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12_bb8d5928-ce3b-4022-b045-373050caa00c - Northline Parts

3-11/16" Tall Finned Aluminum Valve Covers Fits Chevy Big Block 396 402 427 454

Alligator_819_x_200_px - Northline Parts

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I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks

Edward H. — Verified customer

3-11/16" Tall Finned Aluminum Valve Covers Fits Chevy Big Block 396 402 427 454

Upgrade your engine bay with these premium tall finned aluminum valve covers. Designed specifically for Chevy Big Block engines, these high-quality aftermarket covers provide a classic performance look while offering the necessary clearance for high-performance valve trains. Constructed for durability and style, these covers are the perfect addition for any enthusiast looking to enhance their vehicle's aesthetic and functionality.

Key Features & Benefits

  • Constructed from high-grade cast aluminum for lasting durability and heat dissipation.
  • Classic finned design provides a timeless, custom engine appearance.
  • Tall 3-11/16" profile offers extra clearance for rockers and high-performance valve train components.
  • High-quality aftermarket construction ensures a reliable fit and finish.
  • Provides a secure seal to help prevent oil leaks and maintain engine cleanliness.

Compatible Models

  • Chevy Big Block 396
  • Chevy Big Block 402
  • Chevy Big Block 427
  • Chevy Big Block 454

Product Specifications

  • Height: 3-11/16"
  • Material: Cast Aluminum
  • Style: Finned
  • Fitment Type: Aftermarket

Frequently Asked Questions

Is this an OEM part?
No, this is a premium aftermarket part designed to provide excellent fitment and performance for Chevy Big Block engines.

How do I confirm compatibility?
Please verify your engine displacement (396, 402, 427, or 454) and check your valve train height requirements to ensure the 3-11/16" tall profile will fit your specific engine configuration.


Important: This is a premium aftermarket part and is not manufactured by the original equipment manufacturer (OEM). Brand names and model numbers are used for reference purposes only. Compatibility may vary depending on the machine's serial number. Please verify fitment before purchase.

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Service was professional and easy to work with. They kept me updated on my order and recommended a different part when the one I originally picked wasn’t going to work. Everything showed up as expected and the process was smooth overall.

- Customer, Chris D.

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