I am looking to get some advice about my engine plan for my boat.
First my plan.
I have a SBC 350 in my boat now. It needs more power and my current 350 has way too much end thrust play in the crank. I am going to put a BBC in the next summer or two. I dont have the cash (new house) to build a BBC this year but I want to put the blower on this year and learn a little more about boost before i spend big coin on the 496 low end.
I have a 671 blower. I have a SBC and BBC intake manifold for the 671.
I would like to put a 400SBC in for this summer and then swap out to a 496 in years to come.
So, I AM going to install a 400 before summer with a blower on top.
Get a decent used engine and put a set of decent heads on and just run it? A stock 400 is going to have a stock CR in the same range as a blower motor.
do I need to rebuild it and at least get forged pistons and a good crank?
Its not getting raced or beat badly, just needs to run all summer on 92 octane.
I would prefer to run a good used engine and put save cash for the big block swap.
Is the 400 balancer and flexplate going to open up any problems?
I know 400s have steam holes in the heads/block. Can I just drill out a set of normal heads and boltem on?
I would like to keep this as cheap and simple as possible.
(please refrain from telling me to just build the BBC and be done with it, its just not in the budget yet)