1974 GMC P25/P2500 Van Engine Blocks
Keep Your 1974 GMC P25/P2500 Van 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 1974 GMC P25/P2500 Van looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Oil Pump Shafts, 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 . For example, Engine Blocks start at just $6.99 with an average 4.4 star rating. With over 31 reviews and a solid 5 star average, you can shop with confidence knowing other GMC P25/P2500 Van owners approve.
Competitive Prices and Extensive Inventory
The average price for a 1974 GMC P25/P2500 Van Engine Block at Advance Auto Parts is around $10.19, with a range that starts at $6.99 and goes up to $24.99. With 4 options in stock from 3 trusted brands, finding the right fit is easy. Popular picks like For Use With All Chevy Small Blocks, 8740 Steel, 190000 Psi 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 Camshafts and Engine Timing Parts. At Advance Auto Parts, we’re here to help you keep your 1974 GMC P25/P2500 Van in peak condition, inside and out.
Find Your Specific 1974 GMC P25/P2500 Van Engine Blocks
Looking for the perfect Engine Block for your 1974 GMC P25/P2500 Van? You’re in the right place. Below, you’ll find links to various types of Engine Blocks that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Engine Blocks, ensuring durability and a precise fit for your GMC P25/P2500 Van. Whether you’re driving a 1974 model or another popular model year like
1967,
1968,
1969,
1970,
1971,
1972, and
1973, we’ve got you covered. Purchasing Engine Blocks from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Engine Blocks that fit your vehicle.
Essential 1974 GMC P25/P2500 Van Engine Blocks
Melling Select Performance – Engine Oil Pump Intermediate Shaft (Part No.12770)
from
$32.99
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 and even twisting damage of the old shaft even when the part appears to be in good condition. Complete every Melling oil pump replacement with a new Melling oil pump shaft.
Product Features:
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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
Melling – Stock Replacement Type Oil Pump Intermediate Shaft (Part No.IS-55E)
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:
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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
Melling – Stock Replacement Type Oil Pump Intermediate Shaft (Part No.IS-77)
from
$23.99
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:
See More
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
ARP Auto Racing – For Use With Chevy Big Block, 8740 Steel, 190000 Psi (Part No.135-7901)
from
$25.99
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:
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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
Sealed Power – Engine Oil Pump Intermediate Shaft (Part No.224-6154)
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:
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Product Features:
- Unsurpassed quality that you can trust
- Uses leading edge materials
- State-of-the-art manufacturing
- Exacting tolerances
- Meets or exceeds OEM specifications
Melling – Stock Replacement Type Oil Pump Intermediate Shaft (Part No.IS-77A)
from
$12.79
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:
See More
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
ARP Auto Racing – For Use With All Chevy Small Blocks, 8740 Steel, 190000 Psi (Part No.134-7901)
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:
See More
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
Melling – Stock Replacement Type Oil Pump Intermediate Shaft (Part No.IS-55G)
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:
See More
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
Melling – Stock Replacement Engine Assembly Lubricant (Part No.M-10012G)
from
$113.99
Product Features:
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- 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
Sealed Power – Engine Assembly Lubricant (Part No.55-400)
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:
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Product Features:
- Formulated for pre-lubrication 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
Carquest Premium – Engine Oil Filler Cap: Push Fit, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10072)
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:
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Product Features:
- Provides proper seal to ensure leak prevention
- Stops engine blow by
- High quality construction
- Meets all OEM specifications
Carquest Premium – Engine Oil Filler Cap: Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10066)
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:
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Product Features:
- Provides proper seal to ensure leak prevention
- Stops engine blow by
- High quality construction
- Meets all OEM specifications
Popular 1974 GMC P25/P2500 Van Engine Blocks Categories
Most Popular Oil Pump Shaft for 1974 GMC P25/P2500 Vans
Enhance your 1974 GMC P25/P2500 Van with this popular Oil Pump Shaft we have in stock, for $24.99.
ARP Auto Racing – For Use With All Chevy Small Blocks, 8740 Steel, 190000 Psi (Part No.134-7901)
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:
See More
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
Best-Selling 1974 GMC P25/P2500 Van Engine Assembly Lube
Upgrade your P25/P2500 Van with our best-selling Engine Assembly Lube.
