1981 GMC K2500 Engine Parts

Essential 1981 GMC K2500 Engine Parts

Sealed Power – Engine Connecting Rod Bearing (Part No.2555A 20)

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
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Driveworks – Oil Seal (Part No.S-4333N)

Oil Seal

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$11.49
Value-priced seal meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
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Cloyes Gear – Engine Timing Set (Part No.C-3059K)

Engine Timing Set

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$34.49
Timing Set includes all components for a quick and efficient replacement

Product Features:
  • Utilizes the latest in design and technology to offer complete chain sets
  • CAD designed and manufactured using premium materials
  • Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Utilizes the latest in design and technology to offer complete chain sets
  • Refer to our online catalog for detailed application-specific information
  • Set Includes: Cam Sprocket, Crankshaft Sprocket, Timing Chain
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Sealed Power – Engine Gasket Set (Part No.260-1621)

Engine Gasket Set

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$142.99
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:
  • Each 260 gasket set includes Fel-Pro gaskets (# 1 brand of gaskets)
  • Provides the exact gaskets the application requires.
  • State-of-the-art manufacturing
  • Exacting tolerances
  • Meets or exceeds OEM specifications
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Sealed Power – Engine Push Rod (Part No.RP-3348)

Engine Push Rod

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$4.29
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:
  • State-of-the-art manufacturing
  • Exceptional material quality
  • Exacting tolerances
  • Heat treated tips
  • Stock or mild modified replacement
  • Made in USA
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Cloyes Performance – High Performance Timing Chain (Part No.9-131)

High Performance Timing Chain

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$80.99
High Performance 3/8″ Pitch Double Roller Replacement TRUE Roller Chain. 0.250″ Roller Diameter. Heat Treated and Processed Links to Maximize Ultimate Breaking Strength while Remaining Ductile for Toughness. Pre-stressed to Increase Fatigue Life.

Product Features:
  • A timing chain synchronizes the rotation of the crankshaft and camshaft(s), ensuring proper timing of the engines valve events for each cylinder
  • Our chains are engineered and manufactured with precision pitch control for proper chain-to-sprocket tooth fitment
  • From stock replacement to high performance, Cloyes has the most complete timing chain catalog
  • Cloyes parts are CAD designed and manufactured using premium materials. Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Cloyes recommends the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced as these components play a vital role in system stability and accurate timing
  • Refer to our online catalog for detailed application-specific information
  • Keep your engines valvetrain in perfect time with Cloyes, the world leader in timing drive systems
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Spectre – Valve Cover (Part No.5258)

Valve Cover

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$39.99
Available in various sizes, heights, and finishes, Spectre offers a wide variety of high performance valve covers designed to easily replace your stock covers. Designed for 1958-1986 Chevrolet Small Block 265-400 engines, this 3-hole valve cover features chrome-plated steel construction and a smooth design. Sold in pairs, this stock profile cover is baffled to provide optimum function. With show quality construction and a sealing edge designed for an ideal fit, our valve covers are engineered to look great for applications ranging from custom builds to replacing stock equipment.

Product Features:
  • Designed for 1958-1986 Chevrolet Small Block 265-400 engines
  • Baffled for breather system compatibility
  • Sold in pairs
  • Triple chrome-plated steel construction
  • Stock height
  • Features OEM style sealing edge
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Felpro – Engine Valve Cover Gasket Set (Part No.VS 12869 AC)

Engine Valve Cover Gasket Set

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$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:
  • DESIGNED FOR IMPERFECT SEALING SURFACES — Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
  • ENGINEERED TO PERFORM — Proprietary cork-rubber formulation
  • SUPERIOR SEAL — Highly conformable to accommodate for the imperfect sealing surfaces
  • EVERY PART FOR THE REPAIR — Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
  • REAL-WORLD TESTED — Parts are tested on-vehicle and validated to ensure optimal performance on the road
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Felpro – Engine Conversion Gasket Set (Part No.CS 8006-2)

Engine Conversion Gasket Set

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$35.49
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:
  • Conversion Sets (CS) provide every gasket for lower engine work – add a Head Set (HS) for complete engine overhaul work
  • Application specific design to ensure a perfect fit
  • Meets or exceeds all original equipment specifications
  • Validated for fit, form and function
  • Unsurpassed quality you can trust
  • Includes all the parts necessary to complete the repair unless otherwise noted
  • Includes all the parts necessary to complete the repair unless otherwise noted
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ARP Auto Racing – ARP Cylinder Head Stud Kit (Part No.234-4301)

ARP Cylinder Head Stud Kit

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$316.99
ARP only uses premium grade 8740 alloy and a proprietary ARP2000 alloy that are rated for superior to “aircraft” quality alloy steels. Secondly, each stud is placed vertically into special racks and precisely heat-treated to 200,000 psi for the 8740 material and 220,000 psi for the ARP2000 material. This procedure ensures complete heat penetration and the results are far superior to those lesser quality studs from other manufacturers who just dump pieces in a basket and hope for the best. 

