Thanks for all the comments. A marine trans is not an option so if it
comes to that I will definitely go a different route. I am not
looking for absolute power in this set up but instead looking fora
viable alternative to shoving a 502 in an express cruiser. My main
goals for the project would be improve performance of a small block
without the disadvantages of big block. As to the issue of fabbing a
set-up I should be able to get all the fittings I will need and mig
them all together. The cooling issue does concern me because I don't
want to build jacketed headers but I was thinking about possibly
tracing them tubing that water is pumped through and then rapping the
piping. As long as I have enough flow through the tubing the water
should stay liquid and cool the system. Since I am looking at putting
this system on a 5,000# boat loss of accelaeration will be a big deal
because I would still like to have the functionality to use it for
water sports. I understand some of the reasoning about the
acceleration problems. Is there any slippage of the prop in the water
during acceleration. If I can get it to about 1000-1500 rpms and put
some small turbine housings on the turbos I should be into boost by
this point. The small housings will kill my top end but that
shouldn't be a problem seeing as the engine probably won't see more
than 4500 RPM. Are there any technical articles on the start-up
torque and HP requirements of boats that I could read? Thanks for the
help.


572 wrote in message . ..
Turbos work well in marine applications, one of the side benefits is that they
also make great mufflers. Here is a good thread on a marine turbo project:

http://forums.hotboat.net/ubb/ultima...c;f=3;t=000483