Buick Nailhead Aluminum Valve Cover Set | 364 401 425

Buick Nailhead Aluminum Valve Covers

Complete your classic Buick engine build with a premium set of polished aluminum valve covers designed specifically for the iconic Buick Nailhead V8. These covers deliver timeless styling, precision machining, and show-quality presence for restorations, street rods, and custom builds.

Crafted from 356 heat-treated aluminum, these Nailhead valve covers offer durability and improved gasket sealing while enhancing the visual impact of your engine bay. The high-luster polished finish provides a clean, traditional look that complements both stock and performance applications.

Whether you're building a 364, 401, or 425 Nailhead, this valve cover set adds authentic character and craftsmanship to your Buick project.

Fitment

Compatible with Buick Nailhead engines, including:

• 364
• 401
• 425

(Confirm cylinder head configuration prior to ordering.)

Key Features

• High-luster polished aluminum finish
• Fully machined gasket sealing surface for improved sealing
• CNC-profiled flange perimeter for consistent fitment
• Accepts 1-1/4" breather grommets (not included)
• 356 heat-treated aluminum construction
  

Specifications

• Sold as a matched pair (2 valve covers)
• Weight: 4.75 lbs each

What’s Included

• (2) Buick Nailhead valve covers

Finish Options

• Polishing available (adds additional lead time)

Manufactured in the USA

These Buick Nailhead aluminum valve covers are ideal for traditional hot rods, vintage Buick restorations, and custom 401 or 425 performance builds. Pair them with other Nailhead engine dress-up components for a cohesive, period-correct engine bay.

Frequently Asked Questions

Will these fit a 401 Buick Nailhead?
Yes, these valve covers are designed to fit Buick Nailhead engines including 364, 401, and 425 applications.

Do these accept breathers?
Yes, these covers accept 1-1/4" breather grommets (not included).

Are these cast or billet?
These valve covers are manufactured from 356 heat-treated sand-cast aluminum.

Are they sold individually or as a pair?
They are sold as a matched pair (2 covers).