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Product Discontinued
SEALED POWERPART NUMBER: 844-L2465F30-1
454ci Open Chamber Race Piston, .030" Overbore Piston Dia.: 4.281"
Currently Unavailable
This product is no longer available. Please call customer service for assistance at 1-800-345-4545.
Race Pistons
- Powerforged Piston
- Big Block Chevy 454 ci Open Chamber
- 4.280 in. Bore
- Dome +25.700 cc Volume
- Pressed Pin
- Comp Ratio: 11.31:1 w/100.9 cc Heads, 9.61:1 w/119 cc Heads
- Ring Grooves: 5/64, 5/64, 3/16 in.
- Sold Individually
- 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
Weight1.9 PG
Part CategoryPerformance Parts
Piston Head Volume (Cc)-27.1
Dome Height0.27 in (6.858 mm)
Compression Distance1.64 in (41.656 mm)
Piston Ring Thickness (In.)5/64 x 5/64 x 3/16
Wrist Pin StylePress-fit
QuantitySold as a set of 8
Piston MaterialForged aluminum
Pin Diameter0.989 in (25.1 mm)
Bore (Mm)108.712
Piston StyleDome, with single valve relief
Bore4.28 in (108.712 mm)
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
