I have a 1971 IMP 20'foot 307 GM engine with 225hp.... I just purchased it about 3 weeks ago and when i took it out for the first time it overheated after about 5 minutes... I replaced the water pump on the engine and out of the outdrive.... I took it out today and it did the exact same thing (overheated)... what could it be causing this to happen.. any help would be great.. Thank you
1971 IMP overheating problem
- Thread starter mxw96
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