Page 1 of 2 12 LastLast
Results 1 to 15 of 30

Thread: Engine Number?

  1. #1
    casual poster csber2's Avatar
    Join Date
    Nov 2007
    Location
    victoria
    Posts
    168

    Default Engine Number?

    Hey guys,

    This may sound stupid but I cant find my engine number on my block anywhere? I have had a good look around with a torch but cant seem to find it....

    According to the rego label it is PTXXXXXX

    The casting number above the water pump is 29DB i think... (hard to tell cause the paint is chipped)

    Its is in a HZ ute and is supposed to be a 308.... (painted red, but that doesnt mean anything)

    Is there any other way I can tell what this engine is? Or if I am just blind and cant find the engine number.

    Any help would be great.

  2. #2
    not to be trusted
    Join Date
    Jun 2006
    Location
    melbourne
    Posts
    1,937

    Default

    look under the front passengers exhaust, there should be a flat surface about 2" by 1/2" or thereabouts on the block. If the numbers not there or barely readable the block may have been decked and most dont bother restamping it (machinists that is, dont know why but?)

    No number means a trip to the police station, stat decs, possibly xrays and a new issued number.

    Or a helpful owner of some stamps of the same type as original...

  3. #3
    casual poster csber2's Avatar
    Join Date
    Nov 2007
    Location
    victoria
    Posts
    168

    Default

    Thanks Greenhj I will pop my head under tonight...

    And if its not there all the vin stamps we have at work might come in handy... (semi trailer manufacturer)

  4. #4
    classic not plastic nvs308's Avatar
    Join Date
    Aug 2008
    Location
    sunbury
    Posts
    88

    Default Engine Number?

    hi there how to tell if it is a 4.2 (253) or a 5ltr (308) near where the casting number is there should be like a clock with a dial if the hand is pointing to 2 its a 4.2 253 if its pointing to 5 its a 5ltr 308 as for the engine number on the left hand side of the motor passanger side just under the front of the manifold under number 2 spark plug hope this helps anybody can correct me if iam wrong cheers ...Darren

  5. #5
    Do you ever leave?
    Join Date
    Jun 2006
    Location
    Kalgoorlie
    Posts
    3,226

    Default

    the clock tells you the time of the casting pour,2 is 2oclock.More info tomorrow when I may have more time.

  6. #6
    classic not plastic nvs308's Avatar
    Join Date
    Aug 2008
    Location
    sunbury
    Posts
    88

    Default

    well the thing is every block i have looked at they all say 2 or 5 can not make them all at the same time ??????

  7. #7
    bad tempered old c@&t wabbit's Avatar
    Join Date
    Oct 2004
    Location
    Rockhampton
    Posts
    6,810

    Default

    blocks at my place

    253 4 o'clock
    304 1 o'clock
    308 9 o'clock

    nuff said
    If a man says something in a forest, and his wife isn't there to hear him................is he still wrong?

  8. #8
    casual poster soddy31's Avatar
    Join Date
    Oct 2008
    Location
    Wollongong
    Posts
    154

    Default

    heres some wisdom from me. and i can gaurentee it 100% (old faithful "how to rebuild & hotrod holden v8s")
    the way to tell how old the block is by lookin at the numbers on the front of the block. eg my 308 block says 27B4 and the clock is pointing to 2'oclock, this number refers to the casting date and time (im assuming for insurance reasons in case there's a dodgy batch of blocks released).
    The number (27) stands for the date.
    The letter is referring to the month (B) B is 2nd in the alphabet therefor it being February
    and the last number refers to the yr (4) and cause its out of a vk it'd have to be 1984.
    and the clock is for the casting time.
    so i can tell you that my block was forged on the 27th of feburary 1984 at 2pm (assuming that no ones working at 2am)

    the engine capacity is forged on the lower left side of the engine.
    and the engine number cast onto the left corner is for theft reasons and confirmation that the car has the original block, and the fact its a serial number to keep track of production id assume.

    hope this helps yous out abit
    2nd hand commodore - $1000
    set of chasers - $100
    welded diff - $20
    the look on their face when approaching sideways - Priceless

  9. #9
    Do you ever leave?
    Join Date
    Jun 2006
    Location
    Kalgoorlie
    Posts
    3,226

    Default

    soddy you beat me to it & to add to that the only way i can find to say 253 or 308,the size is cast into the block 253,308 or 5.0 for the 304.for what soddy said there are 3 ways it was done & all the markings are near the clock

  10. #10
    casual poster HQ_SS's Avatar
    Join Date
    Aug 2008
    Location
    Perth WA
    Posts
    352

    Default

    soddy31 has it right about the date casting decode, but to add to that a little bit
    27B4 could also be 27th of February 1974.
    So a check of the engine number code and actual number will be able to tell which is which.
    Also if the block was cast before around June July 1973 it will have a slightly different date code.
    It would be like B273 27th feb 1973 so month day year, not day month year.
    As the date coding system for Holden engines changed around June/July 1973.

