Results 1 to 8 of 8

Thread: matching up engine number

  1. #1
    Learner Driver
    Join Date
    May 2013
    Posts
    13

    matching up engine number

    Hi guys,
    I have a 5/76 HJ 308, I'm wondering if there is any actual records of the actual engine number the car was made with, as I'm guessing I am never going to be able to find this block, what would the approximate engine number/code be for a 308 built for a 5/76 hj so I can at least have a block that matches that era.
    Thanks

  2. #2
    Night Rider Innuendo's Avatar
    Join Date
    Aug 2012
    Posts
    3,427
    You would need a block made according to the cast time stamp up to and around 3 months of your build date (obviously not after).
    For the real engine number, it is written in the Owners Manual/Service Policy and is why car with them are more desirable and likely more valuable.
    I report from www.holdenhistoricalservices.com.au in some cases will let you know the engine number (if it was recorded).
    Being a HJ 308 the engine number will start with QT.

  3. #3
    Learner Driver
    Join Date
    May 2013
    Posts
    13
    Thanks once again Innuendo, where is the cast time stamp located. I have a photo that reads 28L5 but I cant see in the photo where it is located. Looks to be in front of intake at the front of the block?
    I guess QT is designated for all HJ series and there is nothing different marked between the model ranges Belmont up to GTS or a Sandman?
    Does the prefix 11 have any meaning?
    An engine out of a Kingswood with the right time stamp will be authentic in a Sandman?
    Last edited by porkhunt22; 12-09-2017 at 08:36 AM.

  4. #4
    Night Rider Innuendo's Avatar
    Join Date
    Aug 2012
    Posts
    3,427
    Yes the cast date is in front of the intake manifold before the water pump.
    28L5 = 28 day November 1975
    11QT = Statesman 308

    An engine out of a Holden, Kingswood or Torana with QT would be suitable.

  5. #5
    Banned
    Join Date
    Feb 2010
    Location
    Central West NSW
    Posts
    4,463
    Torana motor will have wrong engine number prefix as will early Commodore.
    The only one that suits HJ is a QT motor in 308 or a replacement Nasco block with NT prefix.
    11QT is HQ to HZ Statesman. It was a favourite way of re-birthing a stolen 308 as well. Just add 11.
    Chasing the date code doesn't really mean much though. The only authentic engine number is the one on the purchase documents.
    All HQ to early HZ 308 were the same prefix regardless of model or series except Statesman. It was only a replacement block that got a different prefix. Torana and Commodore were a different prefix as was WB. L34 were different again.
    So you want QT for 308 or QR for 253.
    Last edited by wbute; 12-09-2017 at 06:55 PM.

  6. #6
    Learner Driver
    Join Date
    May 2013
    Posts
    13
    Thanks for your help guys.

  7. #7
    It's a rockin' Big Rob's Avatar
    Join Date
    Aug 2013
    Location
    Eurobodalla NSW South Coast
    Posts
    1,829
    Yeah. Torana was HT and HR.
    Vans.... This is the 2nd time round the block, 40 years later! talk about turning back the clock!

  8. #8
    Night Rider Innuendo's Avatar
    Join Date
    Aug 2012
    Posts
    3,427
    The important part is to look for a QT engine number where ever it has been transplanted.
    Selling HJ 253 Engine
    Engine Number QR718*** | 19M5 Clock Casting at 6 O'Clock
    19th December 1975 Suit HJ Late Dec 1975 to April 1976

Thread Information

Users Browsing this Thread

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

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
  •