1966 Oldsmobile Delta 88 Engine Blocks

Keep Your 1966 Oldsmobile Delta 88 in Top Shape with Quality Engine Blocks

Whether you’re repairing or upgrading your Engine Block, using high-quality parts is key to keeping your 1966 Oldsmobile Delta 88 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Engine Assembly Lube and Oil Pump Shafts. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Competitive Prices and Extensive Inventory

The average price for a 1966 Oldsmobile Delta 88 Engine Block at Advance Auto Parts is around $14.14, with a range that starts at $10.49 and goes up to $17.79. With 2 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Stock Replacement Type Oil Pump Intermediate Shaft and Engine Assembly Lubricant start at just $10.49 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Engine Block, don’t forget to check out other key components like Engine Gaskets and Seals and Engine Timing Parts. At Advance Auto Parts, we’re here to help you keep your 1966 Oldsmobile Delta 88 in peak condition, inside and out.

Essential 1966 Oldsmobile Delta 88 Engine Blocks

Sealed Power – Engine Assembly Lubricant (Part No.55-400)

Engine Assembly Lubricant

from

$10.49
Sealed Power® parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • Formulated for prelubrication cam lobes, lifters & engine bearings
  • Increases load carrying capacity
  • Holds fast to surfaces
  • Exacting tolerances
  • Meets or exceeds OEM specifications
  • 4.0 oz. Squeeze Container
See More

Melling – Stock Replacement Type Oil Pump Intermediate Shaft (Part No.IS-22F)

Stock Replacement Type Oil Pump Intermediate Shaft

from

$17.79
A new Melling oil pump shaft is recommended to complete every new oil pump install. Melling offers a complete line of high quality shafts for domestic and import pump applications. A new oil pump shaft is necessary due to possible metal fatigue, cracking

Product Features:
  • Manufactured from high quality materials for consistent durable wear
  • Precision engineered for optimum fit and function
  • Designed for long-life and worry-free performance
  • Meets or exceeds original equipment specifications
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ARP Auto Racing – For Use With All Chevy Small Blocks, 8740 Steel, 190000 Psi (Part No.134-7901)

For Use With All Chevy Small Blocks, 8740 Steel, 190000 Psi

from

$24.99
Many an engine has been destroyed as a result of oil pump driveshaft failure. To cure this all too common problem, ARP has designed an extra heavy duty shaft that will provide you with the necessary reliability. The shaft is made from heat treated, premium grade aerospace chrome moly steel. Moreover, the shaft diameter is a larger diameter than the OEM unit. These features combine to enable ARP shafts to handle the added torque requirements of increased capacity oil pumps or heavy viscosity lubricants.

Product Features:
  • Extra Heavy Duty Shaft That Will Provide The Necessary Reliability
  • Enable Shafts To Handle The Added Torque Requirements Of Increased Capacity Oil Pumps Or Heavy Viscosity Lubricants
  • Made From Premium Grade 8740 And Heat Treated To 190,000 Psi
  • Alignment Sleeve Is Roll Formed Onto The Shaft (Not Welded Or Pinned), Enabling The Sleeve To Float, Allowing For Slight Misalignment
  • Black Oxide
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Melling – Stock Replacement Type Oil Pump Intermediate Shaft (Part No.IS-54A)

Stock Replacement Type Oil Pump Intermediate Shaft

from

$14.29
A new Melling oil pump shaft is recommended to complete every new oil pump install. Melling offers a complete line of high quality shafts for domestic and import pump applications. A new oil pump shaft is necessary due to possible metal fatigue, cracking

Product Features:
  • Manufactured from high quality materials for consistent durable wear
  • Precision engineered for optimum fit and function
  • Designed for long-life and worry-free performance
  • Meets or exceeds original equipment specifications
See More

Melling – Stock Replacement Type Oil Pump Intermediate Shaft (Part No.IS-55E)

Stock Replacement Type Oil Pump Intermediate Shaft

from

$21.99
A new Melling oil pump shaft is recommended to complete every new oil pump install. Melling offers a complete line of high quality shafts for domestic and import pump applications. A new oil pump shaft is necessary due to possible metal fatigue, cracking

