Speed-Pro Powerforged Ford 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-L2303NF30

428ci Stock-Type Piston, .030'' Overbore Piston Dia.: 4.160'' Piston Top: -10.3cc Dish, 4-Valve Reliefs Floating Pin Comp Ratio: 10.66:1 w/68cc Heads, 10.07:1 w/74cc Heads Ring Grooves: 5/64'', 5/64'', 3/16'' Sold as Each View this item Fits Applications

$53.99 Ships 02/22/12

844-LW2602F30

460ci Stock-Type Piston Piston Dia.: 4.390'' Piston Top: Flat Top , 1-Valve Relief Pressed or Floating Pin Ring Grooves: 5/64'', 5/64'', 3/16'' Lightweight Piston Sold as Each More info on Sealed Power LW2602F30

$74.99 Ships 02/22/12

844-L2291F30

390ci Stock-Type Piston, .030'' Overbore Piston Dia.: 4.080'' Piston Top: Flat Top, 4-Valve Reliefs Pressed or Floating Pin Comp Ratio: 10.00:1 w/67.1cc Heads, 9.91:1 w/68.0cc Heads Ring Grooves: 5/64'', 3/32'', 3/16'' Sold as Each View this item Fits Applications

$41.99 Ships

844-L2305F

302ci 1973-76 w/8.229'' Deck Height Piston, .000'' Overbore Piston Dia.: 4.000'' Piston Top: -7.4cc Dish, 4-Valve Reliefs Pressed Pin Comp Ratio: 9.43:1 w/54.5cc Heads, 8.04:1 w/69cc Heads Ring Grooves: 5/64'', 5/64'', 3/16'' View this item Fits Applications

$44.99 Ships 02/22/12

844-L2305F30

302ci 1973-76 w/8.229'' Deck Height Piston, .030'' Overbore Piston Dia.: 4.030'' Piston Top: -7.4cc Dish, 4-Valve Reliefs Pressed Pin Comp Ratio: 9.56:1 w/54.5cc Heads, 8.14:1 w/69cc Heads Ring Grooves: 5/64'', 5/64'', 3/16'' View this item Fits Applications

$44.99 Ships 02/22/12

844-L2366F30

429ci Stock-Type Piston, .030'' Overbore Piston Dia.: 4.390'' Piston Top: Flat Top Pressed or Floating Pin Comp Ratio: 11.10:1 w/72cc Heads, 8.87:1 w/97cc Heads Ring Grooves: 5/64'', 5/64'', 3/16'' Sold as Each View this item Fits Applications

$53.99 Ships

844-L2379F

351C Stock-Type Piston, .000'' Overbore Piston Dia.: 4.000'' Piston Top: Flat Top, 2-Valve Reliefs Pressed Pin Comp Ratio: 10.63:1 w/58.6cc Heads, 8.79:1 w/76.2cc Heads Ring Grooves: 5/64'', 5/64'', 3/16'' Sold as Each View this item Fits Applications

$41.99 Ships 02/22/12

844-L2379F30

351C Stock-Type Piston, .030'' Overbore Piston Dia.: 4.030'' Piston Top: Flat Top, 2-Valve Reliefs Pressed Pin Comp Ratio: 10.76:1 w/58.6cc Heads, 8.90:1 w/76.2cc Heads Ring Grooves: 5/64'', 5/64'', 3/16'' Sold as Each View this item Fits Applications

$41.99 Ships

844-L2379F40

351C Stock-Type Piston, .040'' Overbore Piston Dia.: 4.040'' Piston Top: Flat Top, 2-Valve Reliefs Pressed Pin Comp Ratio: 10.76:1 w/58.6cc Heads, 8.90:1 w/76.2cc Heads Ring Grooves: 5/64'', 5/64'', 3/16'' Sold as Each View this item Fits Applications

$41.99 Ships 02/22/12

844-L2404F30

460ci Stock-Type Piston, .030'' Overbore Piston Dia.: 4.390'' Piston Top: -22cc Dish Pressed Pin Comp Ratio: 9.79:1 w/72cc Heads, 8.01:1 w/97cc Heads Ring Grooves: 5/64'', 5/64'', 3/16'' Sold as Each View this item Fits Applications

