I am located in Southeast Missouri. It is currently for sale with the rare boat that it came in. The boat is more of a project than I am ready to commit to. I was thinking of building a hot rod and using that engine to power it.

Missouri. Yes, freshwater cooled. I have read that I will have to have the crank worked on because of directional drilling. Does this sound correct to you?

The boat engine can be re-purposed for vehicle use.  My understanding is that all that is needed is a car / truck camshaft, distributor, and application appropriate exhaust manifolds, oil pan, and front timing chain cover.  I'm unsure about the bellhousing.  The crankshaft needs no modification.  No FoMoCo 312 y-block crankshafts were forged.  All 312 cranks were cast iron. 

Myself, I would change-out the intake manifold and carburetors as well.  Some individuals have run the boat two carb intake manifold and carburetors on their street vehicles.  This is more for looks than function as the two single barrel carbs used on the 312 marine application don't provide great breathing ability to the engine for street and highway rpm operating range.

The boat specific components are regularly advertised on eBay, sometimes as a package, sometimes individually.

IF you're interested in selling what you have, where are you located?  Also, be aware that our Forum email and PM (personal message) system is presently working for some and not for others.  Consider posting contact information in this thread if you desire personal communication.

Hope this helps. 


NoShortcuts
a.k.a. Charlie Brown
near Syracuse, New York

easey to change,different cam also oil pump different,. cant remember if distributor is the same, probley not ascam rotation diferent on marine c c rotation. marine carbs and intake was alwayes a isue. wher do you live,was engine fresh water cooled.

Hello, I am new to these engines. I have an old boat project that I have decided is just too far gone to mess with. It has a 215 hp 312ci Interceptor in it. It is a Right Hand Rotation engine.
My question is can you convert it to a left hand rotation simply with some minor crankshaft machining and swapping out the timing set and camshaft, or is the crankshaft a whole different animal?
These cranks are getting hard to find and costly. If memory serves I believe this engine has a forged rotating assembly. It would make a really cool rat-rod engine or maybe stuff it into a Ranger
or something retarded like that...lol. Any help in this area would be greatly appreciated! Thank you...