Our BluePrint GM engines give you brute, honest horsepower that'll leave others in your rear view mirror. Produced from hand-picked, seasoned four-bolt main blocks and precision built to exacting specifications, every engine in our lineup is ready for years of dependable performance!

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Blueprint GM Engines Lineup:

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BluePrint PREMIUM SHORTBLOCKS FEATURE:

 


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BLOCKS:

  • Hand-picked, seasoned 4-bolt main
  • 350 blocks bored .040 over
  • 454 blocks bored .060 over
  • Square and parallel decked
  • Align honed main bearing bore
  • Cylinders are sonic tested for thickness
  • Brass freeze plugs
  • Cylinders plateau honed to within .0002 -.0005 straightness and roundness

    • CRANKS:

  • BluePrint premium casting (10-10 max grind)
  • Blacklight magnufluxed
  • Stress relieved and shot peened
  • Indexed and stroke corrected during grinding
  • Oil hole chamfered for improved flow
  • Super micro-polish for superior finish


    • RODS:

  • BluePrint premium casting (10-10 max grind)
  • Blacklight magnufluxed
  • Stress relieved and shot peened
  • Indexed and stroke corrected during grinding
  • Oil hole chamfered for improved flow
  • Super micro-polish for superior finish

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    CYLINDER HEADS:

  • Hardened retainers and keepers
  • Swirl polished intake valves
  • Swirl polished exhaust valves
  • Hardened push rods


    All BluePrint GM Engines bolt up to the following GM transmissions: Powerglide, 4L60E, 4L85, TH350/400, 4L65E, 700R4, 4L80E

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