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Vehicle Info NeededSEALED POWERPART NUMBER: 844-L2268NF30
427ci Closed Chamber Stock-Type Pistons, .030" Overbore Piston Dia.: 4.280"
$1,06392
Ships on 09/25/2026
Lowest Price GuaranteeStock-Type Pistons
- 427ci Closed Chamber Stock-Type Pistons, .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''
- Set of 8
- 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.
Part TypePiston
Product LineSpeed-Pro Powerforged Big Block Chevy Pistons
BrandSEALED POWER
Package Height3.1
Package Width4.6
Package Length5.6
Weight2.0762 PG
Part CategoryPerformance Parts
QuantitySet of 8
Part FitmentSemi Universal
Vendor Part NumberL2268NF30
Package Qty1
Package TypeEA
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