SKU: 19406619616

GM Muscle Series Center Bolt Valve Covers Satin Black Machined Finish - 241-292

Sale price$202.47 Regular price$224.97
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Ships within 48 hours · Estimated delivery Jul 20 - Jul 25

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Description

GM Muscle Series Center Bolt Valve Covers Satin Black Machined Finish - 241-292Overview: Holley's new GM Muscle Series accessories are the latest expansion to our officially licensed GM product line. These die cast aluminum valve covers and air cleaner kits were designed to have a no frills, modern style with prominent raised GM "Chevrolet and Bowtie" logos. Intended as an alternative to the existing GM ZZ6 accessories, Holley's GM Muscle Series dress up accessories can be the perfect addition to your engine bay if you are

Overview:

Holley's new GM Muscle Series accessories are the latest expansion to our officially licensed GM product line. These die-cast aluminum valve covers and air cleaner kits were designed to have a no-frills, modern style with prominent raised GM "Chevrolet and Bowtie" logos. Intended as an alternative to the existing GM ZZ6 accessories, Holley's GM Muscle Series dress up accessories can be the perfect addition to your engine bay if you are searching for a subtly custom variation from the OEM options. All GM Muscle Series accessories are available in four custom finishes: natural cast, polished, satin black, and factory orange (all finishes have machined "Chevrolet and Bowtie" logos aside from polished version). The Small Block Chevy center bolt valve covers (designed to fit Vortec/ZZ4/ZZ5/ZZ6) feature a generous internal height for exceptional valve train clearance and include pre-installed internal baffling, polished mounting hardware, and oil fill / PCV grommets (valve cover gaskets not included).

Features:

  • Features 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 (Vortec, ZZ4, ZZ5, ZZ6) – polished mounting hardware included
  • Die-cast 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
  • Offered in four unique finishes to fit your style: natural cast aluminum with machined logo (ready for custom paint), polished, satin black with machined logo, and factory orange with machined logo

Application:

Year Make Model Submodel Engine Size
Universal

Specs:

Application GM SBC ZZ6/Vortec
Baffle Included Yes
Bolt Pattern Center Bolt
Brand Holley
Breather(s) Included No
Emission Code 3
Finish Satin Black Machined
Gaskets Included No
Gromment(s) Included Yes
Hardware Included Yes
Height Standard
Logo Chevrolet with Bowtie
Material Cast Aluminum
Mounting Hardware Included Yes
Product Type Valve Cover
Style SBC Center Bolt
Warranty Limited 90 Day
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 19406619616

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4.7 ★★★★★
Based on 19 reviews
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E
Verified Purchase
Esther T
Pawtucket, US
★★★★★ 4
DOGS LIKE IT
Flavor Name: Peanut Butter, Size: Large
DOGS LIKE IT
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2026
J
Verified Purchase
Jami Lynn
Bozeman, US
★★★★★ 5
A hardy chew toy
Flavor Name: Peanut Butter, Size: Medium, Flavor Name: Peanut Butter, Size: Medium
My dog loves these! I have purchased several. The size is perfect for my 25-pound cockapoo. It’s durable and she chews them for months until they’re prickly and not as fun anymore. The price is reasonable enough and she loves them so well (they’re one of the two chew toys that she likes), so I feel like the cost is worth it. One thing to note is that my dog does chew off tiny bits from the bone. She usually spits them out but has swallowed some bits here and there. There hasn’t been a situation with the swallowed pieces, but I always monitor her as she uses it and would suggest that for other pet owners also. Safety is always key, but we have never had any problems in the two years I’ve been buying them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 2, 2025
C
Verified Purchase
Chuck
Battle Creek, US
★★★★★ 5
Golden approves
Flavor Name: Peanut Butter, Size: Medium
Golden approves. Good size. Durability is hard, she did end up chewing the heck out of it. Great for puppies.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2025
R
Verified Purchase
Randa
Lexington, US
★★★★★ 1
Don't recommend for any type of chewers
Flavor Name: Peanut Butter, Size: Medium
Same product, don't recommend due to slicing of material. My pup is a chewer and he was a 4mo old Chug at the time. Not worth my worrying about him swallowing plastic
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
G
Verified Purchase
Gypsy
Natrona Heights, US
★★★★★ 5
Jack Russell approved
Flavor Name: Peanut Butter, Size: Medium
My 12 pounder loves these!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026

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