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Vehicle Info NeededSEALED POWERPART NUMBER: 844-L2465F
454ci Open Chamber Race Pistons, .000" Overbore Piston Dia.: 4.250"
$80558
Ships on 09/25/2026
Lowest Price GuaranteeRace Pistons
- 454ci Open Chamber Race Pistons, .000'' Overbore
- Piston Dia.: 4.250''
- 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''
- 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 Height5.1
Package Width10.2
Package Length20.4
Weight15.75 PG
Part CategoryPerformance Parts
QuantitySet of 8
Vendor Part NumberL2465F
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
