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Old 02-18-2012, 12:54 PM
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Opening 283 heads for 1.940 valves

A friend opened a pair 283 heads for 1.940 valves. After bolting on the engine (a 350) the heads worked just fine. The question is: will it last? I don't know if the opening process was detrimental to the heads strenght. Maybe too much material was removed...

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Old 02-18-2012, 03:27 PM
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Without any pictures, how can we tell? If the seats were correctly cut and valves/chambers were professionally unshrouded they should be ok.
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Old 02-18-2012, 03:53 PM
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Quote:
Originally Posted by BOBCRMAN@aol.com
Without any pictures, how can we tell? If the seats were correctly cut and valves/chambers were professionally unshrouded they should be ok.
Bob, no pics but I saw the heads in the machine shop and they looked real nice. I just don't know if the thickness of the valve seat area allows the grinding for the bigger valves.
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