Thread: will 350 heads work on a 305 and will it give it any more power

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In order to understand whether the heads will work properly you have to understand why the 350 is dying. Are the bearings going? Is it smoking? If its smoking, you have to figure out why its smoking. The heads could be going. If that's the case, then why bother sticking them on the 305. Tell us why you think the 350 is dying.

Think about it. If its the head gaskets, and you are removing the heads, you may as well replace the head gaskets instead of swapping engines. Think about what may be causing the problem. If its the lifters and/or cam, you can do that with a lot less work than an engine swap.