Speed-Pro Powerforged BB-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.

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 View this item Fits Applications

$66.99 Ships

844-L2307AF60

454ci Open Chamber Head Race Piston, .060'' Overbore Piston Dia.: 4.310'' 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 View this item Fits Applications

$66.99 Ships

844-L2372AF30

454ci Race Piston, .030'' Overbore Piston Dia.: 4.280'' Piston Top: 38.5cc Dome Pressed or Floating Pin Comp Ratio: 12.29:1 w/106.9cc Heads, 10.37:1 w/124cc Heads Ring Grooves: 1/16'', 1/16'', 3/16'' Sold as Each View this item

$106.99 Ships 02/22/12

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 More info on Sealed Power L2399NF30 Fits Applications

$61.99 Ships 02/22/12

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 View this item

$52.99 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 View this item

$52.99 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 View this item

$52.99 Ships

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 View this item Fits Applications

$42.99 Ships

844-L2240NF30

396ci Closed Chamber Head Stock-Type Piston, .030'' Overbore Piston Dia.: 4.124'' Piston Top: 21cc Dome Pressed Pin Comp Ratio: 8.05:1 w/100.9cc Heads, 7.10:1 w/119cc Heads Ring Grooves: 5/64'', 5/64'', 3/16'' Sold as Each View this item Fits Applications

$42.99 Ships

844-L2240NF40

396ci Closed Chamber Head Stock-Type Piston, .040'' Overbore Piston Dia.: 4.134'' Piston Top: 21cc Dome Pressed Pin Comp Ratio: 8.05:1 w/100.9cc Heads, 7.10:1 w/119cc Heads Ring Grooves: 5/64'', 5/64'', 3/16'' Sold as Each View this item Fits Applications

$42.99 Ships 02/22/12

844-L2240NF60

396ci Closed Chamber Head Stock-Type Piston, .060'' Overbore Piston Dia.: 4.154'' Piston Top: 21cc Dome Pressed Pin Comp Ratio: 8.05:1 w/100.9cc Heads, 7.10:1 w/119cc Heads Ring Grooves: 5/64'', 5/64'', 3/16'' Sold as Each View this item Fits Applications

$42.99 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 View this item

$85.99 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 View this item

$85.99 Ships 02/22/12

844-L2242NF60

396ci Aluminum Closed Chamber Stock-Type Piston, .060'' Overbore Piston Bore: 4.154'' 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 View this item

$85.99 Ships

844-L2239NF60

427 Closed chamber stock-type piston with floating pin. 12.07:1 compression with 106.9cc heads (+.030''). Same as L88 and ZL1 (430 hp). View this item Fits Applications

$89.99 Ships 02/22/12

844-L2268F30

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 View this item Fits Applications

$53.99 Ships

844-L2268F60

427ci Closed Chamber Stock-Type Piston, .060'' Overbore Piston Dia.: 4.310'' 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 View this item Fits Applications

$53.99 Ships

844-L2287F60

396ci Aluminum Closed Chamber Stock-Type Piston, .060'' Overbore Piston Bore: 4.154'' Piston Top: 43.1cc Dome Pressed Pin Comp Ratio: 11.47:1 w/106.9cc Heads Ring Grooves: 5/64'', 5/64'', 3/16'' Sold as Each View this item Fits Applications

$72.99 Ships 02/22/12

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 View this item Fits Applications

$65.99 Ships 02/22/12

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 View this item Fits Applications

$53.99 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 View this item Fits Applications

$53.99 Manufacturer's Availability Date Unknown

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 View this item Fits Applications

$53.99 Ships

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 View this item

$53.99 Ships 02/22/12

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 View this item

$53.99 Ships