    For reference here is a useful Holden V8 engine code list.

    253/4.2 litre

    11QR - HQ Statesman (@@ in HJ-HZ) high compression

    11QS - HQ Statesman custom low compression

    11ZR - @@ in HZ Statesman ##

    253H - HT and HG high compression

    253L - HT and HG low compression

    BS - 1979 E and S series Bedford (Chev pattern gearbox)

    QR - HQ-late HZ high compression

    QS - HQ-HJ low compression

    ZR - late HZ

    N5R - GMP&A 253 replacement short motor VC-VH, WB

    NR - Nasco (or equivalent) replacement red short motor HQ-HZ, VB

    NS - Nasco (or equivalent) replacement red short motor HQ-HX ##

    HR - LH/LX high compression

    HS - LH/LX low compression

    VR - VB to VH (red and blue)

    WR - WB commercial



    304/308 (5.0 litre):

    11QT - HQ-late HZ Statesman

    11WT - WB Statesman

    11ZT - Late HZ Statesman

    12WT - Late WB Statesman

    308H - HT and HG

    BV - 1979 E, M and S series Bedford L43 option (low compression, 2 barrel rochester)

    HZ - LH SLR5000 L34

    HT - LH/LX SLR5000 including A9X (except LH L34)

    N5A - GMP&A 304 replacement short motor LV2

    N5B - GMP&A 304 replacement short motor V5H

    N5C - GMP&A 304 replacement short motor VK A9L

    N5G - GMP&A 304 replacement short motor V7X

    N5J - GMP&A 304 replacement short motor VL

    N5T - GMP&A 308 replacement short motor VC-VK, WB

    N5Z - GMP&A 308 replacement short motor V5H

    NT - Nasco (or equivalent) replacement short motor HQ-HZ, VB 308

    NZ - Nasco (or equivalent) replacement short motor for L34

    QT - HQ-late HZ

    VT - VB to VK 308 (red, blue and black)

    VA - VK 304 LV2

    VB - VK 304 early 1985 manual only V5H

    VC - VK Group A (engine painted red) A9L

    VE - VN HSV 200kW (SV5000 and other 'red cover' engines)

    VG - VK 304 late 1985 manual only V7X

    VJ - VL 304

    VK - VN Group A 4-bolt (plus other 4-bolt models eg VP GTS)

    VL - VR-VS 5.7L 215kW

    VM - VT 179kW plus VSIII ute and Statesman 179kW. Also VSIII ute and Statesman with HBD 195kW engine. ##

    VN - VT 304 HSV 195kW

    VP - VL Walkinshaw and VT 5.7L 220kW HSV (different blocks, common number)

    VU - VN to VS 304 (except VSIII ute and Statesman with 179kW engine)

    VZ - VK 308 V5H

    VW - VL A9L

    WT - WB commercial

    ZT - late HZ

  11. #11
    classic not plastic nvs308's Avatar
    Join Date
    Aug 2008
    Location
    sunbury
    Posts
    88

    Default

    stand corrected guys just shows how much i know (nothing lol) anyway thanks >>>>anyway here is my casting number can anyone tell me what mine is 24E7 casting number cheers...

  12. #12
    casual poster soddy31's Avatar
    Join Date
    Oct 2008
    Location
    Wollongong
    Posts
    154

    Default

    24th of may 1977, 1987 depending on what yr. i can gaurentee that mines 1984 cause it came out of a vk and the serial numbner begins with vt
    Last edited by soddy31; 08-02-2009 at 09:51 AM.
    2nd hand commodore - $1000
    set of chasers - $100
    welded diff - $20
    the look on their face when approaching sideways - Priceless

  13. #13
    Newbie
    Join Date
    Dec 2009
    Location
    camperdown
    Posts
    6

    Default

    Quote Originally Posted by HQ_SS View Post
    soddy31 has it right about the date casting decode, but to add to that a little bit
    27B4 could also be 27th of February 1974.
    So a check of the engine number code and actual number will be able to tell which is which.
    Also if the block was cast before around June July 1973 it will have a slightly different date code.
    It would be like B273 27th feb 1973 so month day year, not day month year.
    As the date coding system for Holden engines changed around June/July 1973.

    For reference here is a useful Holden V8 engine code list.

