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350 Hypereutectic Piston For use with Standard Bore
InfoVehicle Info Needed
UNITED ENGINE MACHINEPART NUMBER: 648-9902HC.000

350 Hypereutectic Piston For use with Standard Bore

$33437
ShippingShips on 11/13/2026
Lowest PriceLowest Price Guarantee

Chevy 350ci Pistons
    350 Hypereutectic Piston
  • For use with Standard Bore
  • Piston diameter: 4.000''
    Coated Skirts for Less Friction
    These Claimer pistons are ideal for racers on a budget: a cross between the economical Silvolite line & the high-performance KB line. By combining a hypereutectic alloy with the permanent mold process, the piston is thermally-efficient and strong yet lightweight. Tighter piston-to-wall clearances offer better ring seal & longevity.

    Shared Specifications
  • Piston Top: Flat top 2-valve relief
  • Ring Grooves: 5/64", 5/64", 3/16"
  • Press-fit pin
  • Sold 1/pkg

    Spec Variations
  • Chevy 350 Pistons
    For use with 5.7" rods
    11.6:1 compression ratio with 55cc heads; 9.1:1 compression ratio with 76cc heads
  • Chevy 400 Pistons
    For use with 5.565" rods
    13.1:1 compression ratio with 55cc heads; 10.3:1 compression ratio with 76cc heads
Product LineClaimer Hypereutectic Pistons
BrandUNITED ENGINE MACHINE
Package Height2.5
Package Width4.1
Package Length4.2
Weight1.35 PG
Part CategoryPerformance Parts
Vendor Part Number9902HC.STD
Package Qty1
Package TypeEA
Please click here to download the instructions PDF file
Some parts are not legal for use in California or other states with similar laws / regulations
p65 warning