1990 Pontiac Firebird Engine Blocks
Keep Your 1990 Pontiac Firebird 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 Pontiac Firebird 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 Carquest Premium and Melling. For example, Carquest Premium Engine Blocks start at just $6.99 with an average 4.4 star rating. Melling offer similar pricing and quality, backed by strong customer feedback. With over 108 reviews and a solid 5 star average, you can shop with confidence knowing other Pontiac Firebird owners approve.
Competitive Prices and Extensive Inventory
The average price for a 1990 Pontiac Firebird Engine Block at Advance Auto Parts is around $16.37, with a range that starts at $6.99 and goes up to $24.99. With 7 options in stock from 4 trusted brands, finding the right fit is easy. Popular picks like Stock Replacement Type Oil Pump Intermediate Shaft, Stock Replacement Type Oil Pump Intermediate Shaft, and Stock Replacement Type Oil Pump Intermediate Shaft start at just $16.49 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 1990 Pontiac Firebird in peak condition, inside and out.
Find Your Specific 1990 Pontiac Firebird Engine Blocks
Looking for the perfect Engine Block for your 1990 Pontiac Firebird? 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 Pontiac Firebird. Whether you’re driving a 1990 model or another popular model year like
1994,
1995,
1996,
1997,
1998,
1999,
2000,
2001, and
2002, 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 1990 Pontiac Firebird Engine Blocks
Melling – Stock Replacement Type Oil Pump Intermediate Shaft (Part No.IS-22F)
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 Type Oil Pump Intermediate Shaft (Part No.IS-54A)
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:
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 Select Performance – Engine Oil Pump Intermediate Shaft (Part No.12550)
from
$34.99
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:
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 Type Oil Pump Intermediate Shaft (Part No.IS-95)
from
$16.49
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 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:
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 Type Oil Pump Intermediate Shaft (Part No.IS-62C)
from
$30.49
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
Carquest Premium – Engine Oil Filler Cap: Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10099)
from
$10.99
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
Carquest Premium – Oil Filler Cap (Part No.10077)
from
$5.99
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: 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: Screw On, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10105)
from
$8.49
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: Screw On, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10104)
from
$5.99
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
Melling – Stock Replacement Engine Assembly Lubricant (Part No.M-10012G)
from
$113.99
Product Features:
See More
- 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
Melling – Stock Replacement Engine Assembly Lubricant, 4 oz. (Part No.M-10012)
from
$6.99
Product Features:
See More
- 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:
See More
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
Popular 1990 Pontiac Firebird Engine Blocks Categories
Most Popular Oil Pump Shafts for 1990 Pontiac Firebirds
Enhance your 1990 Pontiac Firebird with one of the 4 Oil Pump Shafts we have in stock, starting at just $16.49.
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:
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 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
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-95)
from
$16.49
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
Best-Selling 1990 Pontiac Firebird Engine Assembly Lube
Upgrade your Firebird 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 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
Top-Quality Oil Caps for 1990 Pontiac Firebirds
Choose a high-quality OEM or aftermarket Oil Cap for Pontiac Firebirds and enjoy top-notch performance from $6.99.
Carquest Premium – Engine Oil Filler Cap: Screw On, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10105)
from
$8.49
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 1990 Pontiac Firebird
When it comes to finding the perfect Engine Block for your 1990 Pontiac Firebird, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 4 trusted brands. We carry the most popular Engine Block brands including Carquest Premium and Melling, 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 Pontiac Firebird, providing peace of mind with parts that meet or exceed OEM standards.
Popular Carquest Premium 1990 Pontiac Firebird Engine Blocks
If you’re looking for a top-quality Engine Block for your 1990 Pontiac Firebird, 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 and an average cost of $7.74, you’ll find the perfect Engine Block for your needs and budget. Carquest Premium Engine Blocks for the 1990 Pontiac Firebird come highly rated, with over 10 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
$8.49
(6)
Engine Oil Filler Cap: Screw On, Direct Fit, Provides Tight Seal, 1 Pack
“Perfect fit”
from
$6.99
(4)
Engine Oil Filler Cap: Push Fit, Direct Fit, Provides Tight Seal, 1 Pack
“Worked great!”
