

payments pumppruner:

• credit card: Diners-club
• wallet: Paypal
• other

offer pumppruner:

• availability: In Stock
• options: Ship-to-home
• best offers: True
• sold: 0
• quantity: 1
• started: May 15, 2026

general pumppruner:

• condition: Used
• Car Truck Parts Accessories > Engines Engine Parts > Oil Pumps Parts

returns pumppruner:

• time: 30 Days
• policy: Returns Accepted
• paid by: Buyer

shipping pumppruner:

• transit: 4-8 Days
• cost: $0.00
• service: USPS Ground Advantage
• carrier: USPS
• type: Fixed
• class: Standard

seller pumppruner:

• city: San Tan Valley, Arizona
• rating: 99.6%
• # reviews: 2366

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