Part Number:
CNC-1157-CS

SB Chevy 427/434 Compstar Rotating Assembly - 15.2:1 JE Hollow Dome Gas Ported Pistons

SB Chevy 427 434, Rotating Assembly, Compstar 4340 Forged Crankshaft 4.000 Stroke, 350 or 400 Main, 6.000 H Beam Rods, JE 10.8cc Hollow Dome Gas Ported Pistons, 2-PC Seal

$3,329.95
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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.
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Callies Compstar rotating assembly kits offer quality and reliability you can count on. Featuring fully forged crankshafts, connecting rods and pistons these kits are designed to make horsepower. Conservatively rated to support 1000 horsepower applications. Higher horsepower applications please contact us for kit option upgrades.

  • Compstar 4340 forged steel crankshaft, 2pc rear main seal
  • Compstar 4340 forged steel H beam connecting rods with ARP2000 rod bolts
  • JE 2618 forged 10.8cc Hollow Dome pistons, Lateral Gas ported, .170 wall pins
  • Total Seal AP Steel Rings, .043 Steel top, .043 Napier 2nd, Standard 3.0mm oil rings
  • H series performance main and rod bearings
  • Rotating assembly kit has not been balanced, balancing required before installation
  • Compression Ratio with 58cc 16.7:1
  • Compression Ratio with 64cc 15.2:1
  • Compression Ratio with 76cc 12.9:1
  • Pistons fit 23 degree heads
  • More Information
    CNC Part Number CNC-1157-CS
    Price $3,329.95
    Sold As Kit
    Manufacturer's Part Number 1157-CS
    Brands Compstar, JE
    Part Types Engine Rotating Assembly Kit
    Departments Parts
    Vehicle Make Chevy SB
    Balanced Assembly No
    Balance Type Internal
    Crankshaft Material 4340 Forged Steel
    Crankshaft Stroke 4.000
    Piston Brand JE
    Piston Type Dome
    Rod Length 6.000
    Rear Main Seal 2 Piece
    Piston Material Forged
    Custom Notices ⚠ PROP 65 WARNING
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