Mercruiser 470's

[calvert95628]

I have a 1980 SeaRay with dual Mercruiser 470 4 cylinder motors. They are in need of rebuilding or replacement. If I replace them, what more modern motor can I use; i.e., GM, Ford, or what? Is there an engine that will bolt up to the outdrives (Alpha 1 ?) without much, if any, modifications needed to the hull/mounts/cables? Thanks in advance for any assistance given.<br /><br />Bob

 

[DJ]

Re: Mercruiser 470's

Calvert,<br /><br />3.0L four cylinders should bolt up, but they are only rated at 135 hp. 4.3L V-6's should also bolt up, but I doubt you have the spacing to allow V-series engines.