While you do X, you might as well do Y - a tale of woe. - Page 2 - Miata Turbo Forum - Boost cars, acquire cats.

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Old 08-15-2013, 10:42 PM   #21
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I would never, ever, open up a perfectly running engine unless I was refreshing or building it.

Just my .02
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Old 08-15-2013, 11:21 PM   #22
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Run all of it , then you can do the head gasket ,rods and pistons etc. all at once.
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Old 08-16-2013, 12:12 AM   #23
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Originally Posted by fooger03 View Post

But if you DO do a coolant reroute - well, since you've got the head off, you might as well get bigger valves, and since the valves are out, you might as well replace the valve seals, and if you do all that, you have to shim the lifters. Since it's going to a machine shop anyways for bigger valves, you might as well get it gasket matched , ported, and polished....
This happened to me. Well, not quite, I had burned exhaust valves, so the head had to come off, and I had to buy new valves. And the oversize ones cost LESS than stock valves! And FM's machine shop charged LESS than the ones in California, so I sent it to them. And as long as it was there, well, I pretty much had to get it ported & polished & unshrouded etc etc, right?

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