GMC K25 Valve Cover and Cylinder Heads

Your One-Stop Shop For Trusted GMC K25 Valve Cover and Cylinder Heads

If you’re in search of GMC K25 Valve Cover and Cylinder Heads aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 99 Valve Cover and Cylinder Heads from top brands with prices ranging from $0.30 to $1,279.99.

Beyond great prices, we stock trusted brands manufacturing all types of Valve Cover and Cylinder Heads for your GMC K25. Of the 8 OEM and aftermarket parts brands we carry, some of the most popular are Sealed Power, Felpro, and Mr. Gasket.

And don’t forget to read customer reviews across all Valve Cover and Cylinder Heads categories in our catalog. Buy with confidence by leveraging past customer experiences of our aftermarket and OEM parts.

At Advance Auto Parts, we don’t think top quality Valve Cover and Cylinder Heads have to cost top dollar, and we prove it. Browse our top GMC K25 Valve Cover and Cylinder Heads below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

Essential GMC K25 Valve Cover and Cylinder Heads

Mr. Gasket – MLS Head Gasket (Part No.3130G)

MLS Head Gasket

from

$99.99
Manufactured from nitrile coated spring steel layers. Stress formed embossment provides excellent sealing. Also provides stability and reduces cylinder bore distortion. Ideal for super charged, turbo charged, nitrous oxide and extreme compression ratios. For high performance street, drag race and oval track. Packaged individually.

Product Features:
  • They have a compressed thickness of .040 in.
  • They fit small block Chevy from 1955-91
  • Available in different bore sizes
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ARP Auto Racing – Hex Style Head, 1.8L Lb Per Square" Tensile Strength, Black Oxide, Chrome Moly (Part No.135-3601)

Hex Style Head, 1.8L Lb Per Square" Tensile Strength, Black Oxide, Chrome Moly

from

$111.99
High Performance head bolts are available with a reduced wrenching hex or 12 point and wide area flanged head that eliminates the need for valve train removal to facilitate cylinder head retorquing. All High Performance Series bolts are 180,000 PSI (which is 15 Percent stronger than Grade 8) and kits come complete with hardened parallel ground washers.

Product Features:
  • High Performance Head Bolts Are Available With A Reduced Wrenching Hex Or 12 Point
  • Wide Area Flanged Head That Eliminates The Need For Valve Train Removal To Facilitate Cylinder Head Retorquing
  • Rated At 180,000 PSI Tensile Strength
  • High Performance Head Bolts Are Stronger
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Sealed Power – Engine Valve Spring Retainer Keeper (Part No.VK-138)

Engine Valve Spring Retainer Keeper

from

$0.30
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:
  • Unsurpassed quality that you can trust
  • Uses leading edge materials
  • State-of-the-art manufacturing
  • Exacting tolerances
  • Meets or exceeds OEM specifications
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Dorman – Rocker Arm Stud, Type 3, 3/8-24 x 2-1/2 In. (.003 In. Oversize), Gm (sold by each) (Part No.693-005)

Rocker Arm Stud, Type 3, 3/8-24 x 2-1/2 In. (.003 In. Oversize), Gm (sold by each)

from

$2.99
Our Engine Rocker Arm Bolts are manufactured with a high corrosion resistance for an extended service life. Long-lasting durability is ensured.

Product Features:
  • Rocker Arm Stud, Type 3, 3/8-24 x 2-1/2 In. (.003 In. Oversize), Gm
  • Rocker Arm Stud, Type 3, 3/8-24 x 2-1/2 In. (.003 In. Oversize), Gm (sold by each)
  • Our Engine Rocker Arm Bolts are manufactured with a high corrosion resistance for an extended service life. Long-lasting durability is ensured.
  • High-quality steel construction
  • Resistant to rust
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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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Sealed Power – Engine Rocker Arm Ball (Part No.MR-1783)

Engine Rocker Arm Ball

from

$0.65
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.
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Felpro – Cylinder Head Gasket Set (Part No.HS 8364 PT-3)

Cylinder Head Gasket Set

from

$68.99
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:
  • Head sets contain gaskets and seals necessary for a valve grind or head reconditioning job
  • Application specific design to ensure a perfect fit and premium seal
  • Premium quality parts you can trust
  • Engineered and manufactured specifically for the repair environment
  • Unsurpassed quality you can trust
  • Contains all the parts needed to complete the repair unless otherwise noted
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Spectre – Valve Cover (Part No.5258)

Valve Cover

from

$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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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)

from

$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 – Cylinder Head Dowel Pins (Part No.4377)

Cylinder Head Dowel Pins

from

$16.99
These hard to find dowel pins are precision machined then case hardened for accurate alignment in engine assembly. 2 per set.

