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Hi guys, I have a 1975 350 engine. The exhaust valve on #7 cylinder stuck open and bent the push rod :frown:. I still have the original 283 heads. Has anyone ever put 283 heads on a 350. Will it run alright? and how much will it effect the performance if I try putting these on?

Thanks in advance Blair
 

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Your compression ratio will go up dramadically, however runnersize & intake valves are smaller, not a good plan, but I am sure someone thinks its a good idea.
 

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Cost?

I don't think they would last very long with todays unleaded fuel. You'll burn the exhaust seats out:bowtier. :bowtier:
 
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