huhges lifters....again

moper said

Try more preload. But some blocks just have worn lifter bores and some hydraulic lifters may be a little noisey. If it performs well and no other signs of problems exist then it's fine.

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don`t get overly concerned if everything checks out right. tighten them down a hair more than they recommend (not much), and don`t worry about it. I had the same problem w/ a 406 sbc. tightening them down a hair helped, but I ended up going to a solid roller and it was quieter !