1977 GMC G25 Engine Parts

Essential 1977 GMC G25 Engine Parts

Felpro – Engine Valve Cover Gasket Set (Part No.VS 12869 R)

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:
  • EVERY PART FOR THE REPAIR — Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
  • DESIGNED FOR IMPERFECT SEALING SURFACES — Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
  • ENGINEERED TO PERFORM — Proprietary rubber formulation
  • SUPERIOR SEAL — Highly conformable to accommodate for the imperfect sealing surfaces
  • REAL-WORLD TESTED — Parts are tested on-vehicle and validated to ensure optimal performance on the road
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Dorman – Steel Cup Expansion Plug 2-3/32 In., Height 0.530 (sold by each) (Part No.555-085)

Steel Cup Expansion Plug 2-3/32 In., Height 0.530 (sold by each)

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$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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Sealed Power – Engine Rocker Arm Kit (Part No.R-826)

Engine Rocker Arm Kit

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$3.49
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:
  • Complete rocker arm assembly
  • 1 Arm
  • 1 Ball
  • 1 Nut
  • Utilizes ISO & QS certified manufacturing
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Carquest Premium – Engine Oil Filler Cap: 10066, Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10066)

Engine Oil Filler Cap: 10066, Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack

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$5.49
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:
  • Provides proper seal to ensure leak prevention
  • Stops engine blow by
  • High quality construction
  • Meets all OEM specifications
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Sealed Power – Engine Connecting Rod Bearing (Part No.2555A 10)

Engine Connecting Rod Bearing

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$5.29
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:
  • 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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Edelbrock – Small-Block Chevy E-Street Cylinder Heads 64cc (Part No.5089)

Small-Block Chevy E-Street Cylinder Heads 64cc

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$1229.99
The Edelbrock #5089 E-Street cylinder heads are designed for use with 1955-1986 Small-Block Chevy applications. The Edelbrock E-Street cylinder heads offer American made quality and affordable performance. E-Street cylinder heads feature as-cast ports and

Product Features:
  • Complete Pair For Hydraulic Flat Tappet
  • 64cc Combustion Chamber Volume
  • 2.02cc Intake/60cc Exhaust Runner Volume
  • 2.02 in. Intake/1.6 in. Exhaust Valve Diameter
  • 0.562 in. Deck Thickness
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Dorman – Help – Oil Pump Bushing (Part No.90460)

Oil Pump Bushing

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$4.99
This engine oil pump bushing 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 oil pump bushing matches the fit and function of the factory part on specified years, makes and models
  • Ideal solution – this bushing is a reliable replacement for an original part that 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 Valve Cover Load Spreader Set (Part No.ES 72676)

Engine Valve Cover Load Spreader Set

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$34.49
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:
  • 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
  • Includes all parts needed to complete the repair
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Dorman – Pipe Plug C.S. Square 1/4-18 Npt, Head Size 1/4 In. (sold by each) (Part No.090-067)

Pipe Plug C.S. Square 1/4-18 Npt, Head Size 1/4 In. (sold by each)

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$4.99
This engine cylinder head 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 cylinder head 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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Mr. Gasket – Timing Tab (Part No.4594)

Timing Tab

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$16.99
Installs using stock timing cover bolts. Chrome plated steel is a much better compliment to a chromed timing cover. Has markings from 16 degrees before top dead center (BTDC) to 4 degrees after top dead center (ATDC).

Product Features:
  • Bolts on with existing timing cover bolts
  • Chrome plated steel is a much better compliment for chrome timing covers
  • Markings for 16 degrees BTDC to 4 degrees ATDC
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Dorman – Connecting Rod Nuts, Type 2, 3/8-24 X 9/16 In., Ford (sold by each) (Part No.635-002)

Connecting Rod Nuts, Type 2, 3/8-24 X 9/16 In., Ford (sold by each)

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$1.29
This engine connecting rod nut 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 connecting rod nut matches the fit and function of the factory part on specified years, makes and models
  • Ideal solution – this nut 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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Cloyes Gear – Engine Timing Camshaft Gear (Part No.2526)

Engine Timing Camshaft Gear

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$33.99
Along with the timing chain, tensioners, and guides, sprockets are an integral component within the timing system. Timing gears and sprockets are available as part of complete timing kits as well as for individual purchase and installation

Product Features:
  • Featuring precision-tooled or machined tooth form and precision-machined bore for true fit, timing chain gears offer reliability and dependability for engine rebuilds and typical replacement jobs
  • Helical tooth form for quiet operation and precision machined bore for true fit
  • CAD designed and manufactured using premium materials to ensure optimal performance
  • Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Refer to our online catalog for detailed application-specific information
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Anchor – Engine Mount: Front Left, Front Right, 1 Piece (Part No.2292)

Engine Mount: Front Left, Front Right, 1 Piece

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$13.49
The purpose of the mount is to support the engine and transmission on the chassis and dampen vibration and noise from reverberating to the rest of the vehicle. Engine and Transmission Mounts are engineered and manufactured to meet or exceed OEM specifications using the latest CAD/CAM engineering process to ensure superior quality, form, fit and function. Only premium quality materials are used in the manufacturing process to guarantee precise performance and maximum durability. Applicable to Applicable to BUIC 68-96; CADI 76-96; CHEV 72-05; GMC 73-99; OLDS 73-92; PONT 73-92;. Please verify your application.

