1981 Buick Century Engine Internals

Essential 1981 Buick Century Engine Internals

Sealed Power – Engine Connecting Rod Bearing Set (Part No.4-2500RAA 30X2)

Engine Connecting Rod Bearing Set

from

$36.49
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:
  • A-Series bi-metal aluminum alloy
  • Greater seizure resistance than tri-metal material
  • Dramatically reduces or eliminates bearing wear
  • Made with silicon to provide greater surface hardness
  • Silicon particles help polish crankshaft journal to further reduce wear during operation
  • Utilizes ISO & QS certified manufacturing
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Sealed Power – Connecting Rod Bearing Set (Part No.8-7100CH 1)

Connecting Rod Bearing Set

from

$76.99
Speed-Pro delivers the power you need and the value and quality that you deserve. Whether you are running at the track, chasing trophies on the strip, or just cruising down the road, count on Speed-Pro to provide the best value in HP engine components

Product Features:
  • Steel-backed Babbitt lining material
  • For use in automotive and high-performance applications
  • Babbitt designed to deform under extreme loads without damaging other engine parts
  • Meets unique demands of performance engines
  • Delivers dependable performance and superior service life
  • Application-specific design for perfect fit and correct operation
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Sealed Power – Engine Connecting Rod Bearing Set (Part No.8-2555A 20X2)

Engine Connecting Rod Bearing Set

from

$74.99
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:
  • Additional oversize OD allows for cost-effective reconditioning
  • A-Series bi-metal aluminum alloy
  • Greater seizure resistance than tri-metal material
  • Dramatically reduces or eliminates bearing wear
  • Made with silicon to provide greater surface hardness
  • Silicon particles help polish crankshaft journal to further reduce wear during operation
See More

Sealed Power – Engine Connecting Rod Bearing Set (Part No.6-3755A 40)

Engine Connecting Rod Bearing Set

from

$38.49
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:
  • A-Series bi-metal aluminum alloy
  • Greater seizure resistance than tri-metal material
  • Dramatically reduces or eliminates bearing wear
  • Made with silicon to provide greater surface hardness
  • Silicon particles help polish crankshaft journal to further reduce wear during operation
  • Utilizes ISO & QS certified manufacturing
See More

Sealed Power – Connecting Rod Bearing Set (Part No.8-7100CH)

Connecting Rod Bearing Set

from

$84.99
Speed-Pro delivers the power you need and the value and quality that you deserve. Whether you are running at the track, chasing trophies on the strip, or just cruising down the road, count on Speed-Pro to provide the best value in HP engine components

Product Features:
  • H14 Super Duty alloy material
  • Our best bronze alloy material – extreme fatigue resistance & strength.
  • Does not have flash tin plating
  • Ensures dependable performance and superior service life
  • Application specific design to ensure a perfect fit and correct operation for unsurpassed quality that you can trust
  • Application-specific design for perfect fit and correct operation
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Sealed Power – Engine Connecting Rod Bearing (Part No.2555CP 1)

Engine Connecting Rod Bearing

from

$5.99
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:
  • Steel-backed bronze alloy lining with overplate
  • Popular for fatigue resistance & strength
  • Provides conformability required for older apps
  • Our standard material is comparable to competitors performance bearing
  • Note – This material offers less resistance to wear & corrosion than other materials.
  • Utilizes ISO & QS certified manufacturing
See More

Sealed Power – Engine Connecting Rod Bearing (Part No.3320CP)

Engine Connecting Rod Bearing

from

$10.99
Sealed Power« Vintage components provide coverage for applications over 35 years old, restoring classics with like new performance. Leading edge materials, ISO & QS certified manufacturing ensures performance and longevity for treasured engine rebuilds.

Product Features:
  • Steel-backed bronze alloy lining with overplate
  • Popular for fatigue resistance & strength
  • Provides conformability required for older apps
  • Our standard material is comparable to competitors performance bearing
  • Note – This material offers less resistance to wear & corrosion than other materials.
  • Utilizes ISO & QS certified manufacturing
See More

Sealed Power – Engine Connecting Rod Bearing (Part No.3320CP 10)

Engine Connecting Rod Bearing

from

$10.99
Sealed Power« Vintage components provide coverage for applications over 35 years old, restoring classics with like new performance. Leading edge materials, ISO & QS certified manufacturing ensures performance and longevity for treasured engine rebuilds.

