Original Message
360->428 sonic update
By Pete - 11/21/2002 9:02:48 PM; IP 65.56.119.224
some time ago I mentioned that I had my 360 block sonic checked and it passed for being able to bore .080 over. I now know what the specs were. No cylinders were thinner than .170 after the boring. This is a standard 360 block, from a 1969 F-100. Obviously this block had plenty of meat. It is possible!!
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360->428 sonic update -- Pete, 11/21/2002
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