Compstar – Big Block Chevy

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  • Compstar – Big Block Chevy-image
  • Compstar – Big Block Chevy

  • Compweight Big Block Chevy

    Drawing from the deep history of experience at Callies, our Compstar engineers have been able to combine the best characteristics of performance crankshaft design into the Compstar “Compweight” for Big Block Chevy applications Produced from 4340 material that is triple heat treated and stress relieved during machining. Compstar BBC Compweights will remain true during severe duty use.

    All Compstar Compweights are center counterweighted for reduced bearing loads during high RPM use. Machined with .125 journal radii and conventional straight shot oiling, these cranks offer simple durability. With all 4 rod journals drilled, Compstar BBC Compweight cranks weigh in at 75lbs or less. Compweights are fully deep case nitrided.

  • Compstar – Big Block Chevy

    Standard Features

    • Center counterweighted for reduced bearing loads during high RPM use
    • Machined with .125 journal radii
    • Conventional straight shot oiling
    • Fully deep case nitrided
  • COMPSTAR BIG BLOCK CHEVY    
    Stroke Main Pin Cammed for Rod Length Part #  
    4.250 2.750 2.200 6.385 IBP425-CS 1 pc. seal
    3.760 2.750 2.200 6.135 IB3425-CS 1 pc. seal
    4.000 2.750 2.200 6.385 BBO425-CS
    4.250 2.750 2.200 6.385 BBP425-CS  
    4.375 2.750 2.200 6.385 BBB425-CS  
    4.500 2.750 2.200 6.535 BBQ425 CS
    4.750 2.750 2.200 6.700 BBS425-CS  
    3.760  2.750 2.200 6.385 BB3425-CS   
         
    5.000 Inch Bore Spacing    
    Stroke Main Pin   Part #  
    5.500 2.750 2.200 7.750 BQ+426-CS  
  • « Back to Catalog
  • Compstar – Big Block Chevy-image
  • Compstar – Big Block Chevy

  • Compweight Big Block Chevy

    Drawing from the deep history of experience at Callies, our Compstar engineers have been able to combine the best characteristics of performance crankshaft design into the Compstar “Compweight” for Big Block Chevy applications Produced from 4340 material that is triple heat treated and stress relieved during machining. Compstar BBC Compweights will remain true during severe duty use.

    All Compstar Compweights are center counterweighted for reduced bearing loads during high RPM use. Machined with .125 journal radii and conventional straight shot oiling, these cranks offer simple durability. With all 4 rod journals drilled, Compstar BBC Compweight cranks weigh in at 75lbs or less. Compweights are fully deep case nitrided.

  • Compstar – Big Block Chevy

    Standard Features

    • Center counterweighted for reduced bearing loads during high RPM use
    • Machined with .125 journal radii
    • Conventional straight shot oiling
    • Fully deep case nitrided
  • COMPSTAR BIG BLOCK CHEVY    
    Stroke Main Pin Cammed for Rod Length Part #  
    4.250 2.750 2.200 6.385 IBP425-CS 1 pc. seal
    3.760 2.750 2.200 6.135 IB3425-CS 1 pc. seal
    4.000 2.750 2.200 6.385 BBO425-CS
    4.250 2.750 2.200 6.385 BBP425-CS  
    4.375 2.750 2.200 6.385 BBB425-CS  
    4.500 2.750 2.200 6.535 BBQ425 CS
    4.750 2.750 2.200 6.700 BBS425-CS  
    3.760  2.750 2.200 6.385 BB3425-CS   
         
    5.000 Inch Bore Spacing    
    Stroke Main Pin   Part #  
    5.500 2.750 2.200 7.750 BQ+426-CS  

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