Diamond Racing Pistons - 7.4L 454 Magnum/MPI

Mercury Racing - 7.4L 454 Magnum/MPI
Piston Features:
  • 3D milling on piston crowns for ready to install finish
  • Direct replacement piston for the Mercury/Quicksilver Part# 737-881714T
  • Moly skirt coating for friction loss and skirt wear protection
  • Top ring down dimension: .290"
  • Ratios figured for .051 head gasket
  • Premium 1/16 x 1/16 x 4.0mm ring package included
  • Premium 8620 .155W wrist pins chamfered for roundwire locks included
  • Valve pocket depth: 0.115" intake and 0.000" exhaust
  • 4032 material
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