1. Engine Rocker & Valve Covers Items
  2. sku: 13340168384560008
  3. SPEEDWAY 91023121-BLK

SPEEDWAY MOTORS 91023121-BLK Gm Ls Cast Valve Covers Coil Mounts

91023121-blk Speedway Motors Gm Ls Cast Aluminum Valve Covers With Coil Mounts Pair Black

( Brand: Speedway Motors ), ( Manufacturer Part Number: 91023121-BLK ), ( Type: Valve Covers ), ( Material: Cast Aluminum ), ( Color: Black ), ( Finish: Painted ), ( California Prop 65 Warning: True )

Review SPEEDWAY MOTORS Gm Ls Cast Aluminum Valve Covers Coil Mounts Pair Black

Introducing the Speedway Motors 91023121-BLK GM LS Cast Valve Covers with Coil Mounts, designed specifically for the latest LS engine platforms. These high-performance valve covers are meticulously crafted to deliver both style and functionality.

Crafted from durable cast aluminum, these valve covers provide excellent cooling and are known for their robustness. The matte black finish not only enhances the visual appeal of your engine compartment but also offers protection against corrosion and harmful environmental elements.

One of the standout features of these valve covers is the integrated coil mounts. The coil mounts are designed to securely hold your ignition coils in place, eliminating the need for additional hardware and ensuring a clean and tidy engine bay. Each coil mount is precision engineered to provide a secure and reliable grip on the coils, minimizing the risk of vibration or loosening.

The valve covers are also designed with a generous oil capacity, ensuring ample lubrication for your engine. The oversized breather holes provide efficient venting, reducing the risk of vacuum leaks and maintaining consistent engine performance.

These valve covers are a direct replacement for OEM units, ensuring a seamless installation experience. They are compatible with various LS engine platforms, including LS1, LS2, LS3, LS6, LS7, and LS9 engines. Be sure to check the Speedway Motors application guide for specific engine compatibility.

In summary, the Speedway Motors 91023121-BLK GM LS Cast Valve Covers with Coil Mounts are an excellent choice for those seeking high-quality and functional valve covers for their LS engine platform. These covers deliver on both style and performance, making them an essential upgrade for any LS engine enthusiast.

Pros and Cons of Buying Speedway 91023121-BLK GM LS Cast Valve Covers Coil Mounts

The Speedway 91023121-BLK GM LS Cast Valve Covers Coil Mounts are aftermarket components designed to replace the original equipment on select General Motors LS engines. These mounts secure the ignition coils to the valve covers, and they are known for their robust construction and durability. In this discussion, we will outline the key advantages and disadvantages of purchasing these mounts.

Pros:

1. Enhanced durability: The cast aluminum construction of these mounts is significantly stronger than the OEM plastic mounts. This added strength can help prevent coil failure and reduce the likelihood of engine damage due to coil vibration.

2. Improved appearance: The black powder-coated finish on these mounts provides a more attractive appearance compared to the stock plastic mounts. This can be especially important for those who are building or restoring their engines and are looking for a more polished appearance.

3. Better heat management: Cast aluminum is an effective heat conductor, which can help dissipate heat from the ignition coils more efficiently. This can lead to improved engine performance and longer coil life.

Cons:

1. Higher cost: Aftermarket cast aluminum mounts like the Speedway 91023121-BLK are typically more expensive than their OEM plastic counterparts. This may not be a significant concern for those who prioritize performance and durability, but it could be a limiting factor for those on a tight budget.

2. Installation complexity: Installing aftermarket cast aluminum mounts can be more challenging than installing the OEM plastic mounts. This is due to the need for precise alignment and the use of specialized tools, such as a cast aluminum alignment fixture.

3. Potential for increased noise: Cast aluminum mounts are stiffer than plastic mounts, which can lead to increased engine noise. This may not be a significant issue for some, but it could be a concern for those who prioritize a quiet engine operation.

Conclusion:

The Speedway 91023121-BLK GM LS Cast Valve Covers Coil Mounts offer several advantages, including enhanced durability, improved appearance, and better heat management. However, they come with some disadvantages, such as a higher cost, installation complexity, and potential for increased noise. Ultimately, the decision to purchase these mounts will depend on an individual's priorities and budget. If durability and improved performance are top concerns, then the aftermarket cast aluminum mounts may be the best choice. However, if cost and ease of installation are more important, then the OEM plastic mounts may be a more suitable option.

Details:

Mounts Gen 5 LS ignition coils. It also features a baffled stock-style ventilation set-up and finish-matched oil fill cap. The gaskets that come in the set are not all good as they thick enough to stay groove covers. The filler cap is nice, would have been nicer if it was polished instead of just raw billet.

Part # 91023121-BLK Condition New Brand Speedway Motors Sold Pair Details These tall, cast aluminum valve covers are a great way to improve the look of your LS engine, without any radical changes its configuration. Cast aluminum valve covers available in Black, Plain, and Polished. Not a big deal as I can reuse my OEM gaskets. Fits GM LS-based small block engines.

Part # 91023121-BLK Sold in Quantity Pair Notes 1.60 internal height Reviews Beautifully cast,less expensive version of the Holley covers: Rated by Rich C. The cover has an increased height to allow for added valve train clearance and features studs mounting LS coils with 72mm bolt spacing. The bolt and seal gaskets are much better quality.

Valve Cover Bolts, Matching Oil Fill Cap and Gaskets Included. Yes, I recommend this product. The seal very well and provide extra clearance for larger rockers.

part #: 91023121 price

  • $237.99

specifications rockercove:

  • brand: Speedway Motors
  • mpn: 91023121-blk
  • type: Valve Covers
  • material: Cast Aluminum
  • color: Black
  • finish: Painted
  • california prop 65 warning: True

payments rockercove:

  • other
  • credit card: Discover
  • wallet: Apple-pay

returns rockercove:

  • paid by: Seller
  • time: 30 Days
  • policy: Returns Accepted

general rockercove:

  • condition: New
  • Engines Engine Parts > Valvetrain Components > Rocker Valve Covers

seller rockercove:

  • rating: 99.8%
  • # reviews: 366536
  • city: Lincoln, Nebraska

offer rockercove:

  • options: Ship-to-home
  • availability: In Stock
  • started: May 24, 2026
  • quantity: 7
  • sold: 0

shipping rockercove:

  • type: Fixed
  • class: Standard
  • service: Standard
  • transit: 4-6 Days
  • cost: $0.00
type: valve covers, finish: painted, california prop 65 warning: true,
category: auto parts > engines engine parts > valvetrain components > rocker valve covers, color: black, material: cast aluminum, sku: 13340168384560008,

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1 offer $237.99 USD
  • Offer #1: $237.99 price + $0.00 shipping estimate = $237.99* total. Fits GM LS-based small block engines, Cast aluminum valve covers available in Black, Plain, and Polished, Mounts Gen 5 LS style ignition coils, Valve Cover Bolts, Matching Oil Fill Cap and Valve Cover Gaskets Included.FREE SHIPPING

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