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Vehicle Info NeededSEALED POWERPART NUMBER: 844-L2240NF40
396ci Closed Chamber Head Stock-Type Pistons, .040" Overbore Piston Dia.: 4.134"
$75310
Ships on 01/20/2027
Lowest Price GuaranteeStock-Type Pistons
- 396ci Closed Chamber Head Stock-Type Pistons, .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''
- 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 Height5.3
Package Width10.2
Package Length20.5
Weight17.15 PG
Part CategoryPerformance Parts
QuantitySet of 8
Part FitmentSemi Universal
Vendor Part NumberL2240NF40
Package Qty1
Package TypeEA
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