    253/4.2 litre

    11QR - HQ Statesman (@@ in HJ-HZ) high compression

    11QS - HQ Statesman custom low compression

    11ZR - @@ in HZ Statesman ##

    253H - HT and HG high compression

    253L - HT and HG low compression

    BS - 1979 E and S series Bedford (Chev pattern gearbox)

    QR - HQ-late HZ high compression

    QS - HQ-HJ low compression

    ZR - late HZ

    N5R - GMP&A 253 replacement short motor VC-VH, WB

    NR - Nasco (or equivalent) replacement red short motor HQ-HZ, VB

    NS - Nasco (or equivalent) replacement red short motor HQ-HX ##

    HR - LH/LX high compression

    HS - LH/LX low compression

    VR - VB to VH (red and blue)

    WR - WB commercial



    304/308 (5.0 litre):

    11QT - HQ-late HZ Statesman

    11WT - WB Statesman

    11ZT - Late HZ Statesman

    12WT - Late WB Statesman

    308H - HT and HG

    BV - 1979 E, M and S series Bedford L43 option (low compression, 2 barrel rochester)

    HZ - LH SLR5000 L34

    HT - LH/LX SLR5000 including A9X (except LH L34)

    N5A - GMP&A 304 replacement short motor LV2

    N5B - GMP&A 304 replacement short motor V5H

    N5C - GMP&A 304 replacement short motor VK A9L

    N5G - GMP&A 304 replacement short motor V7X

    N5J - GMP&A 304 replacement short motor VL

    N5T - GMP&A 308 replacement short motor VC-VK, WB

    N5Z - GMP&A 308 replacement short motor V5H

    NT - Nasco (or equivalent) replacement short motor HQ-HZ, VB 308

    NZ - Nasco (or equivalent) replacement short motor for L34

    QT - HQ-late HZ

    VT - VB to VK 308 (red, blue and black)

    VA - VK 304 LV2

    VB - VK 304 early 1985 manual only V5H

    VC - VK Group A (engine painted red) A9L

    VE - VN HSV 200kW (SV5000 and other 'red cover' engines)

    VG - VK 304 late 1985 manual only V7X

    VJ - VL 304

    VK - VN Group A 4-bolt (plus other 4-bolt models eg VP GTS)

    VL - VR-VS 5.7L 215kW

    VM - VT 179kW plus VSIII ute and Statesman 179kW. Also VSIII ute and Statesman with HBD 195kW engine. ##

    VN - VT 304 HSV 195kW

    VP - VL Walkinshaw and VT 5.7L 220kW HSV (different blocks, common number)

    VU - VN to VS 304 (except VSIII ute and Statesman with 179kW engine)

    VZ - VK 308 V5H

    VW - VL A9L

    WT - WB commercial

    ZT - late HZ


    My V8 has an engine number 253H.... but has 308 cast on the side. So what is it? a 253 or 308???

  14. #14
    casual poster
    Join Date
    Apr 2009
    Location
    wollongong
    Posts
    158

    Default

    ok so i bought a one tonner with a 253, and the bloke told me he put brock heads on it, which was irreleavent for me as im swapping it out for a 304, but how can i tell if they are

  15. #15
    casual poster
    Join Date
    Sep 2006
    Location
    Tamworth
    Posts
    384

    Default

    Quote Originally Posted by soddy31 View Post
    heres some wisdom from me. and i can gaurentee it 100% (old faithful "how to rebuild & hotrod holden v8s")
    the way to tell how old the block is by lookin at the numbers on the front of the block. eg my 308 block says 27B4 and the clock is pointing to 2'oclock, this number refers to the casting date and time (im assuming for insurance reasons in case there's a dodgy batch of blocks released).
    The number (27) stands for the date.
    The letter is referring to the month (B) B is 2nd in the alphabet therefor it being February
    and the last number refers to the yr (4) and cause its out of a vk it'd have to be 1984.
    and the clock is for the casting time.
    so i can tell you that my block was forged on the 27th of feburary 1984 at 2pm (assuming that no ones working at 2am)

    the engine capacity is forged on the lower left side of the engine.
    and the engine number cast onto the left corner is for theft reasons and confirmation that the car has the original block, and the fact its a serial number to keep track of production id assume.

    hope this helps yous out abit
    But there is no I as it can be confused with 1 so J becomes 9th month Sept

Page 1 of 2 12 LastLast

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Cleveland engine number, ID?????
    By jacklegend70 in forum Ford V8's
    Replies: 10
    Last Post: 03-04-2014, 11:15 PM
  2. 351 Cleveland with unusual engine number.
    By Jim140862 in forum Ford V8's
    Replies: 16
    Last Post: 04-03-2008, 10:48 PM
  3. Location of Engine Number - VS
    By Dia in forum Holden V8's
    Replies: 5
    Last Post: 09-10-2007, 10:20 PM
  4. old engine number on efi motor??
    By chad.1972au in forum Holden V8's
    Replies: 19
    Last Post: 18-02-2007, 12:09 PM
  5. old engine number on efi block??
    By chad.1972au in forum Legislation, and modified car laws
    Replies: 1
    Last Post: 22-10-2006, 07:00 AM

Posting Permissions

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