Quote:
Originally Posted by Michael_Velling
Hello,
And now....
The cylinder bore must be 0,0035 to 0,0040 larger then the new pistons.
Correct?
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You got it.
Modern engines have water jackets that are the length of the cylinder. Model A engines only have water jackets for part of the cylinder, necessitating that the pistons in a Model A engine require more clearance than a modern engine.