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A Design Study in Aluminum Castings - GM Cylinder Block                                          

Cylinder Block Performance 

The cylinder block has to withstand high cycle fatigue stresses, thermal strains, and aggressive wear conditions over the full life of the engine.  
The typical performance requirements for the cylinder block cast in lost foam with aluminum are --

  • Ultimate Tensile Strength = 35 ksi / 245 MPa 

  • Yield Stress = 31 ksi / 215 MPa

  • Elongation = 1.6%

  • Brinell Hardness = 80 BHN

  • Fatigue Strength ( 10^8 cycles) = 8.5 ksi / 60 MPa

  • Pressure tightness = Excellent

  • Machinability = Good

Power Train with Engine and Transmission


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Last Modified:August, 2004 by STG

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