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Part Number:
UEM-KB125-020

Keith Black Pistons KB125-020 Fits SBC 400 Flat Top 7cc Bore 4.145

Fits SB Chevy 400, Bore 4.145, Stroke 3.750, Rod Length 5.700, Flat Top 7cc, 2 Valve Relief, Compression Height 1.433, Set of 8 Pistons

Special Price $443.32 Regular Price $450.07
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⚠ PROP 65 WARNING
⚠ WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer. Please contact us to obtain a list of harmful chemicals. For more information, go to www.P65Warnings.ca.gov.
Keith Black Hypereutectic pistons are a great choice for high performance marine, drag race, circle track, street or towing application builds. The low expansion 390 alloy with 16 percent silicon allows for a tighter piston to wall running clearance.
  • Fully machined head and valve reliefs
  • Triple Spiral Lock Rings
  • CNC machined pin bores produce straight and accurately sized bores
  • Accumulator Groove aids with compression ring seal
  • Machined in Oil Returns
  • Diamond Finished Skirts
  • Mini Grooves to reduce scuffing and overheating
  • Wrist pins and spiral lock included
  • 5/64 x 5/64 x 3/16 rings not included
  • Compression Ratio 58cc 12.3:1, 62cc 11.7:1, 64cc 11.4:1, 76cc 10.0:1
  • Advertised piston weight 578 grams, 145 gram wrist pin
  • OE Deck Height 9.025"
  • Note: Standard bore size is 4.125
  • Note: Centered Pin
  • More Information
    CNC Part Number UEM-KB125-020
    Price $450.07
    Manufacturer's Part Number KB125-020
    Brands Keith Black
    Part Types Engine Piston
    Departments Parts
    Vehicle Make Chevy SB
    Bore Size 4.145
    Crankshaft Stroke 3.750
    Rod Length 5.700
    Piston Type Flat Top
    Compression Height 1.433
    Piston Material Hypereutectic
    Piston Ring Size 5/64 5/64 3/16
    Wrist Pin Size 0.927
    Custom Notices ⚠ PROP 65 WARNING
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