HOL-241-183 Holley 2-Piece Finned Valve Cover – Gen III/IV LS – Factory Orange Machined
Chevrolet Gen III/IV LS – Cast Aluminum – Coil-Mounting Base & Integrated Coil Cover
Features
- Includes low-profile billet oil fill cap
- Coil cover features Holley vintage style fins and cast-in wiring provisions
- Clearance for .750” lift cam with stock style rocker arms
- Base features internally baffled ventilation system
- Base fits LS1, LS2, LS3, LS6 and LS7 engines
- Retain the performance of factory coil-on-cover ignition without the unsightly styling
- Cast aluminum 2-Piece LS valve covers designed to mount and hide both Gen I and Gen V style LS coil bodies
- Includes all necessary coil mounting and dress-up hardware
- No coil relocation, wire harness extensions, or custom spark plug wires required
Product Video – YouTube
Holley’s new 2-Piece LS valve covers are a great way to update the look of your LS engine without the use of complicated adapter systems or the hassle of remote coil relocation. These modular LS valve covers feature an OE height, internally baffled LS valve cover base with integrated coil mounts for popular Gen I and Gen V style LS coil bodies (coils not included), and a vintage style finned overcover that hides the unsightly LS coils and messy wiring harness – allowing the full performance benefits of coil-on-cover ignition setups without the robotic styling. Each modular coil cover features a simplified version of our Vintage Series style fins that seamlessly blends with other finned Holley dress-up accessories such as our LS valley covers and 14″ round air cleaners. The coil cover also features cast-in provisions for the spark plug boots and coil wiring harness so no extensions or custom wiring is required.
Each 2-Piece LS valve cover set includes a low-profile billet oil fill cap, hardware and spacers for mounting both versions of LS coil bodies, and 12-point dress up hardware and rubber grommets for the coil covers. These modular LS valve covers will be offered in 5 unique finishes: natural cast, polished, satin black, factory orange, and gloss red (black, factory orange and gloss red sets feature machined fins). Polished and black versions coming soon.
Attributes:
| Baffle Included | Yes |
| Application | GM LS Engines |
| Bolt Pattern | Center Bolt |
| Brand | Holley |
| Breather Cap Included | No |
| Breather(s) Included | No |
| Category | Engine |
| Coil Mounting Studs | Yes, on Baseplate |
| Coil Options | with Coil Stands |
| Color | Factory Orange |
| Construction | Die Cast Aluminum |
| Design Type | 2-Piece LS |
| Emission Code | 7 |
| Features | Finned |
| Finish | Factory Orange |
| Gasket Included | No |
| Gaskets Included | No |
| Grade Type | Performance |
| Gromment(s) Included | No |
| Grommets Included | No |
| Height | 3.75″ |
| Hold Down Tabs Included | No |
| Logo | None |
| Material | Cast Aluminum |
| Mounting Hardware Included | Yes |
| Oil Fill | Yes |
| Oil Fill Cap Included | Yes |
| Oil Filler Cap Included | Yes |
| Product Type | Valve Cover |
| Quantity | Pair |
| Style | Finned |
| Type of Component | Valve Cover |
| Valve Cover Gasket Included | No |
| Valvetrain Clearance | .750″ lift cam with stock style rocker arms |
| Warranty | Manufacturer’s Limited 90 Day Warranty |
Vehicle Applications:
| Make | Model | Years |
| Buick | LaCrosse | 2008 to 2009 |
| Buick | Rainier | 2004 to 2007 |
| Cadillac | CTS | 2004 to 2015 |
| Cadillac | Escalade ESV | 2003 to 2006 |
| Cadillac | Escalade EXT | 2002 to 2006 |
| Cadillac | Escalade | 2002 to 2013 |
| Chevrolet | Avalanche 1500 | 2002 to 2006 |
| Chevrolet | Avalanche | 2007 to 2013 |
| Chevrolet | Camaro | 1998 to 2015 |
| Chevrolet | Caprice | 2011 to 2017 |
| Chevrolet | Colorado | 2009 to 2012 |
| Chevrolet | Corvette | 1997 to 2013 |
| Chevrolet | Express 1500 | 2003 to 2014 |
| Chevrolet | Express 2500 | 2003 to 2017 |
| Chevrolet | Express 3500 | 2003 to 2017 |
| Chevrolet | Impala | 2006 to 2009 |
| Chevrolet | Monte Carlo | 2006 to 2007 |
| Chevrolet | SS | 2014 to 2017 |
| 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 2017 |
| Chevrolet | Silverado 2500 | 1999 to 2017 |
| Chevrolet | Silverado 3500 Classic | 2007 to 2007 |
| Chevrolet | Silverado 3500 HD | 2007 to 2017 |
| Chevrolet | Silverado 3500 | 2001 to 2017 |
| Chevrolet | Suburban 1500 | 2000 to 2014 |
| Chevrolet | Suburban 2500 | 2000 to 2013 |
| Chevrolet | Suburban 3500 HD | 2016 to 2017 |
| Chevrolet | Suburban | 2014 to 2017 |
| Chevrolet | Tahoe | 2000 to 2014 |
| Chevrolet | Trailblazer EXT | 2003 to 2006 |
| Chevrolet | Trailblazer | 2006 to 2009 |
| GMC | Canyon | 2009 to 2012 |
| GMC | Envoy XL | 2003 to 2006 |
| GMC | Envoy XUV | 2004 to 2005 |
| GMC | Envoy | 2005 to 2009 |
| GMC | Savana 1500 | 2003 to 2014 |
| GMC | Savana 2500 | 2003 to 2017 |
| GMC | Savana 3500 | 2003 to 2017 |
| 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 2014 |
| GMC | Sierra 2500 HD Classic | 2007 to 2007 |
| GMC | Sierra 2500 HD | 2001 to 2017 |
| GMC | Sierra 2500 | 1999 to 2004 |
| GMC | Sierra 3500 Classic | 2007 to 2007 |
| GMC | Sierra 3500 HD | 2007 to 2017 |
| GMC | Sierra 3500 | 2001 to 2006 |
| GMC | Sierra | 2007 to 2007 |
| GMC | Yukon XL 1500 | 2000 to 2014 |
| GMC | Yukon XL 2500 | 2000 to 2013 |
| GMC | Yukon | 2000 to 2014 |
| Hummer | H2 | 2003 to 2009 |
| Hummer | H3 | 2008 to 2010 |
| Isuzu | Ascender | 2003 to 2006 |
| Pontiac | Firebird | 1998 to 2002 |
| Pontiac | G8 | 2008 to 2009 |
| Pontiac | GTO | 2004 to 2006 |
| Pontiac | Grand Prix | 2005 to 2008 |
| Saab | 9-7x | 2005 to 2009 |






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