I was on here a few months ago, which no one will probably remember. anyways, i have a 1969 351w block. my rotating assembly is from a 1985 351w. i was told on this site that I could still use my rotating assembly, but i had to get some machine work to my crank. 69 cranks (from what i was told) had oil slingers and a 2 piece rear main. 85's had one peice rear mains, and no oil slingers. I understand this, but everyone else i have talked to (off this site) has no idea what i am talking about. a man at a crank shop told me all i could do is hope it wouldn't leak. well that's bull-ish to me. i want a honest, no bs answer. can i use it or no. i do not care if i have to buy an updated seal or whatever it takes, i just want to build my motor, the right way without any leaks. CAN SOMEONE PLEASE HELP ME???????
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