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1 tuff z

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    LS1 lifters & oil pump

    in Gen III & IV Chevy V8Z Tech Board

    Posted · Edited by 1 tuff z

    Some of you know that I drove from upstate NY to Memphis last summer with my son Alan to attend ZCON 2015.  During my first session lapping at MIR a lifter collapsed.  We fiddled a bit with it and it eventually corrected itself but I drove gingerly in order to ensure I could drive it home.

     

    Arrival home ok and dropped it to have the lifters/guides replaced & upgraded to LS7 as I've read the stock LS1 lifters are prone to failure [part of my ongoing quest to make the LS1 more durable],  I also had them install ARP head studs and new head gaskets.

     

    Fast forward to last week; Z now out of winter hibernation, initial startup and all my lifers are talking and zero oil pressure. Shut it down, check oil [i change my oil each fall prior to storage] which is good, restart and after about 5 seconds [feels like forever] my oil pressure climbs to 25 and lifters are quiet.

     

    Long story short I drop it to the shop again and they determine that the oil pump is not supplying sufficient pressure.  When I first did the swap I had the oil pump inlet & outlets ported for better flow.  They also installed a new cam retainer plate [while in there].  Now I have instant and higher oil pressure at startup as well as better pressure at higher RPM's.

     

    Other upgrades for reliability & durability: double row timing chain, oil catch can/separator.

    WTB some small parts for my 73 240Z.

    in Parts Wanted

    Posted

    Thanks David for the respond.

    Still looking for the 240Z license plate light in good shape.Do you have one?Also Looking for the rear hatch door rubber seal and the three hatch panels,The tail light and the sides,The PO cut holes for speakers.Brownish color.Also looking for front bumper fillers or 70-72 Front bumper.

    Let em e know if you have them .

    Jamal

    Interior panels & hatch rubber I don't have, sorry.  I will check to see if I have the license plate light & front bumper this evening.

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