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Speed-Pro Powerforged Pontiac Pistons


Sealed Power
Speed-Pro Powerforged Pontiac 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.


2 Products
Pontiac Performance Pistons

844-L2359NF30
455ci Performance Pistons, .030'' Overbore
  • Piston Dia.: 4.181''
  • Piston Top: -6.70cc Flat, 4-Valve Reliefs
  • Pressed Pin
  • Comp Distance: 1.497''
  • Ring Grooves: 5/64'', 1/16'', 3/16''
  • Sold as Each
  • $83.99
    Ships

    844-L2359NF40
    455ci Performance Pistons, .040'' Overbore
  • Piston Dia.: 4.111''
  • Piston Top: -6.70cc Flat, 4-Valve Reliefs
  • Pressed Pin
  • Comp Distance: 1.497''
  • Ring Grooves: 5/64'', 1/16'', 3/16''
  • Sold as Each
  • $83.99
    Ships

    2 Products