Product Features:
  • 1/2″ 12-Point, 3/16″ Allen Socket Size(s)
  • 8740 Chromoly
  • Black Oxide
  • Small Block Chevy
  • Sold As A Kit
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Mr. Gasket – Ultra Seal; Harmonic Balancer Bolt/Washer Kit (Part No.7845)

Ultra Seal; Harmonic Balancer Bolt/Washer Kit

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$25.99
The grade 8 bolts feature high hex head to prevent socket slippage. The thick parallel ground washer allows accurate uniform torque. Black finished, complete with split lock washer to prevent loosening.

Product Features:
  • This bolt set has a black oxide finish
  • Tall hex head bolt to prevent slippage
  • Extra thick parallel ground washer
  • Washers provides more accurate and uniform torque
  • Grade 8 alloy steel
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Imperial – Engine Oil Cooler (Part No.241046)

Engine Oil Cooler

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$259.99
Product Features:
  • Imperial Swirl-Cool« engine oil cooler kit
  • Size: 1-1/2″ x 6-1/2″ x 18″
  • Heavy-duty applications
  • Chevrolet V8 applications
  • Size: 1.5 in. x 6.5 in. x 18 in.
  • Heavy duty applications
  • Specifically designed for Chevrolet V8 applications with metal line kit for easier installation
  • Two-pass design for increased cooling
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Mr. Gasket – Billet Style Aluminum Crankshaft Pulley (Part No.5317)

Billet Style Aluminum Crankshaft Pulley

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$92.99
Double groove, crankshaft pulley, LWP, 1969-85. The pulley has been heat treated for strength and has an attractive satin finish. It is manufactured from machined aluminum to give your engine a hi-tech look.

Product Features:
  • Machined aluminum
  • Heat treated
  • Attractive satin finish
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Felpro – CYLINDER HEAD BOLT SET (Part No.ES 72264)

CYLINDER HEAD BOLT SET

from

$47.99
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:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Avoid risk associated with re-use of T-T-Y (torque to yield) head bolts
  • Validated for fit, form and function
  • Unsurpassed quality you can trust
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Felpro – Engine Push Rod Gasket Set (Part No.PS 13228)

Engine Push Rod Gasket Set

from

$16.29
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:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered and manufactured specifically for the repair environment
  • Unsurpassed quality you can trust
  • Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
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Sealed Power – Engine Intake Valve (Part No.V-1926)

Engine Intake Valve

from

$4.99
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:
  • Chrome plated stem
  • Hard coating added to surface for strength & aiding in lubrication
  • Note – coating added in varying thicknesses depending on application
  • Innovative design, using leading edge materials
  • Utilizes ISO & QS certified manufacturing
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Dorman – Engine Oil Pan: Direct Fit, Steel, Rear Sump (Part No.264-103)

Engine Oil Pan: Direct Fit, Steel, Rear Sump

from

$99.99
Oil pan leaking? This engine oil pan is precision-engineered to match the original equipment pan on specific vehicle years, makes and models for a reliable replacement.

Product Features:
  • Direct replacement – this engine oil pan is made to match the original pan on specific vehicles
  • Complete assembly – includes replacement pan and drain plugs to match original components
  • Durable design – high-strength coating prevents future corrosion
  • Trustworthy value – backed by team of engineers and quality control experts in the United States
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Melling – Stock Replacement Type Oil Pump Intermediate Shaft (Part No.IS-77A)

Stock Replacement Type Oil Pump Intermediate Shaft

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:
  • 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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Sealed Power – Performance Camshaft (Part No.CS-1014R)

Performance Camshaft

from

$98.99
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:
  • Reliable performance with significant power increase vs stock
  • Good low-end torque
  • Recommended for tow vehicle, street rod or muscle car
  • Power range: 1000-3500rpm
  • Idle: stock
  • Cruise: 1600-2200rpm
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Dorman – Rubber Expansion Plug 2-1/8 In. – Size Range 2-1/8 In. – 2-1/4 In. (sold by each) (Part No.570-016)

Rubber Expansion Plug 2-1/8 In. - Size Range 2-1/8 In. - 2-1/4 In. (sold by each)

from

$5.99
This engine camshaft plug is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:
  • Direct replacement – this engine camshaft plug matches the fit and function of the factory part on specified years, makes and models
  • Ideal solution – this plug is a reliable replacement for an original part that is missing or has failed due to fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Weiand – Pro-Street; Supercharger Kit (Part No.6542-1)

Pro-Street; Supercharger Kit

from

$4107.99


Product Features:
  • Develop 400 To 450 Plus Horsepower
  • Low Profile Design For Good Conscious Rodders
  • Increases Torque For Heavy Cars And Towing Apps.
  • Great Power Adder For Low Compression Crate Motors
  • Various Snout Lengths For Different V-Belt Arngm.
  • Full Time Power Every Time You Hit The Gas
  • w/No Lag
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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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Competition Cams – Xtreme Energy 218/224 Hydraulic Roller Cam K-Kit for Chevrolet Big Block 396-454 (Part No.K11-422-8)

