posted April 29, 2004 05:47 PM <br />--------------------------------------------------------------------------------<br />I have a 1992 mercruiser 3.0L 115hp I/O 18 foot chaparral. I have the opportunity to buy a rebuilt LX head from a 1994 maxxum. I need to know what I need to do to complete this swap. Do I need a new manifold and carburetor etc?<br /><br />The 115hp rating was on the boats title. I emailed chaparral and they replied this morning and stated that the HP was 125. Anyway, the engine I presently have is the 181 CID GM motor. The engine the new head comes from is also the 181 CID GM motor but it is the LX version rated at 135hp at the prop. I was told that the manifolds are different but they didn't know about the carburetor or other components. Any helpwould be appreciated.<br /><br />Thanks again,<br />David