1978 GMC K25 Performance Valve Covers
Your 1978 GMC K25 might be the best vehicle you’ve ever owned. Or you may just be struggling to keep it highway-approved. No matter the situation, Advance Auto Parts has the Performance Valve Covers you desperately need.
We currently carry 21 Performance Valve Covers to choose from for your 1978 GMC K25, and our inventory prices range from as little as $56.99 up to $371.99.
On top of low prices, Advance Auto Parts offers 3 different trusted brands of Performance Valve Covers for the 1978 GMC K25. We only sell parts from trusted brands like Edelbrock so that you can find quality parts you can count on.
Don’t take our word for it – check out customer ratings and reviews to buy with confidence. We have 36 reviews on our Performance Valve Covers for the 1978 GMC K25 from previous customers.
Have parts delivered straight to your home, or find the nearest Advance Auto Parts store to check out our Performance Valve Covers stock in-person!
Performance Valve Covers for Your 1978 GMC K25
Edelbrock – Signature Series Valve Covers: Small Block Chevy 262-400 1959-86, Chrome Steel (Part No.4449)
from
$56.99
The Edelbrock #4449 Signature Series Valve Covers are designed for Chevrolet 262-400 ’59-86 applications. Engineered for function and styled for great looks, Signature Series valve covers have stock-style breather baffles that prevent oil passage to the PCV valve. These quality valve covers accept all emissions equipment, including PCV valve holes. Rubber grommets for the breather and PCV valve holes are included. Matching breathers sold separately.
Product Features:
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Product Features:
- Small Block Chevy 262-400 1959-86
- Short
- Chrome Steel
- Set Of Two
- Rubber Grommets For Breather
Edelbrock – VALVE COVERS (Part No.4249)
from
$117.99
Product Features:
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- Polished Finish
- Raised Fins w/Black Mat Background
- Detailed With Allen Hex Heads
- 2 Piece Look; 1 Piece Construction
- Clears Most Roller Rockers
- Clears Valvetrain Components
- Heavy Gauge
Spectre – Valve Cover (Part No.4997)
from
$189.99
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 polished aluminum construction and a ball milled design. Sold in pairs, this stock profile cover includes baffles 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:
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Product Features:
- Designed for 1958-1986 Chevrolet Small Block 265-400 engines
- Baffled for breather system compatibility
- Sold in pairs
- Polished aluminum construction
- Stock height
- Features OEM style sealing edge
Mr. Gasket – Valve Cover (Part No.9800)
from
$59.99
Chrome plated steel valve covers have a flat smooth top. Available for numerous applications.
Product Features:
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Product Features:
- Fits Chevy small block
- OEM height
- Chrome plated steel
Mr. Gasket – VlvCvrSet (Part No.9800BP)
from
$83.99
VlvCvrSet
Spectre – Valve Cover (Part No.5220)
from
$57.99
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 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:
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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
Edelbrock – Classic Series Valve Covers: Small Block Chevy 262-400 1959-86, Aluminum (Part No.4145)
from
$371.99
The Edelbrock #4145 Classic Series Valve Covers are designed for Chevy 262-400 V8 1959-86 applications. Edelbrock first made these aluminum valve covers in the late ’50s and they’re still a classic. They are made of heavy-gauge sand-cast aluminum, Overall height is measured from base to top at the highest point. Edelbrock classic valve covers can be machined to accept breathers if desired.
Product Features:
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Product Features:
- Small Block Chevy 262-400 1959-86
- Tall
- Polished Aluminum
- Set Of Two
Mr. Gasket – VlvCvrSet (Part No.6822G)
from
$282.99
VlvCvrSet
Spectre – Aluminum BBC V/Cover SMOOTH (Part No.5022)
from
$274.99
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 1965-2000 Chevrolet Big Block 396-502 engines, this valve cover features polished aluminum construction and a smooth design. Sold in pairs, this stock profile cover includes baffles 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:
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Product Features:
- Designed for 1965-2000 Chevrolet Big Block 396-502 engines
- Baffled for breather system compatibility
- Sold in pairs
- Polished aluminum construction
- Stock height
- Features OEM style sealing edge
Spectre – Valve Cover (Part No.5011)
from
$264.99
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 1965-2000 Chevrolet Big Block 396-502 engines, this valve cover features polished aluminum construction and a smooth design. Sold in pairs, this tall profile cover includes baffles 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:
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Product Features:
- Designed for 1965-2000 Chevrolet Big Block 396-502
- Baffled for breather system compatibility
- Sold in pairs
- Polished aluminum construction
- Tall profile
- Features OEM style sealing edge
Spectre – Valve Cover (Part No.5000)
from
$199.99
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 polished aluminum construction and a ball milled design. Sold in pairs, this tall profile cover includes baffles 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:
See More
Product Features:
- Designed for 1958-1986 Chevrolet Small Block 265-400 engines
- Baffled for breather system compatibility
- Sold in pairs
- Polished aluminum construction
- Tall profile
- Features OEM style sealing edge
- Holes in cover have an inside diameter of 1.220 inches
Edelbrock – VALVE COVERS (Part No.4280)
from
$189.88
Product Features:
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- Polished Finish
- Raised Fins w/Black Mat Background
- Detailed With Allen Hex Heads
- 2 Piece Look; 1 Piece Construction
- Clears Most Roller Rockers
- Clears Valvetrain Components
- Heavy Gauge
Spectre – Valve Cover (Part No.4996)
from
$179.99
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 polished aluminum construction and a smooth design. Sold in pairs, this stock profile cover includes baffles 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:
See More
Product Features:
- Designed for 1958-1986 Chevrolet Small Block 265-400 engines
- Baffled for breather system compatibility
- Sold in pairs
- Polished aluminum construction
- Stock height
- Features OEM style sealing edge
Spectre – Valve Cover (Part No.4999)
from
$179.99
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 polished aluminum construction and a smooth design. Sold in pairs, this tall profile cover includes baffles 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:
See More
Product Features:
- Designed for 1958-1986 Chevrolet Small Block 265-400 engines
- Baffled for breather system compatibility
- Sold in pairs
- Polished aluminum construction
- Tall profile
- Features OEM style sealing edge
Mr. Gasket – Aluminum Valve Cover (Part No.6850)
from
$179.99
Mr. Gasket’s aluminum valve covers are precision die cast for light weight and a perfect fit. Beautifully polished to a high luster, they are sure to enhance the appearance of any engine compartment. They feature an extended sealing lip to positively locate and secure the gasket and stop it from moving to eliminate oil leaks. Available with plain or ball- milled tops and include a 1 1/4 inch diameter breather hole, except where noted. Packaged two per set.
