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Product Discontinued
SEALED POWERPART NUMBER: 844-L2383F40
402ci Open Chamber Race Pistons, .040" Overbore Piston Dia.: 4.165"
Currently Unavailable
This product is no longer available. Please call customer service for assistance at 1-800-345-4545.
Race Pistons
- 402ci Open Chamber Race Pistons, .040'' Overbore
- Piston Dia.: 4.165''
- Piston Top: 13.9cc Dome
- Pressed Pin
- Comp Ratio: 9.29:1 w/100.9cc Heads, 8.03:1 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 Height4.5
Package Width4.5
Package Length4.8
Weight2.25 PG
Part CategoryPerformance Parts
QuantitySet of 8
Part FitmentSemi Universal
Vendor Part NumberL2383F40
Package Qty1
Package TypeEA
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