SKU: 2539632162

Holley LS Valley Cover with Oil Fill - Natural Billet - 241-367

Sale price$130.92 Regular price$145.47
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Description

Holley LS Valley Cover with Oil Fill - Natural Billet - 241-367Overview: Holley's LS valley covers with oil fill provisions are the latest addition to our expansive lineup of LS engine dress up products. Machined from billet aluminum and featuring a modern, trussed design with an integrated oil fill neck and billet oil fill cap, these LS valley covers are the perfect upgrade for your LS engine if you are looking for a subtly custom touch. These valley covers are machined smooth on the underside, allowing for the

Overview:

Holley's LS valley covers with oil fill provisions are the latest addition to our expansive lineup of LS engine dress up products. Machined from billet aluminum and featuring a modern, trussed design with an integrated oil fill neck and billet oil fill cap, these LS valley covers are the perfect upgrade for your LS engine if you are looking for a subtly custom touch. These valley covers are machined smooth on the underside, allowing for the elimination of Displacement-On-Demand (DOD), and instead features an ample gasket sealing surface and provisions for re-installing the oil pressure sensor if necessary. Each valley cover is custom machined for either LS1/LS6 (10 bolt) or LS2/LS3/LS7/LSX (11 bolt) patterns and Holley / Mr. Gasket offers all the necessary gaskets and upgraded hardware options to complete your installation. The new LS valley covers with oil fill provisions are available in three unique finishes: natural billet (clear anodized for protection), polished billet, and black anodized billet.

Features:

  • Precision manufactured from billet aluminum with a modern, race inspired, trussed design
  • Available for GM LS1/LS6 (10 bolt) and LS2/LS3/LS7/LSX (11 bolt) engine applications
  • Features integrated oil fill neck with included billet aluminum oil fill cap (Holley P/N 241-225)
  • Smooth underside allows for elimination of Displacement-On-Demand (DOD)* and offers ample gasket sealing surface
  • All necessary gaskets and upgraded mounting hardware sold separately
  • Available in three unique finishes: natural billet (clear anodized for protection), polished billet, and black anodized billet

Application:

Year Make Model Submodel Engine Size
1997 - 2004 Chevrolet Corvette
1998 - 2002 Chevrolet Camaro 350/5.7L V8
1998 - 2002 Pontiac Firebird 350/5.7L V8
2001 - 2004 Avanti II
2004 - 2005 Cadillac CTS 346/5.7L V8
2004 Pontiac GTO

Specs:

Application LS1/LS6
Baffle Included No
Bolt Pattern 11
Brand Holley
Emission Code 4
Finish Natural
Gaskets Included No
Logo Trussed, No Logo
Material Billet Aluminum
Mounting Hardware Included No
Oil Fill Cap Included Yes
Product Type Valley Covers
Style Trussed
Warning California Proposition 65
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: 2539632162

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Based on 275 reviews
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Clint
Omaha, US
★★★★★ 5
Great socks!
Size: Large, Color: (001) Black / Black / White
These fit true to size. Good socks.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 23, 2026
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PETER CROWE
Draper, US
★★★★★ 5
Great for walking all day at work as well
Size: X-Large, Color: (001) Black / Black / White
I walk approximately 10 miles a day at work, in a manufacturing setting. On concrete with steel toe shoes. My feet have been begging me to change from the socks that I have worn for years. I have worn these other name brand socks for probably 10 years. So, change was obviously something I had to be pushed into. I got on Amazon and searched for training socks. I read the description. Glanced at the reviews. I decided to move forward with purchasing these. I could not have been happier. My feet began feeling better immediately. And the priced was very reasonible.
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Reviewed in the United States on April 12, 2026
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jcolis
Phoenix, US
★★★★★ 5
You have one pair of feet. Treat them kindly with a pair of UA socks
Size: Large, Color: (100) White / White / Black
Soft and tough. Easy on the feet. Nice fit prevents sore spots and blisters.
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Reviewed in the United States on December 3, 2025
G
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Glass
Battle Creek, US
★★★★★ 5
I stay on your foot they don’t slip in your shoe
Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium
This is the only socks I wear Under Armour because they stay in place I wear a size 8, but they’re more comfortable with a large instead of a medium, but I wear both because I have them already and you can pull them to stretch them out a little bit
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Reviewed in the United States on May 12, 2026
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Lauren
Lowell, US
★★★★★ 5
Great fit, truly doesn’t slide off heel
Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium, Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium
I’ve scoured all the lands looking for a no-show sock that was 1) thin, 2) quality, soft, breathable material, 3) didn’t dig into my feet/heels, 4) doesn’t shrink, and most importantly 5) stays on the back of my heel without a bulky non-slip rubber piece and these check all the boxes! Perfect for low profile women’s work shoes like Keds, etc. Not low enough for most flats though. I wear a women’s size 9.
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Reviewed in the United States on April 19, 2025

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