NOT cool well without a thermostat. it is a bypass design in which if the thermostat is removed only half of the water will go to the radiator. the other half will recirculate back tothe block without going to the radiator. so go get the correct thremostat, a german brand, please and install it and see if it still overheats. if it does then you have other problems. but do the thermostat first because you wont know anything until you do.

tom w

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.