$44.99 Ships 02/22/12

844-L2404F60

460ci Stock-Type Piston, .060'' Overbore Piston Dia.: 4.420'' Piston Top: -22cc Dish Pressed Pin Comp Ratio: 9.79:1 w/72cc Heads, 8.01:1 w/97cc Heads Ring Grooves: 5/64'', 5/64'', 3/16'' Sold as Each View this item Fits Applications

$44.99 Ships

844-L2443NF30

460ci Race Piston, .030'' Overbore Piston Dia.: 4.390'' Piston Top: 12.1cc Dome Pressed or Floating Pin Comp Ratio: 10.55:1 w/92cc Heads, 10.09:1 w/97cc Heads Ring Grooves: 5/64'', 5/64'', 3/16'' View this item Fits Applications

$55.99 Ships 02/22/12

844-L2446F30

351W Stock-Type Piston, .030'' Overbore Piston Dia.: 4.030'' Piston Top: -13.2cc Dish Pressed Pin Comp Ratio: 9.30:1 w/60.4cc Heads, 9.08:1 w/69cc Heads Ring Grooves: 5/64'', 5/64'', 3/16'' Sold as Each View this item Fits Applications

$43.99 Ships 02/22/12

844-L2446F40

351W Stock-Type Piston, .040'' Overbore Piston Dia.: 4.040'' Piston Top: -13.2cc Dish Pressed Pin Comp Ratio: 9.30:1 w/60.4cc Heads, 9.08:1 w/69cc Heads Ring Grooves: 1/16'', 1/16'', 3/16'' Sold as Each View this item Fits Applications

$43.99 Ships 02/22/12

844-L2482F

SB-Ford Piston Dia.: 4.000'' Piston Top: -2.7, Flat 4-Valve Reliefs Pressed Pin Ring Grooves: 5/64'', 5/64'', 3/16'' View this item Fits Applications

$39.99 Ships 02/22/12

844-L2482F20

SB-Ford Piston Dia.: 4.000'', .020 Overbore Piston Top: -2.7, Flat 4-Valve Reliefs Pressed Pin Ring Grooves: 5/64'', 5/64'', 3/16'' View this item Fits Applications

$39.99 Ships 02/22/12

844-L2482F30

302ci Stock-Type Piston, .030'' Overbore Piston Dia.: 4.030'' Piston Top: -2.7cc Dish, 4-Valve Reliefs Pressed Pin Comp Ratio: 9.42:1 w/60.4cc Heads, 8.55:1 w/69cc Heads Ring Grooves: 5/64'', 5/64'', 3/16'' Sold as Each View this item Fits Applications

$39.99 Ships 02/22/12

844-L2482F40

302ci Stock-Type Piston, .040'' Overbore Piston Dia.: 4.040'' Piston Top: -2.7cc Dish, 4-Valve Reliefs Pressed Pin Comp Ratio: 9.42:1 w/60.4cc Heads, 8.55:1 w/69cc Heads Ring Grooves: 5/64'', 5/64'', 3/16'' Sold as Each View this item Fits Applications

$39.99 Ships 02/22/12

844-L2488F30

1985-87 5.0L HO Stock-Type Piston, .030'' Overbore Piston Dia.: 4.030'' Piston Top: Flat Top, 4-Valve Reliefs Pressed Pin Comp Ratio: 9.99:1 w/54.5cc Heads, 8.44:1 w/69cc Heads Ring Grooves: 1.5mm, 1.5mm, 4.0mm Sold as Each View this item Fits Applications

$44.99 Ships 02/22/12

844-L2488F40

1985-87 5.0L HO Stock-Type Piston, .040'' Overbore Piston Dia.: 4.040'' Piston Top: Flat Top, 4-Valve Reliefs Pressed Pin Comp Ratio: 10.3:1 w/54.5cc Heads, 8.48:1 w/69cc Heads Ring Grooves: 1.5mm, 1.5mm, 4.0mm Sold as Each View this item Fits Applications

$44.99 Ships 02/22/12

844-WL2482F30

302ci Stock-Type Piston, .030'' Overbore Piston Dia.: 4.030'' Piston Top: +2.7cc Dish, Flat w/4-Valve Reliefs Press-fit Pin Ring Grooves: 5/64'', 5/64'', 3/16'' DurOshield® coated piston skirt Sold as Each View this item

$62.99 Ships 02/22/12