9A1 (MA1)

wikipedia:MA1

• 2.7 L MA1.22 flat-6
• 3.4 L MA1.23 flat-6
• 3.8 L MA1.24 flat-6

• Alusil engine block
• Cylinder bore scoring: https://lnengineering.com/products/watercooled-porsche-cylinders-sleeves-and-pistons/9a1-2009-boxster-cayman-911.html?limit=all

See also

• List of Porsche engines, M96, M97, MA1, Alusil, SUMEbore