The third generation of the Accord was from 1986 to 1989.
the second generation of the Accord was from 1982 to 1985.

Based upon the above information that I obtained from a book--I don't
believe that an 85 transmission will fit into an 86 Accord. However, I
have never tried it. If you receive a post from another person that has
tried it--take their advice. However, don't invest your money or time into
the project unless you receive such advice.