Product Features:
  • Manufactured from high quality materials for consistent durable wear
  • Precision engineered for optimum fit and function
  • Designed for long-life and worry-free performance
  • Meets or exceeds original equipment specifications
See More

Melling – Stock Replacement Type Oil Pump Intermediate Shaft (Part No.IS-55G)

Stock Replacement Type Oil Pump Intermediate Shaft

from

$17.79
A new Melling oil pump shaft is recommended to complete every new oil pump install. Melling offers a complete line of high quality shafts for domestic and import pump applications. A new oil pump shaft is necessary due to possible metal fatigue, cracking

Product Features:
  • Manufactured from high quality materials for consistent durable wear
  • Precision engineered for optimum fit and function
  • Designed for long-life and worry-free performance
  • Meets or exceeds original equipment specifications
See More

Most Popular Engine Assembly Lube for 1966 Oldsmobile Delta 88s

Enhance your 1966 Oldsmobile Delta 88 with this popular Engine Assembly Lube we have in stock, for $10.49.

Sealed Power – Engine Assembly Lubricant (Part No.55-400)

Engine Assembly Lubricant

from

$10.49
Sealed Power® parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • Formulated for prelubrication cam lobes, lifters & engine bearings
  • Increases load carrying capacity
  • Holds fast to surfaces
  • Exacting tolerances
  • Meets or exceeds OEM specifications
  • 4.0 oz. Squeeze Container
See More

Best-Selling 1966 Oldsmobile Delta 88 Oil Pump Shaft

Upgrade your Delta 88 with our best-selling Oil Pump Shaft.

Melling – Stock Replacement Type Oil Pump Intermediate Shaft (Part No.IS-22F)

Stock Replacement Type Oil Pump Intermediate Shaft

from

$17.79
A new Melling oil pump shaft is recommended to complete every new oil pump install. Melling offers a complete line of high quality shafts for domestic and import pump applications. A new oil pump shaft is necessary due to possible metal fatigue, cracking

Product Features:
  • Manufactured from high quality materials for consistent durable wear
  • Precision engineered for optimum fit and function
  • Designed for long-life and worry-free performance
  • Meets or exceeds original equipment specifications
See More

FAQs for 1966 Oldsmobile Delta 88 Engine Blocks

What are the best-selling Engine Blocks for 1966 Oldsmobile Delta 88s?

Out of 2 Engine Blocks that fit 1966 Oldsmobile Delta 88s, the following parts are the top sellers:

What’s the price range for 1966 Oldsmobile Delta 88 Engine Blocks?

The prices of Engine Blocks for the 1966 Oldsmobile Delta 88 range from $10.49 up to $17.79 for the most premium parts.

What is the average price of an Engine Block for a 1966 Oldsmobile Delta 88?

The average price for Engine Blocks for the 1966 Oldsmobile Delta 88 is $14.14. Keep in mind the variety of part types within our Engine Block category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Engine Blocks for other Oldsmobile Delta 88 model years?

Yes, we carry Engine Blocks for 25 model years of Oldsmobile Delta 88s between 1965 and 1991. The following model years are the most popular for Engine Block purchases: 1991, 1990, 1989, 1988, 1987, 1986, 1985, 1984, and 1983.

What are the cheapest Engine Blocks for my 1966 Oldsmobile Delta 88?

The cheapest 1966 Oldsmobile Delta 88 Engine Blocks we carry are:

Does Advance Auto Parts sell Engine Blocks for any other 1966 Oldsmobile models?

Yes. We stock Engine Blocks for 8 other popular 1966 Oldsmobile models. Some of the most popular are 1966 Cutlass Engine Blocks, 1966 98 Engine Blocks, 1966 Toronado Engine Blocks, 1966 F85 Engine Blocks, and 1966 Vista Cruiser Engine Blocks.

What types of Engine Blocks do you sell for my 1966 Oldsmobile Delta 88?

As of 11/2/25, these are some of the most in-demand types of Engine Blocks for a 1966 Oldsmobile Delta 88:

Can I get help with 1966 Oldsmobile Delta 88 Engine Block orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Oldsmobile Engine Blocks and more.

What is your return policy for Oldsmobile Delta 88 Engine Blocks?

Advance Auto Parts keeps returns simple. For new Oldsmobile Delta 88 Engine Blocks and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.