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  1. Steamer

    F.5 head job - questions about valve stem seals, lifters/pushrods

    The bottom of the lifters extend out of the lifter bores and that portion can get a deposit of crud. The first time I pulled my lifters in 09 it was tough. I drenched them in penetrating oil while doing a rapid up & down movement with the magnet pulling up just enough to not break the grip but...
  2. Steamer

    F.5 head job - questions about valve stem seals, lifters/pushrods

    My 5-74 F.5 serial # is F533465 and has domed pistons. I just do not know which other years had them. Stock domed 90mm pistons are NLA. I have not been able to find aftermarket domed 90mm pistons in stock anywhere. I have been meaning to call “THESE” guys to find out if there are domed pistons...
  3. Steamer

    F.5 head job - questions about valve stem seals, lifters/pushrods

    Yes, the OEM umbrella seals for the 74 are NLA but if you check Toyota Parts Deal, the valve guides are the same 1969 through 1987 so the later positive seals work fine. I had the ITM 196 positive seals put on my recently rebuilt head. Lifters are the same for the F, F.5, & 2F. “Toyota Parts...
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