1990 GMC P6000 Engine Blocks

Keep Your 1990 GMC P6000 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 1990 GMC P6000 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 Caps. 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.

Top-Rated Engine Blocks from Trusted Brands

Looking for a reliable Engine Block? We’ve got you covered with options from brands you know and trust like Carquest Premium. For example, Carquest Premium Engine Blocks start at just $6.99 with an average 4.4 star rating. With over 12 reviews and a solid 5 star average, you can shop with confidence knowing other GMC P6000 owners approve.

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 1990 GMC P6000 in peak condition, inside and out.

Essential 1990 GMC P6000 Engine Blocks

Carquest Premium – Engine Oil Filler Cap: Push Fit, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10072)

Engine Oil Filler Cap: Push Fit, Direct Fit, Provides Tight Seal, 1 Pack

from

$6.99
Manufactured from high quality components by an OE Supplier. Proper fit and sealing prevents oil loss. Designed to OEM specifications. High quality finish is designed to compliment the engine compartment appearance.

Product Features:
  • Provides proper seal to ensure leak prevention
  • Stops engine blow by
  • High quality construction
  • Meets all OEM specifications
See More

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 Engine Assembly Lubricant, 4 oz. (Part No.M-10012)

Stock Replacement Engine Assembly Lubricant, 4 oz.

from

$6.99
Product Features:
  • Superior Wear Protection – Formulated with extreme pressure additives to protect engine components from metal-to-metal contact during initial startup
  • High Tackiness – Stays in place during assembly and storage, ensuring consistent lubrication exactly where it’s needed
  • Broad Compatibility – Safe for use with all engine components including camshafts, lifters, bearings, and valve train parts
  • Easy Startup Support – Reduces friction and prevents dry starts by providing instant lubrication during first engine fire-up
See More

Melling – Stock Replacement Engine Assembly Lubricant (Part No.M-10012G)

Stock Replacement Engine Assembly Lubricant

from

$113.99
Product Features:
  • Superior Wear Protection – Formulated with extreme pressure additives to protect engine components from metal-to-metal contact during initial startup
  • High Tackiness – Stays in place during assembly and storage, ensuring consistent lubrication exactly where it’s needed
  • Broad Compatibility – Safe for use with all engine components including camshafts, lifters, bearings, and valve train parts
  • Easy Startup Support – Reduces friction and prevents dry starts by providing instant lubrication during first engine fire-up
See More

Most Popular Engine Assembly Lube for 1990 GMC P6000s

Enhance your 1990 GMC P6000 with one of the 3 Engine Assembly Lube we have in stock, starting at just $6.99.

Melling – Stock Replacement Engine Assembly Lubricant (Part No.M-10012G)

Stock Replacement Engine Assembly Lubricant

from

$113.99
Product Features:
  • Superior Wear Protection – Formulated with extreme pressure additives to protect engine components from metal-to-metal contact during initial startup
  • High Tackiness – Stays in place during assembly and storage, ensuring consistent lubrication exactly where it’s needed
  • Broad Compatibility – Safe for use with all engine components including camshafts, lifters, bearings, and valve train parts
  • Easy Startup Support – Reduces friction and prevents dry starts by providing instant lubrication during first engine fire-up
See More

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 Engine Assembly Lubricant, 4 oz. (Part No.M-10012)

Stock Replacement Engine Assembly Lubricant, 4 oz.

from

$6.99
Product Features:
  • Superior Wear Protection – Formulated with extreme pressure additives to protect engine components from metal-to-metal contact during initial startup
  • High Tackiness – Stays in place during assembly and storage, ensuring consistent lubrication exactly where it’s needed
  • Broad Compatibility – Safe for use with all engine components including camshafts, lifters, bearings, and valve train parts
  • Easy Startup Support – Reduces friction and prevents dry starts by providing instant lubrication during first engine fire-up
See More

Best-Selling 1990 GMC P6000 Oil Cap

Upgrade your P6000 with our best-selling Oil Cap with a 5 Starts rating across 4 reviews.

