Pistons can be floated or press fitted. Snap rings for floating pins Not Included.
Hastings or Mahle rings depending on availability!
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This listing is for a set of eight 8 Standard 4.000" Bore diameter Dish top pistons and a Moly piston ring set compatible replacements for Mercruiser 5.7L V-8 255hp 260hp 270hp 280hp 300hp MIE Mag Alpha Engines. Piston specifications are as follows: BORE: 4.000" (at STD) Head Type: Recessed head - we carry flat top pistons in other listings Ring Lands: 5/64"-5/64"-3/16" Comp. Distance: 1.540" Pin Diameter: .9275"