Product Features:
  • Steel-backed bronze alloy lining with overplate
  • Popular for fatigue resistance & strength
  • Provides conformability required for older apps
  • Our standard material is comparable to competitors performance bearing
  • Note – This material offers less resistance to wear & corrosion than other materials.
  • Utilizes ISO & QS certified manufacturing
See More

Sealed Power – Engine Connecting Rod Bearing (Part No.2555A 2)

Engine Connecting Rod Bearing

from

$4.79
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:
  • A-Series bi-metal aluminum alloy
  • Greater seizure resistance than tri-metal material
  • Dramatically reduces or eliminates bearing wear
  • Made with silicon to provide greater surface hardness
  • Silicon particles help polish crankshaft journal to further reduce wear during operation
  • Utilizes ISO & QS certified manufacturing
See More

Sealed Power – Engine Connecting Rod Bearing (Part No.2020CP 20)

Engine Connecting Rod Bearing

from

$6.99
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:
  • Steel-backed bronze alloy lining with overplate
  • Popular for fatigue resistance & strength
  • Provides conformability required for older apps
  • Our standard material is comparable to competitors performance bearing
  • Note – This material offers less resistance to wear & corrosion than other materials.
  • Utilizes ISO & QS certified manufacturing
See More

Mahle – Crankshaft Seal (Part No.A8060205778MAH)

Crankshaft Seal

from

$16.25
Crankshaft Seal

National – Multi Purpose Seal (Part No.5118)

Multi Purpose Seal

from

$41.99
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Low swell in hydrocarbon fluids
  • Design type: spring loaded; multi-lip
  • Provides good low temperature capability
  • Temperature range: -40°F to 225°F; -40°C to 107°C
  • Delivers quality and reliable performance for every type of repair
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Mahle – Crankshaft Seal (Part No.A8060323445MAH)

Crankshaft Seal

from

$44.28
Crankshaft Seal

Felpro – Engine Crankshaft Seal Kit (Part No.BS 40013)

Engine Crankshaft Seal Kit

from

$25.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Application specific design to ensure a perfect fit
  • Meets or exceeds all original equipment specifications
  • Engineered and manufactured specifically for repair applications
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
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Driveworks – Crankshaft Seal (Part No.S-710162)

Crankshaft Seal

from

$11.49
Product Features:
  • Brand may vary by location
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Mahle – Crankshaft Seal (Part No.A8060205363MAH)

Crankshaft Seal

from

$19.03
Crankshaft Seal

Sealed Power – Engine Crankshaft Main Bearing Set (Part No.7329MA 10)

Engine Crankshaft Main Bearing Set

from

$88.99
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:
  • A-Series bi-metal aluminum alloy
  • Greater seizure resistance than tri-metal material
  • Oversize flange
  • Meets or exceeds OEM specifications
  • Meets or exceeds OEM specifications
  • Made with silicon to provide greater surface hardness
See More

Sealed Power – Engine Crankshaft Main Bearing Set (Part No.4281M)

Engine Crankshaft Main Bearing Set

from

$123.99
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:
  • Steel-backed bronze alloy lining with overplate
  • Popular for fatigue resistance & strength – provides conformability required for older applications
  • State-of-the-art manufacturing
  • Exacting tolerances
  • Meets or exceeds OEM specifications
See More

Sealed Power – Engine Crankshaft Main Bearing Set (Part No.7144MA 30)

Engine Crankshaft Main Bearing Set

from

$56.99
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:
  • A-Series bi-metal aluminum alloy
  • Greater seizure resistance than tri-metal material
  • Reduces dramatically or eliminates bearing wear
  • Exacting tolerances
  • Meets or exceeds OEM specifications
  • Made with silicon to provide greater surface hardness
See More

Sealed Power – Engine Crankshaft Main Bearing Set (Part No.4663M 20)

Engine Crankshaft Main Bearing Set

from

$60.99
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:
  • Steel-backed bronze alloy lining with overplate
  • Popular for fatigue resistance & strength – provides conformability required for older applications
  • State-of-the-art manufacturing
  • Exacting tolerances
  • Meets or exceeds OEM specifications
See More

Sealed Power – Engine Crankshaft Main Bearing Set (Part No.4663M 2)

Engine Crankshaft Main Bearing Set

from

$55.99
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:
  • Steel-backed bronze alloy lining with overplate
  • Popular for fatigue resistance & strength – provides conformability required for older applications
  • State-of-the-art manufacturing
  • Exacting tolerances
  • Meets or exceeds OEM specifications
See More

Sealed Power – Main Bearing Set (Part No.139M 11)

Main Bearing Set

from

$85.99
Speed-Pro delivers the power you need and the value and quality that you deserve. Whether you are running at the track, chasing trophies on the strip, or just cruising down the road, count on Speed-Pro to provide the best value in HP engine components

Product Features:
  • A-Series bi-metal aluminum alloy
  • Greater seizure resistance than tri-metal material
  • IROX coating
  • Polymer coating enhances bearing
  • Made with silicon for greater surface hardness
  • Silicon particles help polish crankshaft journal (reduces wear during operation)
See More

ARP Auto Racing – For Use With Chevy Small Block, 5/8" Socket Size, 3/4" – 16 Thread Size (Part No.134-2501)

For Use With Chevy Small Block, 5/8" Socket Size, 3/4" - 16 Thread Size

from

$36.49
As the crankshaft flexes and twists, the balancer absorbs incredible amounts of kinetic energy. To ensure that the balancer is locked in position, ARP has developed these ultra strong 200,000 PSI bolts that let you exert maximum clamping force. Special features include 1/4 Inch thick, wide area washer and an extra tall 12 point head that accepts a deep socket and eliminates the worry of stripping the head.

