Quote Originally Posted by OneBadInjun View Post
496's won't bolt in place of where 454's were. The exhaust hole placement in the transom for thru-hull exhaust are different. 496's are wider. If the 454's were at 34" or 35" centers, then the 496's will be touching each other.

I have heard that before but several have said the opposite. Do you have direct experience on this?

The boat is on 34" centers.

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