Product Features:
  • MAXIMUM LIFE & PERFORMANCE: Both natural and SBR (Styrene Butadiene) rubber provide good abrasion resistance and aging stability to ensure maximum life and performance.
  • MEETS OR EXCEEDS DUROMETER MEASUREMENTS: All rubber material is manufactured to specific Durometer (hardness) measurements based on the vehicle’s application requirements.
  • HARDENED STEEL FASTENERS: All fasteners are made of hardened steel with heat treated Grade #5 bolts.
  • SUPERIOR BOND: A special Chemlock® bonding agent is used to ensure a superior rubber-to-metal bond.
  • HYDRAULIC MOUNT DESIGN: Hydraulic Mounts (applicable where OE) are designed for most front wheel drive vehicles because transverse drive train mounting.
  • For Years: 1968-2005
  • Weight approx: 3 Lbs
  • PRODUCT: MADE IN THE USA
  • DESIGN: CLAMSHELL
  • PART GROUP: 2292, 2292
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Cloyes Gear – Engine Timing Chain (Part No.C168)

Engine Timing Chain

from

$21.99
A timing chain synchronizes the rotation of the crankshaft and camshaft(s) ensuring proper timing and allows the engine’s valves to open and close during each cylinder’s firing. Available in kits or as a stand-alone product, our chains are pre-stressed and heat-treated for increased durability. Our chains are engineered and manufactured with precision pitch control for proper chain-to-sprocket tooth fitment

Product Features:
  • Recommended that 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
  • Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Engineered and manufactured with precision pitch control for proper chain-to-sprocket tooth fitment
  • CAD designed and manufactured using premium materials
  • Refer to our online catalog for detailed application-specific information
  • High Performance. Pre-Stressed And Heat-Treated For Increased Durability. Precision Cut Plates And Rollers With Smooth Finish. Precision Pitch Control For Proper Chain To Sprocket Tooth Fit.
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Sealed Power – Engine Valve Lifter (Part No.HT-817R)

Engine Valve Lifter

from

$8.49
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:
  • Retro-fit performance
  • High-strength steel retainer (precisely limits plunger travel to perform at high rpm)
  • Eliminates frequent lash adjustments
  • Significant friction reduction substantially increases horsepower and fuel economy
  • Delivers quieter engine operation
  • Application-specific design for perfect fit and correct operation
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Factory Air – O-Ring & Gasket A/C System Seal Kit (Part No.26741)

O-Ring & Gasket A/C System Seal Kit

from

$15.49
High quality OE replacement part with all components needed to complete the job

Product Features:
  • All the seals needed to complete the job
  • Compatible with both R12 and R134a refrigerants
  • Application specific
  • SUV and rear air applications
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Mr. Gasket – Cam Bolt Lock Plate Kit (Part No.948G)

Cam Bolt Lock Plate Kit

from

$18.09
Mr. Gasket cam locking plates feature a steel retainer plate designed to secure the cam gear bolts from coming loose and backing out, preventing costly engine damage. Retainer plate fits under bolt heads allowing tabs to be bent against hex head flats creating a secure positive lock.

Product Features:
  • Black oxide finished steel
  • Includes (3) grade 5 bolts & locking plate
  • Fits Chevrolet Small and Big Block without OE roller cam
  • Tabs bend up around bolt head to secure
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Felpro – Gasket Kit (Part No.260-1000)

Gasket Kit

from

$49.99
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
  • Engineered and manufactured specifically for the repair environment
  • Unsurpassed quality you can trust
  • Includes all parts needed to complete the repair
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Sealed Power – Engine Piston (Part No.WH423DCP 60)

Engine Piston

from

$19.49
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:
  • Hypereutectic
  • Made w/exclusive FM425 material for excellent strength & scuff resistance – allows tighter bore and improves sealing for less blow-by
  • Sophisticated “barrel” profiles help optimize oil wedge between skirt and wall.
  • Piston skirts protected by next-gen DUROSHIELD« coating.
  • TAC┐ ring groove geometry
  • Weight matched to +/- 2 grams.
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Melling – Stock Replacement Oil Pump Screen (Part No.55-S1)

Stock Replacement Oil Pump Screen

from

$24.99
A new Melling pick-up tube/oil screen assembly provides the lubrication oil as well as protection for your oil pump from materials that find their way into the engine oil supply system. Contaminates enter your oil system via engine ware, extended time between oil changes and other internal engine sources. These contaminates can interfere with the proper oil flow and pressure spring functions resulting in engine damage and/or failure. Melling suggests that a new properly installed oil pump pick-up tube/screen be a part of every oil pump installation. Several Melling oil pump applications are offered with an oil screen included.

