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United Engine Machine KB120.030
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United Engine Machine Chevy 350ci Hypereutectic Pistons Flat Top

648-KB120.030

Free Shipping Estimated to ship directly from the manufacturer on 11/20/18
Need it Sooner? This similar item ships today!
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United Engine Machine Chevy 350ci Hypereutectic Pistons Flat Top $259.99
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Chevy 350ci Hypereutectic Pistons
  • Flat Top
  • 4.030'' Bore (+.030'')
  • Use w/5.700'' Connecting Rod & 3.480'' Crank Stroke
  • Comp. Ratio: 10.9/58cc; 10.4/62cc; 10.2/64cc; 9.0/76cc
  • 8/pkg
  • United Engine Machine KB120.030 Details

    Chevy 350ci

  • Flat Top Pistons
  • Use w/5.700'' Connecting Rods
  • Technical Specs:
  • Alloy: Hypereutectic 390
  • Bore: 4.030''
  • Crankshaft Stroke: 3.480''
  • Connecting Rod Length: 5.700''
  • Deck Height: 9.025''
  • Compression Height: 1.561''
  • Pin Size: 0.9272''
  • Pin Location: Centered
  • Flat Top: -7cc 2 Symmetrical Valve Reliefs
  • Intake Valve Relief: 0.280'' Depth / 2.168'' Diameter
  • Exhaust Valve Relief: 0.280'' Depth / 2.168'' Diameter
  • Top Landing Height: 0.275''
  • Ring Grooves: 5/64'' Top; 5/64'' Middle; 3/16'' Bottom
  • Gram Weight: 535/145
  • Compression Ratio: 10.9:1 w/58cc Heads; 10.4:1 w/62cc Heads; 10.2:1 w/64cc; 9.0:1 w/76cc Heads

  • Specifications:

    Bore (in.)
    4.03
    Bore (mm)
    102.362
    Compression Distance (in.)
    1.561
    Pin Diameter (in.)
    0.927
    Piston Head Volume (cc)
    7
    Piston Material
    Hypereutectic aluminum
    Piston Ring Thickness (in.)
    5/64 x 5/64 x 3/16
    Piston Style
    Flat top, with two valve reliefs
    Quantity
    Sold as a set of 8
    Wrist Pin Style
    Press-fit or floating
    Manufacturer's Part Number:
    KB120.030

    100% CNC Machined Pistons

    New high silicon alloys and diamond tooling have give Keith Black designers the material and equipment for performance breakthroughs in engine design. KB piston are 100% CNC machined and T-6 heat treated from 16%-18% silcon Hypereutectic alloy. Features include drilled oil returns and pin oil supply, .072'' spiral wound retaining ring, 100% diamond turned, compensated high strength ring lands, high top ring location, 360° pressure pin oiling, diamond honed pin hole and lightweight rigid rib skirt design.

    Features:

    • 390 Hypereutectic alloy with 16% Silicon
    • Fully machined crowns and valve reliefs
    • Drilled oil drain backs
    • Full floating wrist pins
    • Triple wound spiral locks
    • Reflective alloy allows 2% power increase
    • Quench dome technology minimizes deterioration
    • Zero deck quench designs
    • Sold in Sets (except when noted as 1 piston per package)


      Click here for reference guide to piston top designs

    KB120.030 - UEM Pistons KB Signature Series Hypereutectic Small Block Chevy Pistons is rated 5.0 out of 5 by 1.
    Rated 5 out of 5 by from Best part-best price Best pistons for the money . On sale, quick delivery, great selection
    Date published: 2015-06-22
    • y_2018, m_11, d_17, h_15
    • bvseo_bulk, prod_bvrr, vn_bulk_2.0.9
    • cp_1, bvpage1
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    • loc_en_US, sid_10001_10001_89336, prod, sort_[SortEntry(order=RATING, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
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