On Sat, 18 Oct 2008 19:13:19 -0400, "Eisboch" wrote:

I'd look into this project carefully.

Absolutely, really carefully.

If the 6-71 is running well I'd leave it alone. They are one of the
most reliable engines ever built.

If not it can be totally rebuilt for about $11 to 12K, far less than
your proposed project.