HOL-241-367 Holley LS Valley Cover with Oil Fill – Natural Billet
For GM LS1/LS6 Applications, Trussed Design
Features
- All necessary gaskets and upgraded mounting hardware sold separately
- 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
- Available in three unique finishes: natural billet (clear anodized for protection), polished billet, and black anodized billet
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.
Attributes:
| Brand | Holley |
| Application | LS1/LS6 |
| Baffle Included | No |
| Bolt Pattern | 11 |
| Category | Engine |
| Configuration | One Piece |
| Emission Code | 4 |
| Finish | Natural |
| Gaskets Included | No |
| Grade Type | Performance |
| Logo | Trussed, No Logo |
| Material | Billet Aluminum |
| Mounting Hardware Included | No |
| Mounting Hole Quantity | 10 |
| Oil Fill Cap Included | Yes |
| part type | Valley Pan Cover |
| Product Type | Valley Covers |
| Style | Trussed |
| Sub Category | Gaskets and Sealing Systems |
| Warranty | Manufacturer’s Limited 90 Day Warranty |
Vehicle Applications:
| Make | Model | Years |
| Buick | Rainier | 2004 to 2007 |
| Cadillac | CTS | 2004 to 2006 |
| Cadillac | Escalade ESV | 2003 to 2006 |
| Cadillac | Escalade EXT | 2002 to 2006 |
| Cadillac | Escalade | 2002 to 2006 |
| Chevrolet | Avalanche 1500 | 2002 to 2006 |
| Chevrolet | Avalanche | 2007 to 2007 |
| Chevrolet | Camaro | 1998 to 2002 |
| Chevrolet | Corvette | 1997 to 2006 |
| Chevrolet | Express 1500 | 2003 to 2007 |
| Chevrolet | Express 2500 | 2003 to 2007 |
| Chevrolet | Express 3500 | 2003 to 2007 |
| Chevrolet | Impala | 2006 to 2009 |
| Chevrolet | Monte Carlo | 2006 to 2007 |
| Chevrolet | SSR | 2003 to 2006 |
| Chevrolet | Silverado 1500 Classic | 2007 to 2007 |
| Chevrolet | Silverado 1500 HD Classic | 2007 to 2007 |
| Chevrolet | Silverado 1500 | 1999 to 2007 |
| Chevrolet | Silverado 2500 HD Classic | 2007 to 2007 |
| Chevrolet | Silverado 2500 HD | 2001 to 2007 |
| Chevrolet | Silverado 2500 | 1999 to 2005 |
| Chevrolet | Silverado 3500 Classic | 2007 to 2007 |
| Chevrolet | Silverado 3500 HD | 2007 to 2007 |
| Chevrolet | Silverado 3500 | 2001 to 2006 |
| Chevrolet | Suburban 1500 | 2000 to 2006 |
| Chevrolet | Suburban 2500 | 2000 to 2006 |
| Chevrolet | Tahoe | 2000 to 2006 |
| Chevrolet | Trailblazer EXT | 2003 to 2006 |
| Chevrolet | Trailblazer | 2006 to 2008 |
| GMC | Envoy XL | 2003 to 2006 |
| GMC | Envoy XUV | 2004 to 2005 |
| GMC | Envoy | 2005 to 2006 |
| GMC | Savana 1500 | 2003 to 2007 |
| GMC | Savana 2500 | 2003 to 2007 |
| GMC | Savana 3500 | 2003 to 2007 |
| GMC | Sierra 1500 Classic | 2007 to 2007 |
| GMC | Sierra 1500 HD Classic | 2007 to 2007 |
| GMC | Sierra 1500 HD | 2001 to 2006 |
| GMC | Sierra 1500 | 1999 to 2007 |
| GMC | Sierra 2500 HD Classic | 2007 to 2007 |
| GMC | Sierra 2500 HD | 2001 to 2007 |
| GMC | Sierra 2500 | 1999 to 2004 |
| GMC | Sierra 3500 Classic | 2007 to 2007 |
| GMC | Sierra 3500 HD | 2007 to 2007 |
| GMC | Sierra 3500 | 2001 to 2006 |
| GMC | Sierra | 2007 to 2007 |
| GMC | Yukon XL 1500 | 2000 to 2006 |
| GMC | Yukon XL 2500 | 2000 to 2006 |
| GMC | Yukon | 2000 to 2006 |
| Hummer | H2 | 2003 to 2007 |
| Isuzu | Ascender | 2003 to 2006 |
| Pontiac | Firebird | 1998 to 2002 |
| Pontiac | GTO | 2004 to 2006 |
| Pontiac | Grand Prix | 2005 to 2008 |
| Saab | 9-7x | 2005 to 2006 |





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