350/465 Dowel pin location.
In the pile of parts I currently have is a cast 465 bell housing that will be mounted I have a rebuilt 465 that is been adapted to a Dana 18 (from Herm)with all bells and whistles.
I plan on using a stock or very mildly built 350 and converting it to propane.
The reason I am using a 350 is so I can run the engine on its side and such and when it goes out I can easily replace it with another for 1/3 the cost of rebuilding say a Buick 225. Not to mention I can find a rebuilt 350 easily, have it waiting in a corner somewhere, and swap it out in a weekend instead of having the down time of rebuilding a Buick 225.
What I keep racking my brain over is the dowel pins. And what years to look for a recently rebuilt 350 (less then 30k) that will have the dowel pins to mount the cast 465 bell housing to flawlessly so I do not need to machine the block in any way.
I am probably over thinking this and the dowel pins may slide out and be interchangeable in some blocks. I just don't want to find myself in a situation where I need to machine the block because it was not meant to mate to the 465 bell.
What year/style(Truck/car etc)350 blocks will mate to the cast 465 bell flawlessly?