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Speed-Pro Powerforged Big Block Chevy Pistons


Sealed Power
Speed-Pro Powerforged Big Block Chevy 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.


21 Products
BB-Chevy Race Pistons

844-L2307AF
454ci Open Chamber Head Race Piston
  • Piston Dia.: 4.250''
  • Piston Top: 50cc Dome
  • Pressed or Floating Pin
  • Comp Ratio: 12.50:1 w/116.9cc Heads, 11.58:1 w/124cc Heads
  • Ring Grooves: 1/16'', 1/16'', 3/16''
  • Sold as Each
  • $80.99
    Order Today Ships 09/03/14

    844-L2307AF30
    454ci Open Chamber Head Race Piston, .030'' Overbore
  • Piston Dia.: 4.280''
  • Piston Top: 50cc Dome
  • Pressed or Floating Pin
  • Comp Ratio: 12.50:1 w/116.9cc Heads, 11.58:1 w/124cc Heads
  • Ring Grooves: 1/16'', 1/16'', 3/16''
  • Sold as Each
  • $69.99
    Ships

    844-L2399NF
    454ci Open Chamber Head Race Piston, .000'' Overbore
  • Piston Dia.: 4.250''
  • Piston Top: .095cc Dome
  • Pressed or Floating Pin
  • Comp Ratio: 10.23:1 w/100.9cc Heads,
  • Ring Grooves: 5/64'', 5/64'', 3/16''
  • Sold as Each
  • $101.99
    Order Today Ships 09/03/14

    844-L2399NF30
    454ci Open Chamber Head Race Piston, .030'' Overbore
  • Piston Dia.: 4.280''
  • Piston Top: .095cc Dome
  • Pressed or Floating Pin
  • Comp Ratio: 10.23:1 w/100.9cc Heads,
  • Ring Grooves: 5/64'', 5/64'', 3/16''
  • Sold as Each
  • $60.99
    Ships

    844-L2399NF40
    454ci Open Chamber Head Race Piston, .040'' Overbore
  • Piston Dia.: 4.290''
  • Piston Top: .095cc Dome
  • Pressed or Floating Pin
  • Comp Ratio: 10.23:1 w/100.9cc Heads,
  • Ring Grooves: 5/64'', 5/64'', 3/16''
  • Sold as Each
  • $74.99
    Order Today Ships 09/03/14

    844-L2465F
    454ci Open Chamber Race Piston, .000'' Overbore
  • Piston Dia.: 4.251''
  • Piston Top: 25.7cc Dome
  • Pressed Pin
  • Comp Ratio: 11.31:1 w/100.9cc Heads, 9.61:1 w/119cc Heads
  • Ring Grooves: 5/64'', 5/64'', 3/16''
  • Sold as Each
  • $61.99
    Ships

    844-L2465F30
    454ci Open Chamber Race Piston, .030'' Overbore
  • Piston Dia.: 4.281''
  • Piston Top: 25.7cc Dome
  • Pressed Pin
  • Comp Ratio: 11.31:1 w/100.9cc Heads, 9.61:1 w/119cc Heads
  • Ring Grooves: 5/64'', 5/64'', 3/16''
  • Sold as Each
  • $60.99
    Ships

    844-L2465F60
    454ci Open Chamber Race Piston, .060'' Overbore
  • Piston Dia.: 4.311''
  • Piston Top: 25.7cc Dome
  • Pressed Pin
  • Comp Ratio: 11.31:1 w/100.9cc Heads, 9.61:1 w/119cc Heads
  • Ring Grooves: 5/64'', 5/64'', 3/16''
  • Sold as Each
  • $61.99
    Ships
    BB-Chevy Stock-Type Pistons

    844-L2240NF
    396ci Closed Chamber Head Stock-Type Piston
  • Piston Dia.: 4.094''
  • Piston Top: -21cc Dome
  • Pressed Pin
  • Comp Distance: 1.760''
  • Ring Grooves: 5/64'', 5/64'', 3/16''
  • Sold as Each
  • $46.99
    Ships

    844-L2240NF30
    396ci Closed Chamber Head Stock-Type Piston, .030'' Overbore
  • Piston Dia.: 4.124''
  • Piston Top: 21cc Dome
  • Pressed Pin
  • Comp Ratio: 9.59:1 w/100.9cc Heads, 8.23:1 w/119cc Heads
  • Ring Grooves: 5/64'', 5/64'', 3/16''
  • Sold as Each
  • $46.99
    Order Today Ships 09/16/14

