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Chevrolet Performance 25534393

LS-Series C5R Racing Cylinder Head, Bare "Cubed"

Chevrolet Performance 25534393
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Estimated ship date 01/26/18 if Ordered Today
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Chevrolet Performance 25534393 LS-Series C5R Racing Cylinder Head, Bare "Cubed" $1,445.48
LS-Series C5R Racing Cylinder Head
  • Bare "Cubed"
  • 355-T7 Aluminum
  • As-Cast Unmachined
  • Sold Individually, 1/pkg

  • Specifications:

    Manufacturer's Part Number:

    The Chevrolet Performance C5R/LSX/LS7 Racing Aluminum Cylinder Head is an unmachined "cubed" aluminum racing head designed for the professional engine or cylinder head builder. This allows a clean slate start to design the ultimate racing cylinder head for a 4.100" or larger bore LS-series racing engine. This cylinder head design has been validated in competition in the showroom stock C5R Corvette race car program, so be assured this head will live up to your demands!

  • The images shown represent a machined version of the cubed (unmachined) product. Chevrolet Performance does not supply a fully machined version of the C5R head. Images are for reference only.
  • Professional porting and machining of combustion chambers required
  • No seats or guide machining
  • C5R rectangle-port design - requires aftermarket rectangle-port intake manifolds
  • Designed for big bore (4.100" min) LS7/C5R/LSX blocks
  • 210cc "as-cast" intake ports
  • 70cc "as-cast" exhaust ports, same as production LS6
  • 30cc "as-cast" combustion chambers
  • All fasteners are metric
  • Standard LS exhaust port design
  • Capable of over 800 horsepower!

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