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- Speed-Pro Powerforged Big Block Chevy Pistons
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.
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Race Pistons
Sealed Power L2383F40
Sealed Power 402ci Open Chamber Race Pistons, .040" Overbore Piston Dia.: 4.165"
$711.99
Ships on 09/26/24
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Sealed Power L2399AF30
Sealed Power 454ci Open Chamber Head Race Pistons, .030" Overbore Piston Dia.: 4.280"
$608.99
Ships on 09/26/24
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Sealed Power L2399NF40
Sealed Power 454ci Open Chamber Head Race Pistons, .040" Overbore Piston Dia.: 4.290"
$591.99
Ships on 09/26/24
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Sealed Power L2465F
Sealed Power 454ci Open Chamber Race Pistons, .000" Overbore Piston Dia.: 4.250"
$529.99
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Ships on 09/26/24
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Sealed Power L2465F30
Sealed Power 454ci Open Chamber Race Pistons, .030" Overbore Piston Dia.: 4.281"
$596.99
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Sealed Power L2465F60
Sealed Power 454ci Open Chamber Race Pistons, .060" Overbore Piston Dia.: 4.311"
$555.99
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Stock-Type Pistons
Sealed Power L2242NF40
Sealed Power 396ci Aluminum Closed Chamber Stock-Type Pistons, .040" Overbore Piston Bore: 4.134"
$639.52
Ships on 09/26/24
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Sealed Power L2242NF60
Sealed Power 396ci Aluminum Closed Chamber Stock-Type Pistons, .060" Overbore Piston Bore: 4.154"
$684.99
Ships on 09/26/24
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Sealed Power L2240NF30
Sealed Power 396ci Closed Chamber Head Stock-Type Pistons, .030" Overbore Piston Dia.: 4.124"
$531.99
Ships on 09/26/24
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Sealed Power L2240NF40
Sealed Power 396ci Closed Chamber Head Stock-Type Pistons, .040" Overbore Piston Dia.: 4.134"
$443.99
Availability Date Unknown
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Sealed Power L2240NF60
Sealed Power 396ci Closed Chamber Head Stock-Type Pistons, .060" Overbore Piston Dia.: 4.154"
$486.99
Ships on 09/26/24
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Sealed Power L2268NF30
Sealed Power 427ci Closed Chamber Stock-Type Pistons, .030" Overbore Piston Dia.: 4.280"
$689.99
Ships on 09/26/24
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Sealed Power L2349F30
Sealed Power 454ci LS6 Closed Chamber Head Pistons, .030" Overbore Piston Dia.: 4.280"
$609.99
Ships on 09/26/24
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Supercharged Pistons
Sealed Power L2453F30
Sealed Power 427ci Pistons Supercharged w/Long Rods, .030" Overbore Piston Dia.: 4.280"
$671.99
Ships on 09/26/24
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Sealed Power L2453F60
Sealed Power 427ci Pistons Supercharged w/Long Rods, .060" Overbore Piston Dia.: 4.310"
$535.99
Ships on 09/26/24
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