    844-L2240NF40
    396ci Closed Chamber Head Stock-Type Piston, .040'' Overbore
  • Piston Dia.: 4.134''
  • Piston Top: 21cc Dome
  • Pressed Pin
  • Comp Ratio: 9.63:1 w/100.9cc Heads, 8.26:1 w/119cc Heads
  • Ring Grooves: 5/64'', 5/64'', 3/16''
  • Sold as Each
  • $46.99
    Ships

    844-L2242NF30
    396ci Aluminum Closed Chamber Stock-Type Piston, .030'' Overbore
  • Piston Bore: 4.124''
  • Piston Top: 38.3cc Dome
  • Pressed Pin
  • Comp Ratio: 10.58:1 w/109.4cc Heads
  • Ring Grooves: 5/64'', 5/64'', 3/16''
  • Sold as Each
  • $48.99
    Ships

    844-L2242NF40
    396ci Aluminum Closed Chamber Stock-Type Piston, .040'' Overbore
  • Piston Bore: 4.134''
  • Piston Top: 37.9cc Dome
  • Pressed Pin
  • Comp Ratio: 10.58:1 w/109.4cc Heads
  • Ring Grooves: 5/64'', 5/64'', 3/16''
  • Sold as Each
  • $76.99
    Order Today Ships 09/03/14

    844-L2268NF30
    427ci Closed Chamber Stock-Type Piston, .030'' Overbore
  • Piston Dia.: 4.280''
  • Piston Top: 35.5cc Dome
  • Pressed Pin
  • Comp Ratio: 11.25:1 w/106.9cc Head, 9.99:1 w/119cc Head
  • Ring Grooves: 5/64'', 5/64'', 3/16''
  • Sold as Each
  • $104.99
    Ships

    844-L2308AF60
    427ci Open Chamber Stock-Type Piston, .060'' Overbore
  • Piston Dia.: 4.310''
  • Piston Top: 50cc Dome
  • Pressed or Floating Pin
  • Comp Ratio: 11.79:1 w/116.9cc Heads, 10.95:1 w/124cc Heads
  • Ring Grooves: 1/16'', 1/16'', 3/16''
  • Sold as Each
  • $89.99
    Order Today Ships 09/03/14

    844-L2349F
    Sealed Power POWERFORGED PISTON
    $61.99
    Ships

    844-L2349F30
    454ci LS6 Closed Chamber Head Piston, .030'' Overbore
  • Piston Dia.: 4.280''
  • Piston Top: 29.4cc Dome
  • Pressed Pin
  • Comp Ratio: 11.89:1 w/100.9cc Head, 10.01:1 w/119cc Head
  • Ring Grooves: 5/64'', 5/64'', 3/16''
  • Sold as Each
  • $61.99
    Ships

    844-L2349F60
    454ci LS6 Closed Chamber Head Piston, .060'' Overbore
  • Piston Dia.: 4.310''
  • Piston Top: 29.4cc Dome
  • Pressed Pin
  • Comp Ratio: 11.89:1 w/100.9cc Head, 10.01:1 w/119cc Head
  • Ring Grooves: 5/64'', 5/64'', 3/16''
  • Sold as Each
  • $61.99
    Ships

    844-L2377F30
    454ci Stock-Type Piston, .030'' Overbore
  • Piston Dia.: 4.280''
  • Piston Top: Flat-Top 2-Valve Reliefs, Chamfered
  • Pressed Pin
  • Comp Ratio: 8.72:1 w/100.9cc Heads, 7.73:1 w/119cc Heads
  • Ring Grooves: 5/64'', 5/64'', 3/16''
  • Sold as Each
  • $59.99
    Order Today Ships 09/03/14
    BB-Chevy Supercharged Pistons

    844-L2453F
    427ci Piston Supercharged w/Long Rods
  • Piston Dia.: 4.250''
  • Piston Top: -7.96cc Dish
  • Pressed or Floating Pin
  • Comp Ratio: 8.15:1 w/100.9cc Heads, 7.03:1 w/124cc Heads
  • Ring Grooves: 5/64'', 5/64'', 3/16''
  • Sold as Each
  • $61.99
    Order Today Ships 09/03/14

    844-L2453F60
    427ci Piston Supercharged w/Long Rods, .060'' Overbore
  • Piston Dia.: 4.310''
  • Piston Top: -7.96cc Dish
  • Pressed or Floating Pin
  • Comp Ratio: 8.15:1 w/100.9cc Heads, 7.03:1 w/124cc Heads
  • Ring Grooves: 5/64'', 5/64'', 3/16''
  • Sold as Each
  • $68.99
    Order Today Ships 09/03/14

    21 Products