Xtreme Energy 218/224 Hydraulic Roller Cam K-Kit for Chevrolet Big Block 396-454

from

$1540.99
Featuring a quicker valve opening, the Xtreme Energy camshaft profile provides increased responsiveness and more area under the lift curve than older, slower grinds. Designed to increase performance without sacrificing driveability and creature comforts,

Product Features:
  • Excellent performance in street carbureted applications.
  • More vacuum allows an increase in duration for improved performance and assists power brakes.
  • Quicker opening lobe profiles deliver increased responsiveness and more area under the lift curve.
  • Best performance with aftermarket intake manifolds, headers, lower gear ratios etc.
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Sealed Power – Engine Piston Ring Set (Part No.E-921K)

Engine Piston Ring Set

from

$182.99
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:
  • Face of top rings coated with latest generation Plasma-Moly
  • Decreases friction
  • Very resistant to scuffing
  • Exacting tolerances
  • Meets or exceeds OEM specifications
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Sealed Power – Engine Rocker Arm Kit (Part No.R-832)

Engine Rocker Arm Kit

from

$4.29
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:
  • Complete rocker arm assembly
  • 1 Arm
  • 1 Ball
  • 1 Nut
  • Utilizes ISO & QS certified manufacturing
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Dorman – Pik-a-Nut – Steel Cup Expansion Plug 2-3/32 In., SC, Height 0.278 (Part No.362566.1)

Steel Cup Expansion Plug 2-3/32 In., SC, Height 0.278

from

$2.29
This engine camshaft plug is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:
  • Direct replacement – this engine camshaft plug matches the fit and function of the factory part on specified years, makes and models
  • Ideal solution – this plug is a reliable replacement for an original part that is missing or has failed due to fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Felpro – Engine Timing Cover Repair Sleeve (Part No.16205)

Engine Timing Cover Repair Sleeve

from

$11.29
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:
  • Engine$aver Hardware cost-saving application
  • Repairs worn sealing surfaces to assure a leak free repair
  • 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
  • Validated for fit, form, and function
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Felpro – Engine Timing Cover Repair Sleeve (Part No.16202)

Engine Timing Cover Repair Sleeve

from

$11.29
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:
  • Engine$aver Hardware cost-saving application
  • Repairs worn sealing surfaces to assure a leak free repair
  • 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
  • Validated for fit, form, and function
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Popular 1981 GMC K2500 Engine Parts Categories

1981 GMC K2500 Engine Parts

You count on your 1981 GMC K2500 to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Engine Parts. With 377 Engine Parts ranging in price from $0.43 to $5,984.99, you’re sure to find everything you need for your 1981 GMC K2500.

Brands matter. If you want to shop a specific Engine Parts brand, we stock 24 different brands like Sealed Power, Felpro, and Melling. 1981 GMC K2500 Engine Parts start as low as $0.43!

One of the best ways to find top quality OEM or aftermarket Engine Parts is by asking professionals. Short of that, you can shop with confidence thanks to our 1,101 extensive product reviews on 1981 GMC K2500 Engine Parts. Some of the top-rated Engine Parts products we carry are Engine Long Block; Chev 350 64-85 H.P. Mid-Drss with 4.8 stars and Engine Valve Cover Gasket Set with 4.6 stars.

Did we mention you can order your Engine Parts from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Engine Parts inventory for your 1981 GMC K2500 below to get started!

Top-Rated Engine Parts Brands For Your 1981 GMC K2500

Trusted Engine Parts OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 1981 GMC K2500 running right for years to come. In our inventory you’ll find brands like Sealed Power, Felpro, Melling, and even more.

Popular Anchor Engine Parts

You’ll find popular Anchor brand products across Engine Mounts. All are waiting to get your 1981 GMC K2500 back on the road. Some of the top-rated Anchor products in these categories are:
Engine Mount: Front Left, Front Right, 1 Piece
from $13.49
(18)
Engine Mount: Front Left, Front Right, 1 Piece
Engine Mounts

FAQs for 1981 GMC K2500 Engine Parts

What are the most purchased Engine Parts for the 1981 GMC K2500?

Out of 377 Engine Parts for the 1981 GMC K2500, the most popular in our inventory are:
Engine Valve Lifter
from $13.99
(15)
Engine Valve Lifter
Engine Valve Lifters
Engine Push Rod
from $2.99
(5)
Engine Push Rod
Push Rods
TIMING COVER GASKET SET
from $19.99
(24)
TIMING COVER GASKET SET
Timing Cover Gasket Sets

What are the top-rated 1981 GMC K2500 Engine Parts?

Top-rated Engine Parts for your 1981 GMC K2500 based on customer reviews/ratings are:
Engine Long Block; Chev 350 64-85 H.P. Mid-Drss
from $4158.99
(32)
Engine Long Block; Chev 350 64-85 H.P. Mid-Drss
“Brakes are quiet and have not left dust.”
Engine Valve Cover Gasket Set
from $25.99
(17)
Engine Valve Cover Gasket Set
“Good product.”
Engine Oil Filler Cap: 10066, Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack
from $5.49
(15)
Engine Oil Filler Cap: 10066, Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack
“Its an oil cap that fit and was cheap.”