SKU: 38671112990

GM Muscle Series Center Bolt Valve Covers - 241-290

Sale price$179.97 Regular price$199.97
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Ships within 48 hours · Estimated delivery Jul 14 - Jul 19

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Description

GM Muscle Series Center Bolt Valve Covers - 241-290Overview: 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 Natural
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: 38671112990

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Daniel S
Louisville, US
★★★★★ 5
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Reviewed in the United States on February 27, 2026
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Erik C
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★★★★★ 5
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Reviewed in the United States on March 15, 2026
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JandJ
Boise, US
★★★★★ 5
Comfortable Lightweight Flip Flops with Reliable Grip
Size: 9, Color: Black/Geyser, Size: 9, Color: Black/Geyser
These flip flops have an excellent fit with a cushioned footbed that makes them very comfortable to wear for long periods. The grip is strong on wet surfaces, which adds confidence when walking around pools, beaches, or after rain. The overall quality feels top tier, and the color looks clean and well finished. They are lightweight, and the sizing was spot on, making them easy to slip on and wear throughout the day.
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Reviewed in the United States on March 11, 2026
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Sean Bozarth
Lexington, US
★★★★★ 5
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Size: 8, Color: Black/Geyser
I picked these up mainly for casual wear and beach days, and they’ve honestly been a great grab. They were comfortable right out of the box, which isn’t always the case with flip flops. The footbed has a little bit of cushion without feeling overly soft or flimsy. They feel supportive enough for running quick errands but still light and easy to slide on. The fit was true to size for me. They’re maybe slightly roomy in the toe area, but not in a way that bothers me. The straps don’t rub or dig in, which is usually my biggest concern with sandals like this. They also seem well made. The material feels durable and not cheap, and they have that simple Columbia look that works with shorts or just something casual around the house. Overall, solid pair of flips. Nothing flashy, just comfortable and reliable. I’d definitely buy them again.
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