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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.

1 Product
Pontiac Stock-Type Pistons
Sealed Power L2262F40 - Speed-Pro Powerforged Pontiac Pistons
400ci Stock-Type Piston, .040'' Overbore
  • Piston Dia.: 4.160''
  • Piston Top: -6.7cc Dish, 4-Valve Reliefs
  • Pressed Pin
  • Comp Ratio: 10.24:1 w/69cc Heads, 7.16:1 w/114cc Heads
  • Ring Grooves: 5/64'', 5/64'', 3/16''
  • Sold as Each
  • Was: $50.99
    Now: $38.99

    1 Product