Product Features:
  • Precision machined
  • Case hardened
  • Give accurate alignment
  • 2 per set
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Felpro – CYLINDER HEAD GASKET SPACER SHIM (Part No.8180 SP-1)

CYLINDER HEAD GASKET SPACER SHIM

from

$30.99
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
  • Premium quality parts
  • Engineered and manufactured specifically for the repair environment
  • Unsurpassed quality you can trust
  • Contains all the parts needed to complete the repair unless otherwise noted
  • Contains all the parts needed 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

from

$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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Edelbrock – Performer Series Retainer (Qty 16) (Part No.9730)

Performer Series Retainer (Qty 16)

from

$99.99
Product Features:
  • Use W/ Valve Springs Part #5703, 5794
  • Set of 16
  • 1.50 in. Outside Diameter
  • Steel Material
  • Black Oxide Finish
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Edelbrock – Performer-Plus Hydraulic Flat Tappet Lifters (Part No.9738)

Performer-Plus Hydraulic Flat Tappet Lifters

from

$127.99
Product Features:
  • Replacement Lifters For Performer Cam
  • 50 State Legal
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Sealed Power – Engine Rocker Arm Nut (Part No.MR-1751)

Engine Rocker Arm Nut

from

$0.95
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.
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(4 reviews)
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Mr. Gasket – Chrome Valve Cover Wing Bolts (Part No.9824)

Chrome Valve Cover Wing Bolts

from

$15.99
Chrome-plated for beauty and durability, wing bolts make valve cover removal fast and easy. They are precision-engineered and feature extra-long threads to accommodate Mr. Gasket’s re-usable valve cover gasket and custom valve covers.

Product Features:
  • Fits Chevy V8
  • Standard Y top 1/4 in.-20 x 5/8 in.
  • Chrome plated steel
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(9 reviews)
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Sealed Power – Engine Rocker Arm Kit (Part No.R-851)

Engine Rocker Arm Kit

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:
  • Complete rocker arm assembly
  • 1 Arm
  • 1 Ball
  • 1 Nut
  • Utilizes ISO & QS certified manufacturing
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Spartan – Engine Cylinder Head; Chev 400 79-80 Cyl Head (Part No.2C21)

Engine Cylinder Head; Chev 400 79-80 Cyl Head

from

$376.99
Remanufactured Cylinder Heads are complete rebuild & include new valve stem seals, soft plugs & verified camshafts. All threads are checked and repaired if necessary. Cylinder Heads are packaged in heavy plastic to protect the unit.

Product Features:
  • All cylinder heads are both vacuum and pressure tested to verify valve seating, & integrity of water passages.
  • All cylinder heads are packaged in environmentally safe and recyclable containers that are the perfect size for returning your original core
  • All threads and machined surfaces are and repaired with technology that exceeds the original metal
  • Non-sealing iron surfaces painted to prevent oxidization
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Edelbrock – VALVE COVER TAB (Part No.4426)

VALVE COVER TAB

from

$10.99
The Edelbrock #4426 valve cover hold-down kits may be used on all Edelbrock and similar design chrome valve covers, our Elite Series and Elite II valve covers, our Classic Series valve covers and our Victor Series valve covers.

Product Features:
  • 5 in Length
  • Steel Material
  • For Small-Block Chevy
  • Chrome Finish
  • Set of 4
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Sealed Power – Push Rod (Part No.RP-3212R)

Push Rod

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:
  • Professional racing rods
  • 1-Piece forged end rods
  • Hardened for guide plate compatibility
  • Centerless ground to guarantee concentricity
  • Black oxide coated for corrosion protection
  • Part numbers are laser etched on each pushrod for positive ID
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Sealed Power – Push Rod (Part No.RP-3212R 100)

Push Rod

from

$9.49
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:
  • Professional racing rods
  • 1-Piece forged end rods
  • Hardened for guide plate compatibility
  • Centerless ground to guarantee concentricity
  • Black oxide coated for corrosion protection
  • Part numbers are laser etched on each pushrod for positive ID
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Edelbrock – Valve Seat for S/B Chevy heads with 1.60" Valves (Part No.9710)

Valve Seat for S/B Chevy heads with 1.60" Valves

from

$18.99
Product Features:
  • Valve Seats
  • Performer Series
  • 50-State Street Legal
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Edelbrock – Sure Seat Valve Springs for Cylinder Heads (Part No.5823)

Sure Seat Valve Springs for Cylinder Heads

from

$152.99
Springs made of highest quality spring wire. Springs precision wound to close tolerances. Non-Rotator style: Dyno tested and street proven. Great match to Edelbrock camshaft kit.

Product Features:
  • For Use With Cast Iron Heads
  • Springs Made of Highest Quality Spring Wire
  • Springs Precision Wound To Close Tolerances
  • Use with Original Equipment Heads Only
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Edelbrock – Sure Seat Valve Springs for S/B Chevy O.E Cast iron Cylinder Heads (Part No.5703)

Sure Seat Valve Springs for S/B Chevy O.E Cast iron Cylinder Heads

from

$65.99
Springs made of highest quality spring wire. Springs precision wound to close tolerances. Non-Rotator style: Dyno tested and street proven. Great match to Edelbrock camshaft kit.

