427ci Pistons Supercharged w/Long Rods Piston Dia.: 4.250"
InfoVehicle Info Needed
SEALED POWERPART NUMBER: 844-L2453F

427ci Pistons Supercharged w/Long Rods Piston Dia.: 4.250"

$53599
ShippingShips on 11/24/2026
Lowest PriceLowest Price Guarantee

Items You Need

32-Blade Feeler Gauge Kit 0.0015" to 0.035" (0.038mm to 0.889mm)

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32-Blade Feeler Gauge Kit 0.0015" to 0.035" (0.038mm to 0.889mm)

Part Number : 555-80500
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Break-In/Engine Oil Supplement [12 oz. Bottle]

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Break-In/Engine Oil Supplement [12 oz. Bottle]

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Supercharged Pistons
    427ci Piston Supercharged w/Long Rods
  • Piston Dia.: 4.250''
  • Piston Top: -7.96cc Dish
  • Pressed or Floating Pin
  • Comp Ratio: 8.15:1 w/100.9cc Heads, 7.03:1 w/124cc 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 Height0.74
Package Width10.8
Package Length21.3
Weight2.0814 PG
Part CategoryPerformance Parts
QuantitySet of 8
Vendor Part NumberBSEL2453F
Package Qty1
Package TypeEA
Some parts are not legal for use in California or other states with similar laws / regulations
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