[USER=843]@hoover719[/USER]
I wish I knew how to tell which models used what you describe. Most popular among the bunch was the SC886. The two with the headlight were the SC888 and SC899, the latter being wide-track.
Again this brochure dates to 1986. The SC886 and SC888 both used a 6.5-amp motor while the SC899 uses a 6.7-amp motor. But again, I wish I knew how to tell between a "pancake" motor and a "blender" motor, since all of these (seem to) look alike.
~Ben