Tally so far...
#1 Horizontal
Orig Green, brass flywheels, briggs crank
#2 Updside down.
Orig black, breass, briggs
Gil -> Doug -> Jacktown
#3 Upright
Orig blue_
Brass, Modified Gil repainted red, new fuel, exhaust.
Gil->Doug->Jactown
#4 Is this right?
Upright, similar to #3
Gil
#5 Horizontal
Orig Powder blue, repainted red.
Briggs, Aluminum flywheels wheels, pto," Ice cream maker"
#6 Upside down proto
Powder Blue, brass,briggs
#7 Square horizontal
Blue, brass, briggs, Oil shield
Doug
#8 Horizontal
Green, briiggs
Modified by doug , viton rings
FlyWheels Where these cast iron or aluminum?
Sold by Doug->Jacktown