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Old 03-04-2006, 11:08 AM
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305 350 gasket sets

new here but have a quick question,can 350 head gaskets be used ok on a mild street driven 305. Seems to be a big difference in price between 305 and 350 gasket sets and the only difference i can think of is the head gasket bore size. thanks gord

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Old 03-06-2006, 04:10 PM
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Anybody any thoughts on the problems of using the 350 gasket sets on a 305. thanks gord
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Old 03-06-2006, 04:34 PM
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Yes, like you said the bore size is different on 350's but the rest are all interchangeable except something like centerbolt valve cover gaskets.
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Old 03-06-2006, 04:47 PM
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There will be a small loss of compression with the 350 gaskets on the 305 and there will be some unburned hydrocarbons in the area where the gaskets differ. Personally, I would use the 305 head gaskets. After all, I'm sure that GM could have saved millions of dollars by using the same gasket in both, but they didn't.

tom
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Old 03-06-2006, 05:26 PM
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I wouldn't interchange head gaskets but the REST of the gaskets you could (intake, water pump, distributor, exhaust, etc....)
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