(8)Speed Pro Forged Pistons PLUS Hastings Moly Rings in .030" Over Bore or 4.124" Bore size compatible replacements for Chevrolet 396. Domed head .182" high. DurOshield skirt coated piston. 1965-69 396-325/350HP; closed chamber heads. Good for street or race/nitrous to 150 shot. .9897" pin diam. - pins included. Stock 3.766" stroke. We may substitute Hastings or Mahle rings depending on availability.