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Reply to "Boring 351C"

I talked to Pat Michal a few weeks ago about a couple of things. One was the headers, the other was he purchased what he calls a four axis boring machine.

He was saying that Jack Rousche just bought one and there are only a few machines around because of the cost of it.

He was saying that this machine is showing on several blocks that he did that the bore angle to the crankshaft center line is typically off about one degree.

This machine is capable of correcting it to .00001" according to him.

I just mention this because of these weird failures that have no other obvious causes?

He explained what the fourth axis was but not having the machine in front of me I understood it but it went in one ear and out the other.

He spoke of not overboring the block also and talked about going only a couple of thousands over standard where possible.

He DIDN'T say what it costs to bore the block on his machine though.
Last edited by panteradoug
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