I had a buddy w/a 64 & sm blk 400 back in high school, snapped pumps left & right. His record was 13 water pumps in less than a year. 3.73s & a heavy foot was the cause. He finally went to a lightweight aftermarket plastic fan, no more trouble. I would go electric, we just did on my bro's truck, its unbelievable the revs it freed up by removing the fan. Brian
