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Bill Smith
Founder, 1929-2014
Speedy Bill
Since 1952
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America's Oldest Speed Shop ®


Buick 401 Nailhead Pistons

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Piston Style:
Piston Material:
Cast Aluminum
Garage Sale:
Compression height - 2.2968"
Buick 401 Nailhead Pistons

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Q & A

What's in the Box

Replacement cast aluminum 4.1875" bore piston set for '59-'66 Buick 401 Nailhead. Specify .030", .040" or .060" oversize.

  • Cast from high silicon A-332 aluminum alloy
  • Machined on modern CNC machinery
  • Precision balanced & weight-matched sets
  • Balanced to within 8 grams from the lightest to the heaviest piston
  • The 401 rings are a cast top, and a cast second ring. 

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Replacement 4.1875" bore piston ring sets for '59-'66 Buick 401 Nailhead. These rings are a cast top and a cast second ring.

Specify .030", .040" or .060" oversize.