Repower, rebuild or Not?

drewpster

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Joined
Oct 17, 2006
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2,059
I'm not sure if I am posting in the right place so forgive the mistake if I am.
I am starting to research my options concerning the power plant in my little cruiser. I need some advice concerning which direction to go.

I currently have a Chrysler inboard with a Velvet drive transmission. The engine is a little 273m and the boat seems a little underpowered. It runs good but considering the engine's age and the relative rarity of parts compared to other engines I am on the fence on whether I should rebuild it or chuck it and start with another make. It has been rebuilt at least once already.

I would like to use the transmission I have now and stay close on horse power. However I think the boat could benefit from a larger wheel.
If I want a little more power what do I need to factor in concerning the boats design, hull type or total weight? I want the boat have a little more power to improve maneuvering. And if I can improve fuel efficiency, that's a definite plus. Speed is not as much a factor as power but if more speed comes with the package that's all the better.

I also have some concerns about the engine space. How would I go about getting measurements of complete engines to help with the decision?

There are some pictures of the boat in my signature line. I believe it would be called a displacement hull and I was told the boat can weight as much as 5000 lbs. But I have no way of knowing as I have never had it weighed. She is 24' in length and is made of wood and fiberglass. She is true inboard so if I can get away with using the factory log, shaft and strut I would like to.

I am also planning to replace the engine stringers so the factory placement and design can be modified if needs dictate with a new engine. Any advice would be appreciated especially if you have gone through a repower yourself.
 
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