LT1-LT4 Modifications 1993-97 Gen II Small Block V8

204 valves??

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Old 08-31-2011, 05:53 AM
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Question 204 valves??

Any one ever heard of doing this
Old 08-31-2011, 06:11 AM
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You're going to have to provide FAR more information...
Old 08-31-2011, 06:26 AM
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well i sent a set off to the machine shop for the usuall valve job the guy doing the heads said that he could up the size of the valves to 204's.Ive seen where AFI and LE only go to 202's.was getting some input before I unknowingly f up a good set of head's
Old 08-31-2011, 06:46 AM
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overkill, not to mention valve shrouding and that I don't think thats possible in stock castings anyways, 2.00 is the biggest you can go in stock castings w/o modifying anything, 2.02's need to be back cut to seat properly.
Old 08-31-2011, 06:56 AM
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As mentioned 2.00" is fine for LT1 stock castings.




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