Carquest Premium – Engine Oil Filler Cap: Push Fit, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10072)

Engine Oil Filler Cap: Push Fit, Direct Fit, Provides Tight Seal, 1 Pack

from

$6.99
Manufactured from high quality components by an OE Supplier. Proper fit and sealing prevents oil loss. Designed to OEM specifications. High quality finish is designed to compliment the engine compartment appearance.

Product Features:
  • Provides proper seal to ensure leak prevention
  • Stops engine blow by
  • High quality construction
  • Meets all OEM specifications
See More

Top-Rated Engine Block Brands For Your 1990 GMC P6000

When it comes to finding the perfect Engine Block for your 1990 GMC P6000, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 3 trusted brands. We carry the most popular Engine Block brands including Carquest Premium, and more, all known for their exceptional customer ratings (average brand rating of 4.4 stars) and competitive prices, as low as $6.99. Purchasing a Engine Block from us here at Advance Auto Parts is a smart move for both you and your 1990 GMC P6000, providing peace of mind with parts that meet or exceed OEM standards.

Popular Carquest Premium 1990 GMC P6000 Engine Blocks

If you’re looking for a top-quality Engine Block for your 1990 GMC P6000, Advance Auto Parts has exactly what you need with our selection of Carquest Premium Engine Blocks. We have 1 Carquest Premium Engine Blocks in stock for this fitment, all known for their durability and precision fit. With prices starting at just $6.99, you’ll find the perfect Engine Block for your needs and budget. Carquest Premium Engine Blocks for the 1990 GMC P6000 come highly rated, with over 4 customer reviews and an impressive average rating of 4.4 stars. Choosing a Carquest Premium Engine Block from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.

FAQs for 1990 GMC P6000 Engine Blocks

What are the best-selling Engine Blocks for 1990 GMC P6000s?

Out of 4 Engine Blocks that fit 1990 GMC P6000s, the following parts are the top sellers:

What’s the price range for 1990 GMC P6000 Engine Blocks?

The prices of Engine Blocks for the 1990 GMC P6000 range from $6.99 up to $113.99 for the most premium parts.

What is the average price of an Engine Block for a 1990 GMC P6000?

The average price for Engine Blocks for the 1990 GMC P6000 is $21.68. 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 GMC P6000 model years?

Yes, we carry Engine Blocks for 11 model years of GMC P6000s between 1983 and 1996. The following model years are the most popular for Engine Block purchases: 1993, 1989, 1988, 1987, 1986, 1985, 1984, 1983, and 1995.

What are the cheapest Engine Blocks for my 1990 GMC P6000?

The cheapest 1990 GMC P6000 Engine Blocks we carry are:

Does Advance Auto Parts sell Engine Blocks for any other 1990 GMC models?

Yes. We stock Engine Blocks for 23 other popular 1990 GMC models. Some of the most popular are 1990 Jimmy Engine Blocks, 1990 K2500 Engine Blocks, 1990 C2500 Engine Blocks, 1990 K1500 Engine Blocks, and 1990 C1500 Engine Blocks.

What are the top-rated Engine Blocks that fit the 1990 GMC P6000?

The one 1990 GMC P6000 Engine Block we have in stock is the Engine Oil Filler Cap: Push Fit, Direct Fit, Provides Tight Seal, 1 Pack. It is rated 5 stars and costs $6.99.

What types of Engine Blocks do you sell for my 1990 GMC P6000?

As of 11/2/25, these are some of the most in-demand types of Engine Blocks for a 1990 GMC P6000:

Can I get help with 1990 GMC P6000 Engine Block orders?

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

What is your return policy for GMC P6000 Engine Blocks?

Advance Auto Parts keeps returns simple. For new GMC P6000 Engine Blocks and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.