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Description
Holley GM Muscle Series Center Bolt Valve Covers Black Finish # HO241-292Holley GM Muscle Series Center Bolt Valve Covers Black Finish # HO241 292 Valve Covers, Muscle Series Centerbolt, Chevrolet Logo, Cast Aluminum, Black Satin Painted, Baffled, 3. 22 in. Tall, Chevy, 5. 0L, 5. 7L, Pair Valve Cover Mounting Style: Centerbolt Valve Cover Height: Stock Valve Cover Top Style: Chevrolet logo Valve Cover Material: Cast aluminum Color: Black Coating Type: Powdercoated Finish: Satin Baffled: Yes Breathers Included: No Gaskets
Holley GM Muscle Series Center Bolt Valve Covers Black Finish # HO241-292Valve Covers, Muscle Series Centerbolt, Chevrolet Logo, Cast Aluminum, Black Satin Painted, Baffled, 3.22 in. Tall, Chevy, 5.0L, 5.7L, Pair
Valve Cover Mounting Style:
Centerbolt
Valve Cover Height:
Stock
Valve Cover Top Style:
Chevrolet logo
Valve Cover Material:
Cast aluminum
Color:
Black
Coating Type:
Powdercoated
Finish:
Satin
Baffled:
Yes
Breathers Included:
No
Gaskets Included:
No
Grommets Included:
Yes
Mounting Hardware Included:
Yes
Quantity:
Sold as a pair.
Notes:
Valve covers are 3.22 in. tall. Do not torque valve cover more than 5-6 ft/lbs.
Holley Muscle Series Centerbolt Valve Covers
Holley Muscle Series centerbolt valve covers present a no-frills, modern style with prominent raised GM "Chevrolet and Bowtie" logos. Intended as an alternative to the existing GM ZZ6 accessories, a Holley GM Muscle Series cover is the perfect addition to your engine bay if you're searching for a subtle custom variation from the OEM options. They feature a generous internal height for exceptional valve train clearance, and include pre-installed internal baffling, polished mounting hardware, and oil fill/PCV grommets.Holley Muscle Series centerbolt valve covers feature: Clean, modern styling with high-definition "Chevrolet and Bowtie" logo Specifically designed for GM ZZ6 engines, but will fit all small block Chevy applications with center bolt-style cylinder heads Diecast aluminum construction ensures high detail and reduces the opportunity for warping of the valve cover flange and oil leaks Emissions-compliant valve covers include pre-installed internal oil baffles, as well as an oil fill plug and PCV grommet
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 26 reviews
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Product Reviews
★★★★★ 5
Good value
Size: 5 Quart Jug
Very good fluid, worked great in a 2016 Honda Civic 2.0.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 5, 2026
★★★★★ 5
Exceeds performance expectations of OEM fluids
Size: 5 Quart Jug
You know I didn't think it would work as well I've heard all these horror stories but you know what this works better than the factory CVT fluid this stuff is great this is amazing be very careful to get your levels correct that goes without saying with any transmission but once you do that this fluid is amazing I have a better performance than when I had the new transmission I serve my CvT 35 to 40,000 miles I'm using it in a 2018 Mitsubishi outlander base model and I'm also running Yokohama geolander 015s on it. If you worry about tires for you Mitsubishi or any vehicle. I'm going to say you'll call when you lander whether it's a car or crossover or an SUV this tire is amazing it's best all around tire and your rain traction is phenomenal
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Reviewed in the United States on February 9, 2026
★★★★★ 5
Good Stuff!! All low speed shudder is gone.
Size: 5 Quart Jug
I have a 2020 Nissan Altima SL 2.5l and Nissan is VERY specific about using ONLY NS3 transmission fluid. There are only a couple NS3 transmission fluid manufacturers...Nissan NS3 (Manufactured by Idemitsu), Idemitsu (a little cheaper than Nissan dealer), Triax, and Mannol (works good too).
Seeing as Nissan is still using Jatco CVT transmissions which are known to be very troublesome, and very expensive to replace I wouldn't try any of the so-called "universal" transmission fluids just to save $50 and end up replacing a $6000 transmission.
The Triax fluid seems to work very good in my car. I don't feel the shutter that I normally feel when driving slow and need to accelerate. The shudder is completely gone and operating smooth.
The old fluid had 50k miles and it was very dirty but didn't smell burnt.
I ended up doing 2 - 3 1/2 quart changes with 200 miles between the first and second change.
I plan on doing another 3.5/4 quart change every 15k miles since there is no way to completely drain the 7.4 quarts of transmission fluid. The first change, only 3.5 quarts drained from the pan.
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Reviewed in the United States on September 19, 2025
★★★★★ 5
Quality fluid for half cost in Mini CVT.
Size: 5 Quart Jug
Used in the cvt transmission in my 06 mini cooper. The fluid requirements recommended by BMW are met with this fluid. Fluid improved shifting and performance at half the cost of traditional BMW OEM fluid.
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Reviewed in the United States on May 18, 2026
★★★★★ 5
This CVT Fluid worked perfectly in a 2018 Chevrolet Spark.
Size: 5 Quart Jug
This fluid is fantastic. I bought a 2018 Chevrolet Spark with 30K miles and had a bad transmission shudder. Drained the transmission, cleaned-out the pan, and replaced the filters. Old fluid was black and this is a clear green. I loved the jug as it had a pop-up spout that was small and easy to pour, and the jug has a side handle. Transmission works great and the shudder is gone. I plan to change the filters and fluid again after 1K miles. This fluid is well worth the money!
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Reviewed in the United States on October 21, 2025
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