Product Features:
  • For Use With Cast Iron Heads
  • Springs Made of Highest Quality Spring Wire
  • Springs Precision Wound To Close Tolerances
  • Use with Original Equipment Heads Only
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Sealed Power – Engine Valve Spring (Part No.VS-677)

Engine Valve Spring

from

$2.49
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:
  • Unsurpassed quality that you can trust
  • Uses leading edge materials
  • State-of-the-art manufacturing
  • Exacting tolerances
  • Meets or exceeds OEM specifications
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(1 reviews)
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GMC K25 Valve Cover and Cylinder Heads List

Valve Covers
Valve Covers
Engine Valve Lifters
Engine Valve Lifters
Cylinder Head Bolt Sets
Cylinder Head Bolt Sets
Cylinder Head Gasket Sets
Cylinder Head Gasket Sets
Cylinder Head Gaskets
Cylinder Head Gaskets
Valve Cover Bolts
Valve Cover Bolts
Valve Cover Load Spreaders
Valve Cover Load Spreaders
Rocker Arms
Rocker Arms
Push Rods
Push Rods
Engine Valve Springs
Engine Valve Springs
Engine Valves
Engine Valves
Rocker Arm Nuts
Rocker Arm Nuts
Cylinder Head Gasket Spacer Shims
Cylinder Head Gasket Spacer Shims
Rocker Arm Bolts
Rocker Arm Bolts
Cylinder Head Alignment Dowel Pins
Cylinder Head Alignment Dowel Pins
Engine Cylinder Head Plugs
Engine Cylinder Head Plugs
Engine Valve Locks
Engine Valve Locks
Engine Rocker Arm Balls
Engine Rocker Arm Balls
Engine Valve Seats
Engine Valve Seats
Cylinder Heads
Cylinder Heads
Engine Cylinder Head Nuts
Engine Cylinder Head Nuts
Engine Valve Spring Seat
Engine Valve Spring Seat

Valve Cover and Cylinder Heads Brands You Can Trust For Your GMC K25

8 trusted brands of Valve Cover and Cylinder Heads line our shelves, ready to help keep your GMC K25 running smooth. Below are some of the most popular brands and their top Valve Cover and Cylinder Heads offerings:

Popular Edelbrock Valve Cover and Cylinder Heads

Edelbrock products for the GMC K25 span several categories. Some of the highest-rated Edelbrock Valve Cover and Cylinder Heads that will fit your GMC K25 are:
Signature Series Valve Covers: Small Block Chevy 262-400 1959-86, Black Steel
from $56.99
(4)
Signature Series Valve Covers: Small Block Chevy 262-400 1959-86, Black Steel
Valve Covers
RPM Big-Block Chevy Oval Port Cylinder Head Hydraulic Roller Cam
from $1223.99
(2)
RPM Big-Block Chevy Oval Port Cylinder Head Hydraulic Roller Cam
Cylinder Heads
RPM Small-Block Chevy Cylinder Head SBC 70cc Hydraulic Flat Tappet Cam
from $990.99
(1)
RPM Small-Block Chevy Cylinder Head SBC 70cc Hydraulic Flat Tappet Cam
Cylinder Heads

Most Purchased GMC K25 Valve Cover and Cylinder Heads from Felpro

When you buy the most frequently purchased Felpro brand Valve Cover and Cylinder Heads, you can be confident it will be the right part for your GMC K25. Here are the Felpro Valve Cover and Cylinder Heads Advanced Auto customers buy the most:
Engine Cylinder Head Bolt Set
from $31.99
(38)
Engine Cylinder Head Bolt Set
Cylinder Head Bolt Sets
Engine Valve Lifter
from $13.99
(15)
Engine Valve Lifter
Engine Valve Lifters
Cylinder Head Gasket: Composite, Without Head Bolts
from $34.99
(12)
Cylinder Head Gasket: Composite, Without Head Bolts
Cylinder Head Gaskets

FAQs for GMC K25 Valve Cover and Cylinder Heads

What are the most purchased Valve Cover and Cylinder Heads for the GMC K25?

Out of 99 Valve Cover and Cylinder Heads for the GMC K25, 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 Rocker Arm Nut
from $0.95
(4)
Engine Rocker Arm Nut
Rocker Arm Nuts

What are the top-rated GMC K25 Valve Cover and Cylinder Heads?

Top-rated Valve Cover and Cylinder Heads for your GMC K25 based on customer reviews/ratings are:
Chrome Valve Cover Wing Bolts
from $15.99
(9)
Chrome Valve Cover Wing Bolts
“good”
Engine Rocker Arm Kit
from $3.49
(6)
Engine Rocker Arm Kit
“The rocker was what i needed and was hard to find. You guys helped out well and were right in the neighborhood thanks”
CYLINDER HEAD BOLT SET
from $47.99
(4)
CYLINDER HEAD BOLT SET
“A”