So I needed to replace an intake valve guide. Don't ask lol. I ordered some and only had one option for intake and exhaust valves. Yes the valves are the same diameter. However the bottom of the guide is a different shape. Does anybody know if I can use the "exhaust guide" shaped guide? What is the difference? Maybe for airflow I'm guessing as the intake guide is more tapered at the bottom.
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Different shape of intake and exhaust valve guides
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Different shape of intake and exhaust valve guides
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And before somebody says the valves are different sizes. The difference is .0002 as per the ford manual. Outside diameter of the guide appears to be the same as well.Last edited by Sandm849; 03-18-2010, 12:58 AM.
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Is this for a B3? The B3 uses the same guide for intake and exhaust. The stem diameter is the same, just a different head diameter with the intake being slightly larger.
Are you saying the new guide is a different shape that the ones in the head now? This could simply be due to the replacement guide being sourced from a different supplier than the OEM guides(?).
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Ok so that would explain it. Thanks all. I was waiting for Jim to fly in!
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