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Part Number:
CNC-90008-CSR

CNC Competition RHS LS 427 Short Block, Compstar Crank, JE 11:7:1 Pistons, LS7

LS 427 Stroker, RHS Aluminum Block, Compstar 4340 Crankshaft, Compstar H Beam Rods, JE 11.7:1 Flat Top Pistons, Fits LS7 Style Heads

$11,124.95
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3% CREDIT PAYMENT FEE
An additional 3% fee will be charged for applicable engines purchased via credit card, PayPal or affirm.
FREIGHT CHARGE
This part will be shipped via truck freight and additional shipping charges will apply. Multiple parts shipped via freight in an order may increase the total shipping amount.
⚠ 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.

CNC-Motorsports, has quickly raised the bar to a new level in offering high quality short blocks at an affordable price. Our short blocks have become a huge hit among racers and performance enthusiast all over the world. We have the ability to custom build you just about any combination the way you want it. All our short blocks are 100% machined, CNC Machined and blue-printed to our race wining specs. We never cut corners like others just to lessen the price.

  • Compstar 4340 forged steel crankshaft (4.000 Stroke) **Internal Balance**
  • Compstar H-Beam connecting rods (6.125 Length)
  • JE forged -2cc flat top pistons (Assymetrical)
  • High performance plasma moly piston ring set
  • ACL/Clevite 77 Rod and Main Bearings
  • RHS Aluminum block

    Compression Ratio:
  • 70cc 11.7:1

    Professionally Machined, Balanced, Assembled and blue printed in house by CNC-Motorsports. Balance card and blue print sheet will be provided to the customer. We can custom build any short block assembly to meet your needs.
  • More Information
    CNC Part Number CNC-90008-CSR
    Price $11,124.95
    Manufacturer's Part Number 90008-CSR
    Brands Compstar, JE, RHS
    Part Types Short Block Engine
    Departments Parts
    Vehicle Make Chevy LS
    Connecting Rod Manufacturer Compstar
    Crankshaft Manufacturer Compstar
    Piston Brand JE
    Piston Type Flat Top
    Block Material Aluminum
    Block Brand RHS
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