Product Features:
  • Manufactured from high quality durable materials for long wear
  • Precision engineering protects the engine from dirt and contaminants
  • Designed for long-life and worry-free performance
  • Meets or exceeds original equipment specifications
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Felpro – OIL PAN GASKET SET (Part No.OS 34509 T)

OIL PAN GASKET SET

from

$46.99
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
  • STRONG AND DURABLE — Features molded rubber over a rigid carrier for durability, precise alignment and fit
  • SUPERIOR SEAL — Proprietary molded rubber design helps to eliminate leak paths, especially in problem corner areas
  • EASIER TO INSTALL — One-piece construction is easier to install than multi-piece assemblies and helps reduce potential for installation errors
  • INSTALLATION AID — SnapUps aid in holding the gasket in place for easy installation and allow for quick bolt tightening
  • PREVENTS OVERTIGHTENING — Torque limiters help eliminate overtightening and gasket splitting and extruding
  • EVERY PART FOR THE REPAIR — Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
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National – Shaft Repair Sleeve (Part No.99176)

Shaft Repair Sleeve

from

$46.49
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:
  • Designed to repair damaged, grooved or worn shafts
  • Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
  • Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
  • Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
  • Easy to install with removable flange and installation tool
  • Installation tool reduces sleeve distortion and allows for installation without removal from the shaft
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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
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Spectre – Valve Cover (Part No.5210)

Valve Cover

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$79.99
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 valve cover features chrome-plated steel construction and a smooth design. Sold in pairs, this tall 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
  • Tall profile
  • Features OEM style sealing edge
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ARP Auto Racing – ARP Rocker Arm Stud Kit (Part No.234-7201)

ARP Rocker Arm Stud Kit

from

$99.99
ARP rocker studs are concentric within .005″, extra-large radius base offers greater resistance to flex. Note: To be used ONLY with ARP’s patented Perma-Loc adjusters. Made of 8740 chrome moly forgings and heat-treated to 180,000 PSI. Tip ground flush for optimum adjuster seating.

Product Features:
  • 7/16″-14 Thread Size(s)
  • .700″ Thread Length
  • 8740 Chromoly
  • 1.75″ Effective Stud Length
  • Set of 16
  • .800″ Adjuster Thread Depth
  • 3/8″-24 Shank Diameter and Thread
  • 3/8″ Typical Small Block Application
  • Black Oxide
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Competition Cams – CAMSHAFT, SBC 295 BIG MUTHA THUMPR HYDRAULIC 1 EA (Part No.12-602-4)

CAMSHAFT, SBC 295 BIG MUTHA THUMPR HYDRAULIC 1 EA

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$529.99
Designed to deliver an aggressive, hard-hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a broad torque curve. A perfect choice for muscle cars and street rods, the Thumpr series’ early i

Product Features:
  • Early intake valve opening and long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note.
  • Best with aftermarket converters and more rear gear.
  • Three unique cam designs for each application that deliver excellent horsepower gains and broad torque curve; perfect choice for muscle cars and street rods.
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Sealed Power – Engine Piston Ring Set (Part No.E-251K 10)

Engine Piston Ring Set

from

$64.99
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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Melling – Engine Oil Priming Tool (Part No.PT13)

Engine Oil Priming Tool

from

$71.99
Melling Engine Oil Priming Tools were developed as a way for engine builders to safely pre-prime the engine with oil prior to the initial engine startup. The Priming tool, with the use of a standard drill circulates oil to all of the critical areas of the new engine quickly and safely.

Product Features:
  • Priming tool circulates oil through critical areas of a new engine before engine start up
  • Manufactured from high quality materials for consistent durable wear
  • Precision engineered for optimum fit and function
  • Designed for long-life and worry-free performance
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Popular 1977 GMC G25 Engine Parts Categories

1977 GMC G25 Engine Parts

You count on your 1977 GMC G25 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 420 Engine Parts ranging in price from $0.43 to $5,984.99, you’re sure to find everything you need for your 1977 GMC G25.

Brands matter. If you want to shop a specific Engine Parts brand, we stock 23 different brands like Sealed Power, Felpro, and Melling. 1977 GMC G25 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 4,560 extensive product reviews on 1977 GMC G25 Engine Parts. Some of the top-rated Engine Parts products we carry are Engine Valve Cover Gasket Set with 4.8 stars and Oil Pan Gasket Set: PermaDryPlus Rigid Carrier Includes Bolts & Snap-Ups®, 41 Piece 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 1977 GMC G25 below to get started!

Top-Rated Engine Parts Brands For Your 1977 GMC G25

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 1977 GMC G25 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 1977 GMC G25 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 1977 GMC G25 Engine Parts

What are the most purchased Engine Parts for the 1977 GMC G25?

Out of 420 Engine Parts for the 1977 GMC G25, 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
Engine Cylinder Head Bolt Set
from $31.99
(38)
Engine Cylinder Head Bolt Set
Cylinder Head Bolt Sets

What are the top-rated 1977 GMC G25 Engine Parts?

Top-rated Engine Parts for your 1977 GMC G25 based on customer reviews/ratings are:
Engine Valve Cover Gasket Set
from $25.99
(45)
Engine Valve Cover Gasket Set
“Satisfied”
TIMING COVER GASKET SET
from $19.99
(24)
TIMING COVER GASKET SET
“Good”