A 383 Chevy is just a standard 5.7 block, with a 3.75 stroke crankshaft and
special pistons. The 5.0 and 5.7 use a 3.48 stroke. Externally it is
identical to the 5.0-5.7. As far as torque goes, yes it is more than an
alpha 1 is rated for. But as long as you don't abuse it, it could last for
years. In any case, if you increase the power enough to make any real
difference on a 5.0 or 5.7, your in the same position. A longer stroke is
what is going to give you more torque at usable rpms. A 383 with a nice
conservative 211-221 @ .050 cam and 9.6 compression ratio will give you fuel
efficiency and you can probably increase prop pitch 4".
Check out the combos at http://www.ryanscarpage.50megs.com/combos6.html
Combo 45 ought to get it done.

Rich

wrote in message
ps.com...

Hi Rich,

That 383 Chevy sure sounds great -

But even if by miracle it could be mated to a Mercruiser Sterndrive
(anyone hear of that?) it would have way too much torque for AlphaOne
drives.

Thanks, but it looks like I'm back to the drawing board.

(the other) Rich