Hello All,
Hopefully this is ok to ask here, as I need a little guidance to build an engine for a boat I am building.
Slight bit of background...picked up a 400 block to use as a stroker project. I am in the process of building a wooden boat...27' long is the planned length. Bare hull is going to weigh about 1600-1800 pounds. Looks a bit like an old Chris craft.
I have been told the 400 stroked to a 451 or possibly a 470 will give a lot of torque, and rev more like a small block.
What I am wondering is, which of these combos will give me the best low end torque needed for the boat. I don't need it to turn to 7K, but do need stump pulling power low down.
Which engine size would you all pick for this (451,470)? It was once suggested to me to use the old 516 heads with a bigger exhaust valve, but didn't know of some of the newer, smaller aluminum heads would be a better option.
I am researching various options for what cam to use, and what EFI system I am going to plan to use. I am also going to be using a closed cooling system so that I don't have raw sea water running through the block.
Thanks for any help in this project!
