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Speed-Pro Powerforged Oldsmobile Pistons


Sealed Power
Speed-Pro Powerforged Oldsmobile Pistons

Product images may differ from actual product appearance.

Speed-Pro developed powerforged pistons and set the pace in powerforged technology. The high silicon VMS-75 alloy is found exclusively in pistons “powerforged” by Speed-Pro. Up to 3,000 tons of force forges aluminum slugs into the basic piston form which creates a grain flow pattern in the structure providing excellent strength, ductility and improved heat dissipation.

Please Note: All compression ratios are figured with a gasket thickness representative of those commonly used and are approximate.


5 Products
Oldsmobile Stock-Type Pistons

844-L2320F
350ci w/Outside Air Induction (W31), .000'' Overbore
  • Piston Dia.: 4.057''
  • Piston Top: Flat Top
  • Pressed Pin
  • Comp Ratio: 10.49:1 w/62.5cc Heads, 8.73:1 w/80cc Heads
  • Ring Grooves: 5/64'', 5/64'', 3/16''
  • Sold as Each
  • $39.99
    Ships

    844-L2320F30
    350ci w/Outside Air Induction (W31), .030'' Overbore
  • Piston Dia.: 4.087''
  • Piston Top: Flat Top
  • Pressed Pin
  • Comp Ratio: 10.49:1 w/62.5cc Heads, 8.73:1 w/80cc Heads
  • Ring Grooves: 5/64'', 5/64'', 3/16''
  • Sold as Each
  • $39.99
    Ships

    844-L2323F
    455ci Stock-Type Piston, .000'' Overbore
  • Piston Dia.: 4.125''
  • Piston Top: -18cc Dish
  • Pressed Pin
  • Comp Ratio: 10.70:1 w/62.5cc Heads, 9.21:1 w/80cc Heads
  • Ring Grooves: 5/64'', 5/64'', 3/16''
  • Sold as Each
  • $50.99
    Ships

    844-L2323F30
    455ci Stock-Type Piston, .030'' Overbore
  • Piston Dia.: 4.155''
  • Piston Top: -18cc Dish
  • Pressed Pin
  • Comp Ratio: 10.83:1 w/62.5cc Heads, 9.32:1 w/80cc Heads
  • Ring Grooves: 5/64'', 5/64'', 3/16''
  • Sold as Each
  • $39.99
    Ships

    844-L2323F60
    455ci Stock-Type Piston, .060'' Overbore
  • Piston Dia.: 4.185''
  • Piston Top: -18cc Dish
  • Pressed Pin
  • Comp Ratio: 10.83:1 w/62.5cc Heads, 9.32:1 w/80cc Heads
  • Ring Grooves: 5/64'', 5/64'', 3/16''
  • Sold as Each
  • $50.99
    Ships

    5 Products