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How Do I Find Specifications for a Discontinued BluePrint Engine?

If you own, service, or are purchasing a used BluePrint engine that is no longer listed on the current website, you may still need access to critical specifications such as compression ratio, camshaft specifications, timing recommendations, spark plug information, oil requirements, and component part numbers. This article applies to discontinued and legacy BluePrint engine assemblies across GM, Ford, Chrysler, LS, and specialty engine families.

 What Information Should I Provide?

The fastest way to identify a discontinued engine is to provide the engine serial number and engine part number (if available). Helpful information includes:

  • Engine serial number
  • Engine part number
  • Original dyno sheet
  • Original invoice or warranty paperwork
  • Photos of engine identification tags
  • Casting numbers from major components
What Specifications Can Be Retrieved? Depending on available records, BluePrint may be able to provide:
  • Displacement
  • Compression ratio
  • Camshaft specifications
  • Cylinder head information
  • Horsepower and torque ratings
  • Oil capacity
  • Spark plug recommendations
  • Timing recommendations
  • Replacement part information
What If My Engine Is No Longer Listed Online? A discontinued engine may no longer have an active product page, but historical records may still be available through BluePrint support. Do not assume specifications based solely on engine displacement. Similar engines may use different:
  • Camshafts
  • Cylinder heads
  • Pistons
  • Compression ratios
  • Fuel requirements

 Frequently Asked Questions

My engine is discontinued. Can I still get specifications?

Yes. In many cases, BluePrint can identify the engine and provide available historical specifications.

What is the most important piece of information?

The engine serial number.

Can I order replacement parts for a discontinued engine?

Often yes. Provide the engine serial number so the correct parts can be identified.

Can I use specs from a current engine with the same displacement?

No. Specifications can vary significantly between engine combinations