Product Features:
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Product Features:
- .0125 in. thick
- Lightweight
- Precision die cast
- Extended sealing lip
- Stops gasket from moving
- A perfect fit
- Beautifully polished to a high luster
Mr. Gasket – Aluminum Valve Cover (Part No.6854)
from
$159.99
Mr. Gasket’s aluminum valve covers are precision die cast for light weight and a perfect fit. Beautifully polished to a high luster, they are sure to enhance the appearance of any engine compartment. They feature an extended sealing lip to positively locate and secure the gasket and stop it from moving to eliminate oil leaks. Available with plain or ball- milled tops and include a 1 1/4 inch diameter breather hole, except where noted. Packaged two per set.
Product Features:
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Product Features:
- 0.125 in. Thick
- Lightweight
- Precision Die Cast
- Extended Sealing Lip
- Stops Gasket From Moving
- A Perfect Fit
- Beautifully Polished To A High Luster
Edelbrock – Signature Series Valve Covers: Big Block Chevy 396-502 1965 &Up, Chrome Steel (Part No.4680)
from
$83.99
The Edelbrock #4680 Signature Series Valve Covers are designed for Chevrolet 396-502 V8 ’65 & later applications. Engineered for function and styled for great looks, Signature Series valve covers have stock-style breather baffles that prevent oil passage to the PCV valve. These quality valve covers accept all emissions equipment, including PCV valve holes. Rubber grommets for the breather and PCV valve holes are included. Matching breathers sold separately.
Product Features:
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Product Features:
- Big Block Chevy 396-502 1965 & Up
- Tall
- Chrome Steel
- Set Of Two
- Rubber Grommets For Breather
Edelbrock – Signature Series Valve Covers: Big Block Chevy 396-502 1965 & Up, Chrome Steel (Part No.4480)
from
$78.99
The Edelbrock #4480 Signature Series Valve Covers are designed for Chevrolet 396-502 V8 ’65 & later applications. Engineered for function and styled for great looks, Signature Series valve covers have stock-style breather baffles that prevent oil passage to the PCV valve. These quality valve covers accept all emissions equipment, including PCV valve holes. Rubber grommets for the breather and PCV valve holes are included. Matching breathers sold separately.
Product Features:
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Product Features:
- Big Block Chevy 396-502 1965 & Up
- Short
- Chrome Steel
- Set Of Two
- Rubber Grommets For Breather
Spectre – Valve Cover (Part No.4992)
from
$74.99
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 gold iridite construction and a smooth design. This tall profile cover is sold in pairs. 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:
See More
Product Features:
- Designed for 1958-1986 Chevrolet Small Block 265-400 engines
- Sold in pairs
- Gold iridite construction
- Tall profile
- Features OEM style sealing edge
Spectre – Valve Cover (Part No.5230)
from
$74.99
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 1965-2000 Chevrolet Big Block 396-502 engines, this valve cover features triple chrome plated steel construction and a smooth design. Sold in pairs, this tall profile cover includes baffles 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:
See More
Product Features:
- Designed for 1965-2000 Chevrolet Big Block 396-502 engines
- Baffled for breather system compatibility
- Sold in pairs
- Triple chrome-plated steel construction
- Tall profile
- Features OEM style sealing edge
Spectre – Valve Cover (Part No.5240)
from
$69.99
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 1965-2000 Chevrolet Big Block 396-502 engines, this valve cover features triple chrome plated steel construction and a smooth design. Sold in pairs, this stock profile cover includes baffles 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:
See More
Product Features:
- Designed for 1965-2000 Chevrolet Big Block 396-502 engines
- Baffled for breather system compatibility
- Sold in pairs
- Triple chrome-plated steel construction
- Stock height
- Features OEM style sealing edge
FAQs for 1978 GMC K25 Performance Valve Covers
What are the most popular Performance Valve Covers for the 1978 GMC K25?
With 3 brands you can trust, our most popular Performance Valve Covers for the 1978 GMC K25 parts are:
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$56.99
(7)
Signature Series Valve Covers: Small Block Chevy 262-400 1959-86, Chrome Steel
Performance Valve Covers
What are the best aftermarket Performance Valve Covers for the 1978 GMC K25?
See what past customers had to say about our highest-rated Performance Valve Covers for the 1978 GMC K25:
