The Best Ls3 Engine Cover of 2025 – Reviewed and Top Rated
After hours researching and comparing all models on the market, we find out the Best Ls3 Engine Cover of 2025. Check our ranking below.
2,796 Reviews Scanned
- Genuine General Motors part that fits your specific vehicle
- Engine Cover
- Part Number: 12643709
- Manufactured to meet specifications for fit, form, and function
- Motor City Made
- Non OEM Part
- Made By Motor City Sheet Metal And Is Compatible/Replacement For 1999-2006 Silverado Sierra Custom LS Engine Cover, 4.8, 5.3, 6.0 Truck Intake
- Quality Made Repiar Panel
- Enhanced Protection: Protects your vehicle from rust, road debris, and other potential damage.
- Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
- GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors.
- GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
- GM regularly updates production and service part designs to integrate new materials and technologies
- Compatible With:Chevrolet Camaro Firebird 1998-2002,Chevrolet Corvette 1997-2013,Pontiac GTO 2004-2006,Chevrolet Camaro 2010-2013,Pontiac Firebird 1998-2002,LS LSX LS1 LS6 LS2 LS3 LS4 engines
- Size: Grab location Hexagonal diagonal dimensions is 2.5inch
- Material:Made of high performance lightweight aluminum, anti-corrosion and anti-rust, durable for long lifetime
- Function:The product can protect the engine from the influence of dust and impurities, improve the engine performance, and have a long service life. The O-ring is used to prevent oil leakage at the bottom of the adapter
- Quality Service:When You Encounter Any Questions About The Product, You Can Contact Me As Soon As Possible, And I Will Answer It For You
- Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
- GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors.
- GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
- GM regularly updates production and service part designs to integrate new materials and technologies
- Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
- GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors.
- GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
- GM regularly updates production and service part designs to integrate new materials and technologies
- Dress up your engine with this great looking billet aluminum valley cover
- Made in Wichita, Kansas from aerospace grade, USA produced, billet aluminum
- Compatible with Gen IV Engine Blocks; LS2 LS7 LH6 L92 L76 LY2 LY5 LY6 LC9 LFA LH8 LMG LS3 L98 L9H L20 L94 LZ1 L99 L96 LC8 L77
- Machined aluminum finish
- Includes stainless steel bolts
- These add an additional 0.54 of internal clearance over factory height valve covers.
- The valve covers have integrated angled coil mounts, and the hi-tech look and performance of coil-on-cover applications.
- Fits LS1, LS2, LS6 engines using coils with a standard LS3 bolt spacing of 72mm.
- These valve covers come ready for installation with an style baffle and ventilation system, lengthened factory style mounting hardware, plus a billet aluminum oil fill cap.
- FITMENT: Fit for Chevy LS Gen 4 L99 LS3 NON AFM DOD engine
- FITMENT: Compatible with Gen IV engine blocks, for LS2 LS3 LS7 LH6 L92 L76 LY2 LY5 LY6 LC9 LFA LH8 LMG L98 L9H L20 L94 LZ1 L99 L96 LC8 L77
- PACKAGE INCLUDE: Valley cover kit include oil pressure sensor adapter port, o-rings, stainless steel bolts, and valley pan
- MATERIAL: Our ls valley cover plate made of aluminum
- NOTE: Professional installation is recommended
- Durable ABS Plastic – Heat-resistant construction protects LS engine intake, exhaust ports. and waterpump from dust, moisture and debris during storage or maintenance.
- Cathedral Port Design – Precision-molded to fit standard LS cathedral-style intake and exhaust openings for a secure, reusable seal.
- Engine Protection for Rebuilds & Painting – Shields internal passages while the engine is stored, painted, or transported to a machine shop.
- Quick, Tool-Free Installation – Bolts on and off by hand for fast setup; reusable for multiple engine projects or seasonal storage.
- Ideal for LS Swaps & Performance Builds – Perfect accessory for restorers, racers, and enthusiasts working with Chevy LS engines.
Last update on 2026-04-05 / Affiliate links / Images from Amazon Product Advertising API
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- Features: What bells and whistles matter for an Ls3 Engine Cover?
- Specifications: How powerful they are can be measured.
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- Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Ls3 Engine Cover.
- Product Quality: You don’t always get what you pay for with an Ls3 Engine Cover, sometimes less, and sometimes more.
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We always remember that maintaining Ls3 Engine Cover information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.
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