Results 1 to 7 of 7

Thread: L28 turbo block in a 240Z

  1. #1
    Registered User
    Member ID
    CZCC-6042
    Join Date
    Mar 2004
    Location
    scranton pa
    Posts
    1

    Default L28 turbo block in a 240Z

    Hi guys, I am thinking of putting an 83 turbo engine in my 72Z, but don't want to turbo it or fiddle with electrics. Can I simply replace the top end with a E31 head I have and use a pair of su's with this L28 turbo bottom end? Any significant advantage to the L28 Turbo block and bottom end(stock) vs the L28 non-turbo? I had a non-turbo stock block L28 with the E31 head setup in it before and the torque was great.

  2. #2
    Registered User
    Member ID
    CZCC-1499
    Join Date
    Dec 2001
    Posts
    4,388

    Default

    You would be better off to use the non-turbo F-54 with the flat top pistons with the E-31 head.
    The Turbo block is the same, the only major differences are the pistons and rings. You will be playing "catch-up" by using the turbo block with the dished pistons, since even with an E-31 your compression is going to be significantly lower than if you used a non turbo F54.
    "If it weren't for fools, the rest of us could not succeed." Mark Twain.

  3. #3
    Datsaholic Mr Camouflage's Avatar
    Member ID
    CZCC-1278
    Join Date
    Oct 2001
    Location
    Perth, Western Australia
    Age
    48
    Posts
    3,460

    Default

    No advantage, more disadvantages. Lower static compression (dished pistons). less compression = less power.

    Sell the turbo engine to someone that wants a turbo and buy a non turbo L28 block.
    www.nostalgictrio.com Skyline - Silvia - Fairlady Z
    www.ozdat.com The Australian Datsun site.
    www.cafepress.com/vintagedatsun

  4. #4
    Known Zitus carrier! hls30.com's Avatar
    Member ID
    CZCC-4106
    Join Date
    May 2003
    Location
    Savannah, Georgia
    Posts
    6,702

    Default

    Alternative thought, bolt the turbo head on your 240 block. Much better flow, NO valve noise, no periodic valve adjustment. Your manifolds will bolt right up, and you have more tunability! More flow, more go! I would also put the turbo oil pump in the mix.
    Will
    A Z is beautiful from any angle, I just happen to prefer to view from the drivers' seat!

  5. #5
    Datsaholic Mr Camouflage's Avatar
    Member ID
    CZCC-1278
    Join Date
    Oct 2001
    Location
    Perth, Western Australia
    Age
    48
    Posts
    3,460

    Default

    Originally posted by hls30.com
    Alternative thought, bolt the turbo head on your 240 block. Much better flow, NO valve noise, no periodic valve adjustment.
    Assuming its a P90A head and Not a P90.

    When those hydraulic lifters go, they are damn expensive to replace.
    www.nostalgictrio.com Skyline - Silvia - Fairlady Z
    www.ozdat.com The Australian Datsun site.
    www.cafepress.com/vintagedatsun

  6. #6
    Registered User gema's Avatar
    Member ID
    CZCC-5232
    Join Date
    Nov 2003
    Location
    Annapolis, MD
    Posts
    325

    Default

    If you're selling the L28ET, I might be interested. About the post, I'm in agreement with those above me.

  7. #7
    beandip beandip's Avatar
    Member ID
    CZCC-1887
    Join Date
    Mar 2002
    Location
    Beaverton, Oregon
    Age
    81
    Posts
    4,038

    Default

    As was already stated there is no advantave with the turbo block. The blocks are the same . Its the pistons. The F-54 block is the latest evelution of the inline 6 for Nissan and supposidly the strongest.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •