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About G8KeaPoR

  • Rank
    Advanced Member
  • Birthday April 13

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  • Location
  • Cars
    71 510, 93 RX7, 95 993/911 C2, 67 bug, 16 RAM 3500
  • Interests
    CNBC milling and manufacturing, anything maker related and going fast!

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  1. G8KeaPoR

    Which head

    I have both so Ill just use the l-cover. Wanted to check before I parted ways with the z cover to someone.
  2. LOL you just reminded me of this.
  3. G8KeaPoR

    Which head

    So a question here. When using the z20s block and l20b head what timing cover do I use? I would think I would use the l series cover cause of the head differences but I want to be positive.
  4. Yeah from what I saw on dirt bikes and small power equipment is the lines would dry out and crack and/or just about all the brass in a carburetor would corrode leading to plugged jets and floats that sunk. I also found that adding stabil to e-10 gas would cause the brass to corrode faster. I assume this is why they now have a stabil for e-10 and one for e-free? I stopped using it years ago after I had to replace a carb on a 4 wheeler that only sat for a month. EFI engines run a different type of fuel line due to the pressure and no brass at all. Not saying they are impervious to the ethanol but certainly more resistant
  5. I can but its fuel injected and the mfr recommends e-10 or less. They have both e-10 and no e-free at the dock. I have put in both it really just depends what pump is open as to what I use. The E free is around 2.50 so still cheap.
  6. G8KeaPoR

    Which head

    I actually netted a factory gasket with round 1.5 ports at the dealer here. They practically gave it to me for 7 bucks. It was collecting dust in the parts room. Already 3d scanned it to mill a metal template in the event I ever need to do this on another head.
  7. Yeah Virginia's only rule is you cant tie boats together to have a floating party but other than that we can be on the water. Hopefully they will open you guys up there soon as the weather is starting to get nice out least down here anyway so I imagine its around the corner up there.
  8. So if the block turns out to be cracked there are some guides out there for welding the block back up Typically you drill straight holes along each crack and stick weld them up. followed by resurfacing the gasket seat. I recommend letting a machinist do that though. No RTV is going to fix a crack. That said if it isn't cracked might I suggest the RTV sealant specifically made by Mazda for the third gen RX7. I don't know what it is about that RTV but it has sealed things that I couldn't otherwise seal up.
  9. So I bought a brand new Bennington 21 SLX They MSRP just shy of 40k but I got it for 28k. One of the few things the virus was good for is lowering prices. Been on the water all the time as I have no idea how long gas is going to stay at 1.50 a gallon. I know I know the rule is post a pic but honestly I hooked it up to my truck and went straight out to the lave and didn't think about even taking one. Figured since I'm still "tele-working" might as well do it from the water 😄
  10. There is a company called Vintagerubber.com that makes a full set of rubber for both 2 and 4 doors as well as stuff for the wagons. They also sell them in individuals to meet your needs. I bought a set from them for when I put my car back together. They look pretty good to me. Can't say how they fit yet for the Datsun but I used their stuff back when I had my MK1 GTI and it fit pretty good and was comparable to factory quality anyway. Certainly better than most the stuff that comes from CCP virus land. I imagine that they might be flexible on the pricing given the shutdowns etc.
  11. G8KeaPoR

    Which head

    The cylinder one intake valve rusted and coated the guide with rust. I assume the valve was in an open position while it sat cause the inside of the guide is damaged. Either way though I would just replace them. I have to rebuild the rest of the head. I don’t see why 89mm is barely doable on the z20 block. Looks to be plenty of meat there. Besides it could always be sleeved. EDIT. All that said 88m might be the way to go depending on availability of the vg30 oversized pistons are concerned. Worst case I can have my partner turn some out on the lathe and then I could just mill the pockets on the pistons but that seems like a long way to go for something that I’m not positive I will keep long term. i do have to say though that I am going to leave my l20b in tact with the u67 on it. That motor is a fresh motor and best kept as a backup motor that I could just drop in minus swapping the Webber’s back over. That way if I do go for the fool’s errand and blow it up I still have a working motor I can use.
  12. Time Left: 6 days and 1 hour

    • FOR SALE
    • USED

    Z20s head for sale 100.00 plus shipping.


    Mineral, Virginia - US

  13. G8KeaPoR

    Which head

    So I have two motors now. An recently rebuilt running l20b with u67 and a z20s plus I picked up the a87 head for dirt cheap. The a87 needs a full overhaul as it has rusty guides, nicked seats etc. I planned to just port them both and wanted to experiment getting to the 12:1 mark as a maximum on the long rod. We have the ethanol free gas at the pump that is 93 that I already ran since the car has dcoe 40 non emission type carbs so running the higher cost fuel doesn’t bother me. A z20 bored to 89mm with long rods and the higher pin pistons a87 head wouldn’t that be right around 12:1? I mean Datsun are new to me as I have spent all my mechanical career building Porsche stree/track cars as well as Mercedes, bmws, and even some Aston Martins where difference in builds and what they can streetable produce is astronomical so if I sound like an idiot on these engines and want to go down the path to destruction just bear with me. Trust me I am taking all the info in here to heart and paying full attention and appreciate it. That all said the first thing to do is port the a87 as it needs the most work and will provide me the most experience when dealing with these motors in my opinion so I am starting there and if all else fails I’ll just revert to the l20b.
  14. G8KeaPoR

    Which head

    The A87 is a closed chamber. I haven't measured the ports yet but they didn't look like 1.5". At this point aside from checking for warpage and a visual inspection nothing has really been done on it.
  15. G8KeaPoR

    Which head

    On inspection of the a87 head I picked up I noted that the cam towers look like there was some debri in the motor as the bores are really messed up. Do they even make replacements for these anymore? If so anyone got a part number?
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