Sealed Power – Engine Assembly Lubricant (Part No.55-400)
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:
See More
Product Features:
- Formulated for pre-lubrication 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
Top-Quality Oil Caps for 1974 GMC P25/P2500 Vans
Choose a high-quality OEM or aftermarket Oil Cap for GMC P25/P2500 Vans and enjoy top-notch performance from $6.99.
Carquest Premium – Engine Oil Filler Cap: Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10066)
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:
See More
Product Features:
- Provides proper seal to ensure leak prevention
- Stops engine blow by
- High quality construction
- Meets all OEM specifications
Carquest Premium – Engine Oil Filler Cap: Push Fit, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10072)
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:
See More
Product Features:
- Provides proper seal to ensure leak prevention
- Stops engine blow by
- High quality construction
- Meets all OEM specifications
Top-Rated Engine Block Brands For Your 1974 GMC P25/P2500 Van
When it comes to finding the perfect Engine Block for your 1974 GMC P25/P2500 Van, 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 , 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 1974 GMC P25/P2500 Van, providing peace of mind with parts that meet or exceed OEM standards.
Popular Carquest Premium 1974 GMC P25/P2500 Van Engine Blocks
If you’re looking for a top-quality Engine Block for your 1974 GMC P25/P2500 Van, Advance Auto Parts has exactly what you need with our selection of Carquest Premium Engine Blocks. We have 2 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 1974 GMC P25/P2500 Van come highly rated, with over 19 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.
from
$6.99
(4)
Engine Oil Filler Cap: Push Fit, Direct Fit, Provides Tight Seal, 1 Pack
“Worked great!”
from
$6.99
(15)
Engine Oil Filler Cap: Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack
“Direct fit for 194 gif 350”
FAQs for 1974 GMC P25/P2500 Van Engine Blocks
What are the best-selling Engine Blocks for 1974 GMC P25/P2500 Vans?
Out of 4 Engine Blocks that fit 1974 GMC P25/P2500 Vans, the following parts are the top sellers:
- For Use With All Chevy Small Blocks, 8740 Steel, 190000 Psi (11530101) – $24.99
- Engine Assembly Lubricant (20686470) – $10.49
What’s the price range for 1974 GMC P25/P2500 Van Engine Blocks?
The prices of Engine Blocks for the 1974 GMC P25/P2500 Van range from $6.99 up to $24.99 for the most premium parts.
What is the average price of an Engine Block for a 1974 GMC P25/P2500 Van?
The average price for Engine Blocks for the 1974 GMC P25/P2500 Van is $10.19. 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 P25/P2500 Van model years?
What are the cheapest Engine Blocks for my 1974 GMC P25/P2500 Van?
The cheapest 1974 GMC P25/P2500 Van Engine Blocks we carry are:
- Engine Oil Filler Cap: Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack (18481405) – $6.99
- Engine Oil Filler Cap: Push Fit, Direct Fit, Provides Tight Seal, 1 Pack (18481408) – $6.99
- Engine Assembly Lubricant (20686470) – $10.49
- For Use With All Chevy Small Blocks, 8740 Steel, 190000 Psi (11530101) – $24.99
Does Advance Auto Parts sell Engine Blocks for any other 1974 GMC models?
Yes. We stock Engine Blocks for 16 other popular 1974 GMC models. Some of the most popular are 1974 Jimmy Engine Blocks, 1974 G25/G2500 Van Engine Blocks, 1974 C15/C1500 Pickup Engine Blocks, 1974 C15/C1500 Suburban Engine Blocks, and 1974 K15/K1500 Pickup Engine Blocks.
What are the top-rated Engine Blocks that fit the 1974 GMC P25/P2500 Van?
The one 1974 GMC P25/P2500 Van Engine Block we have in stock is the Engine Oil Filler Cap: Twist-Lock, 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 1974 GMC P25/P2500 Van?
As of 3/1/26, these are some of the most in-demand types of Engine Blocks for a 1974 GMC P25/P2500 Van:
Can I get help with 1974 GMC P25/P2500 Van 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 P25/P2500 Van Engine Blocks?
Advance Auto Parts keeps returns simple. For new GMC P25/P2500 Van Engine Blocks and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.