Product Features:
  • Ultra Strong Bolt Rated At 200,000 PSI
  • 1/4 Inch Thick, Wide Area Washer And An Extra Tall 12 Point Head That Accepts A Deep Socket And Eliminates The Worry Of Stripping The Head
  • Delivers ARP Quality And Reliability
  • Made In USA
  • 12-Point Head
  • Sold Individually
  • 200,000 PSI
  • 2.470″ Underhead Length
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ARP Auto Racing – For Use With Chevy Small Block, 13/16" Socket Size, 2.470" Under Head L (Part No.234-2501)

For Use With Chevy Small Block, 13/16" Socket Size, 2.470" Under Head L

from

$34.99
As the crankshaft flexes and twists, the balancer absorbs incredible amounts of kinetic energy. To ensure that the balancer is locked in position, ARP has developed these ultra strong 200,000 Pounds Per Square Inch bolts that let you exert maximum clamping force. Special features comes with 1/4 Inch thick, wide area washer and an extra tall 12 point head that accepts a deep socket and eliminates the worry of stripping the head.

Product Features:
  • Ultra Strong Bolt Rated At 200,000 Pounds Per Square Inch
  • 1/4 Inch Thick, Wide Area Washer And An Extra Tall 12 Point Head That Accepts A Deep Socket And Eliminates The Worry Of Stripping The Head
  • Delivers ARP Quality And Reliability
  • Made In USA
  • Sold Individually
  • 7/16″-20 RH Thread Size
  • 2.47″ Underhead Length
  • 200,000 PSI
See More

Mr. Gasket – Ultra Seal: Harmonic Balancer Bolt/Washer Kit (Part No.945G)

Ultra Seal: Harmonic Balancer Bolt/Washer Kit

from

$13.29
This is a high quality bolt set that is made of grade 8 steel and will meet your requirements for a quality bolt set, this set will work on original equipment, high performance street, drag or circle track applications.

Product Features:
  • Has A Zinc Dichromate Finish
  • Made Of High Quality Grade 8 Steel
  • Has A Tall Hex Head To Prevent Wrench Slipping Off
  • Extra Thick Parallel Ground Washer
  • Washer Provides More Accurate And Uniform Torque
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ARP Auto Racing – For Use With Chevy Gen Iii/Ls Series Small Block/ Gmpp Lsx Block, Hex Head (Part No.234-5608)

For Use With Chevy Gen Iii/Ls Series Small Block/ Gmpp Lsx Block, Hex Head

from

$369.99
There are many important reasons to use ARP main stud kits, including the elimination of main cap walk and fretting, as well as protecting the threads in your engine block. All kits come complete with hardened parallel ground washers and high quality nuts. Some applications have provisions for mounting wind age trays and have specially designed standoff studs with serrated lock nuts to position the wind age tray and lock it securely in place. The studs are manufactured from 8740 chrome moly steel, heat treated in-house to 200,000 Pounds Per Square Inch tensile strength, and precision J-form threads rolled after heat treat to create a fastener that has threads 1000 Percent stronger than others.

Product Features:
  • Kit Come Complete With Hardened Parallel Ground Washers And High Quality Nuts
  • Manufactured From 8740 Chrome Moly Steel
  • Heat Treated To 200,000 Pounds Per Square Inch
  • Precision J-Form Threads Rolled After Heat Treat To Create A Fastener That Has Threads 1000 Percent Stronger Than Others
  • 200,000 PSI
  • Sold As A Kit
See More

1981 Buick Century Engine Internals

Maybe you’re in the middle of a full rebuild of that 1981 Buick Century. Maybe you just need a couple of Engine Internals. Either way, Advance Auto Parts has 25 different Engine Internals in our inventory ranging from $6.29 to $369.99. That means you can find the exact parts or products you need to keep that 1981 Buick Century running smoothly.

Engine Internals are only as good as their brand. We stock 3 different brands to make sure you have plenty of trusted parts to choose from for your 1981 Buick Century. Sealed Power, National, and ARP Auto Racing are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!

We know you’ll find the perfect Engine Internals for your 1981 Buick Century, but don’t take our word for it – read our customer ratings and reviews and buy with confidence.

So if you’re in the market for aftermarket Engine Internals to keep your 1981 Buick Century rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!

Engine Internals Brands To Make Your 1981 Buick Century Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1981 Buick Century demands trusted brand parts and products to keep it running. Many trusted brands of Engine Internals make up Advance Auto Parts’ inventory, and all are ready to help make your Century the best it can be. Be sure to browse some of our top Engine Internals brands and parts.

FAQs for 1981 Buick Century Engine Internals

What are the most purchased Engine Internals for the 1981 Buick Century?

Out of 25 Engine Internals for the 1981 Buick Century, the most popular in our inventory are:
Multi Purpose Seal
from $17.79
This product is not rated
Multi Purpose Seal
Crankshaft Seals
Engine Connecting Rod Bearing Set
from $51.99
This product is not rated
Engine Connecting Rod Bearing Set
Standard Rod Bearing Sets
Engine Connecting Rod Bearing Set
from $41.49
This product is not rated
Engine Connecting Rod Bearing Set
Standard Rod Bearing Sets