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427 Cylinders

To achieve 427 ci, the 6L block's cylinder sleeves are removed and replaced with 4.125-inch sleeves. They're made of cast ductile iron, and deliver a sturdy 0.075-inch wall thickness all around. The sleeves are installed using a temperature differential that allows themto slide into the bores; they're set when the aluminum block and iron sleeves are brought to temperature equilibrium.
427 Chevy Short Block Engine - Seven Liter Foundation - Tech

 To achieve 427 ci, the 6L block's cylinder sleeves are removed and replaced with 4.125-inch sleeves. They're made of cast ductile iron, and deliver a sturdy 0.075-inch wall thickness all around. The sleeves are installed using a temperature differential that allows themto slide into the bores; they're set when the aluminum block and iron sleeves are brought to temperature equilibrium.  View Related Article

 

 

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