Top-Quality Melling 1990 Pontiac Firebird Engine Blocks
For those in search of a high-quality Engine Block for their 1990 Pontiac Firebird, Advance Auto Parts offers a great selection of Melling Engine Blocks. With 1 Melling Engine Blocks in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Engine Blocks start at just $21.99, giving you a range of options to suit your budget. Backed by over 7 customer ratings and an average rating of 4.3 stars, Melling Engine Blocks provide both reliability and excellent performance. Choosing a Melling Engine Block from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
from
$21.99
(7)
Stock Replacement Type Oil Pump Intermediate Shaft
“After checking several sources Advance Auto hadthe best value.”
FAQs for 1990 Pontiac Firebird Engine Blocks
What are the best-selling Engine Blocks for 1990 Pontiac Firebirds?
Out of 7 Engine Blocks that fit 1990 Pontiac Firebirds, the following parts are the top sellers:
- Stock Replacement Type Oil Pump Intermediate Shaft (3681491) – $21.99
- Stock Replacement Type Oil Pump Intermediate Shaft (5687837) – $17.79
- Stock Replacement Type Oil Pump Intermediate Shaft (5680956) – $16.49
What’s the price range for 1990 Pontiac Firebird Engine Blocks?
The prices of Engine Blocks for the 1990 Pontiac Firebird range from $6.99 up to $24.99 for the most premium parts.
What is the average price of an Engine Block for a 1990 Pontiac Firebird?
The average price for Engine Blocks for the 1990 Pontiac Firebird is $16.37. 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 Pontiac Firebird model years?
What are the cheapest Engine Blocks for my 1990 Pontiac Firebird?
The cheapest 1990 Pontiac Firebird Engine Blocks we carry are:
- Engine Oil Filler Cap: Push Fit, Direct Fit, Provides Tight Seal, 1 Pack (18481408) – $6.99
- Engine Oil Filler Cap: Screw On, Direct Fit, Provides Tight Seal, 1 Pack (18481436) – $8.49
- Engine Assembly Lubricant (20686470) – $10.49
- Stock Replacement Type Oil Pump Intermediate Shaft (5680956) – $16.49
- Stock Replacement Type Oil Pump Intermediate Shaft (5687837) – $17.79
Does Advance Auto Parts sell Engine Blocks for any other 1990 Pontiac models?
Yes. We stock Engine Blocks for 6 other popular 1990 Pontiac models. Some of the most popular are 1990 Grand Prix Engine Blocks, 1990 Bonneville Engine Blocks, 1990 Grand Am Engine Blocks, 1990 LeMans Engine Blocks, and 1990 Sunbird Engine Blocks.
What are the top-rated Engine Blocks that fit the 1990 Pontiac Firebird?
Based on 108 reviews by customers, our 1990 Pontiac Firebird Engine Blocks have an average customer rating of 5 stars. These are the highest-rated categories of Engine Blocks for the 1990 Pontiac Firebird and their top-rated products:
- Oil Caps
- Engine Oil Filler Cap: Push Fit, Direct Fit, Provides Tight Seal, 1 Pack (18481408) – $6.99
- Engine Oil Filler Cap: Screw On, Direct Fit, Provides Tight Seal, 1 Pack (18481436) – $8.49
- Oil Pump Shafts
- Stock Replacement Type Oil Pump Intermediate Shaft (3681491) – $21.99
What types of Engine Blocks do you sell for my 1990 Pontiac Firebird?
As of 11/2/25, these are some of the most in-demand types of Engine Blocks for a 1990 Pontiac Firebird:
Can I get help with 1990 Pontiac Firebird Engine Block orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Pontiac Engine Blocks and more.
What is your return policy for Pontiac Firebird Engine Blocks?
Advance Auto Parts keeps returns simple. For new Pontiac Firebird Engine Blocks and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.