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Sealed Power 425NP - Federal Mogul Pistons

  • Piston, Cast, Dish, 4.000 in. Bore, 5/64 in., 5/64n., 3/16 in. Ring, Ford, Mercury, Cleveland, Each
  • Additional Info
    • Substitute Part: SLP-425NP
      The part number you requested is out of stock; however, the substitute item is very similar to the item you want.
 
BrandSealed Power
Manufacturer's Part Number425NP
Part TypePistons
Product LineFederal Mogul Pistons
Summit Racing Part NumberFEM-425NP
 
Bore (in)4.000 in.
Bore (mm)101.600mm
Piston StyleDish, with no valve reliefs
Piston MaterialCast aluminum
Compression Distance (in)1.630 in.
Wrist Pin StylePress-fit
Pin Diameter (in)0.912 in.
Piston Ring Thickness5/64 in. x 5/64 in. x 3/16 in.
QuantitySold individually.
NotesRecessed piston head is 0.080 inch deep x 2.770 inch diameter.
CalculatorCompression Calculator
ToolStroker Combinations
 

The rising demands on pistons require continuous optimization of piston materials and manufacturing processes. Federal Mogul offers a range of pistons from steel/cast aluminum articulated to steel/forged aluminum composite. Manufactured to strict tolerances, these pistons are able to withstand engine stresses and give you the best possible performance.

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