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Garage Sale - KB Chevy 383 Hypereutectic Pistons, Flat Top, 6.0 Rod, .030 Over
Garage Sale - KB Chevy 383 Hypereutectic Pistons, Flat Top, 6.0 Rod, .030 Over

Garage Sale - KB Chevy 383 Hypereutectic Pistons, Flat Top, 6.0 Rod, .030 Over

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Garage Sale - KB Chevy 383 Hypereutectic Pistons, Flat Top, 6.0 Rod, .030 Over
Garage Sale - KB Chevy 383 Hypereutectic Pistons, Flat Top, 6.0 Rod, .030 Over
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Part # UP51371
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Important Messages:

  • This product is discontinued.
  • This item ships directly from the manufacturer. It may take an additional business days for KB Pistons to ship this item.
  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
  • This item ships via Ground Shipping only. Expedited and Air shipping options are not available.
  • This item UP51371 is made to order. It will be shipped from our warehouse when it is produced.

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These pistons are garage sale priced because they have been balanced to a rotating assembly. 

  No Warranty, No Returns On Garage Sale Items

Keith Black Hypereutectic pistons are favored for their improved power and reduced scuffing. The unique design & manufacturing processes combine to produce a rigid piston, which will rock less in the bore improving ring seal. These T-5 heat treated pistons also offer reduced thermal expansion, which allows you to run tighter clearances and allows the piston rings to seal better and minimize blow-by.

  • 390 Hypereutectic alloy
  • 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
  • Lightweight wrist pins

For S/B Chevy 383 c.i. (4.000" bore x 3.75" stroke).

Ring Style Chart (GIF)

474-122 Instructions (PDF)

Specs


  • Sold in Quantity:
    Set
    Piston Diameter:
    4.030
    Stroke:
    3.75
    Wrist Pin Diameter:
    .9272
    Piston Ring Style:
    C
    Connecting Rod Length:
    6.000"
    Piston Weight:
    425
    Wrist Pin Weight:
    145
    Piston Style:
    Flat Top w/ 2 valve reliefs
    Piston Material:
    Hypereutectic Aluminum
    Garage Sale:
    No
    Compression 58cc =:
    11.9 : 1
    Compression 64cc =:
    10.9 : 1
    Compression 76cc =:
    9.6 : 1
  • Pin Diameter -  0.9272
Some parts are not legal for use in California or other states with similar laws/regulations

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