nextboat1
Petty Officer 3rd Class
- Joined
- Mar 17, 2013
- Messages
- 82
Hi all!
My purpose for starting this topic is two fold. I would like to chronicle my 350 build and gain knowledge from of all my fellow IBOATers. To start, the engine is being built for my 1998 Rinker 232 Captiva Bowrider. It is equipped with an Alpha Gen II drive (1.47) and weighs in at just shy of 4100lbs. The engine I plan to use is a late 70's or early 80's (been awhile since I pulled the casting #) 350 four bolt main block. I originally had this engine built for another of my projects, but it has sat on the stand since and is ready to find a more suitable home. The crank is stock and has been machined and balanced with new bearings. It has a double roller timing set, and .030 over speed pro hypereutectic flat top pistons with four valve reliefs for a total of 5cc's. The freeze plugs are brass. I am curious as to what cam and heads to run on this bottom end set up. The cam currently installed is way to aggressive for a marine application. My goal is a modest 325 horsepower or so, as I do not want to push my alpha drive too hard. I would also like to be able to run on 87 octane gas, as that is what is available around here at the local marinas. My plan is to build a solid reliable engine, rather than a high horsepower money sucker. I realize that the flat tops will limit my options, but would rather not change them out if not needed. Any advice will be greatly appreciated.
My purpose for starting this topic is two fold. I would like to chronicle my 350 build and gain knowledge from of all my fellow IBOATers. To start, the engine is being built for my 1998 Rinker 232 Captiva Bowrider. It is equipped with an Alpha Gen II drive (1.47) and weighs in at just shy of 4100lbs. The engine I plan to use is a late 70's or early 80's (been awhile since I pulled the casting #) 350 four bolt main block. I originally had this engine built for another of my projects, but it has sat on the stand since and is ready to find a more suitable home. The crank is stock and has been machined and balanced with new bearings. It has a double roller timing set, and .030 over speed pro hypereutectic flat top pistons with four valve reliefs for a total of 5cc's. The freeze plugs are brass. I am curious as to what cam and heads to run on this bottom end set up. The cam currently installed is way to aggressive for a marine application. My goal is a modest 325 horsepower or so, as I do not want to push my alpha drive too hard. I would also like to be able to run on 87 octane gas, as that is what is available around here at the local marinas. My plan is to build a solid reliable engine, rather than a high horsepower money sucker. I realize that the flat tops will limit my options, but would rather not change them out if not needed. Any advice will be greatly appreciated.