Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

Help with Engine Number Please

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by beefcake83, Aug 21, 2001.

  1. beefcake83

    beefcake83 1/2 ton status

    Joined:
    Jun 24, 2000
    Posts:
    240
    Likes Received:
    0
    Location:
    Alaska
    I'm hoping that someone out there can help me 'decode' my engine block number. The original 305 was taken out and a 350 installed shortly before my buying it, and I'm trying to find out exactly how old it is. It has the Goodwrench 350 valve covers. I used silly puddy to figure out my block number... 10066038. There's a big 'GM' and something 'en mexico' above the number. Any help would be appreciated. Thanks in advance. -

    Gary Graham
    '83 GMC Jimmy 350 'Beefcake'
    Eielson AFB, Alaska
    Metallica & Mountain Dew
    http://community.webshots.com/user/beefcake83
     
  2. POWERMAD

    POWERMAD 1/2 ton status

    Joined:
    Mar 4, 2001
    Posts:
    3,466
    Likes Received:
    0
    Location:
    Oregon
    hey there.
    10066038...350.....94....4...Goodwrench crate motor, 2-piece rear seal, "Hecho en Mexico"
    I got that info from here.<a target="_blank" href=http://www.mortec.com/castnum.htm>http://www.mortec.com/castnum.htm</a>

    <font color=green> Too bad ignorance isn't painful </font color=green>
     
  3. beefcake83

    beefcake83 1/2 ton status

    Joined:
    Jun 24, 2000
    Posts:
    240
    Likes Received:
    0
    Location:
    Alaska
    Can't thank you enough for this info!!!.... I've been trying for a year now to find out what I had... Hope I can help you out on something to return the favor. - Gary

    Gary Graham
    '83 GMC Jimmy 350 'Beefcake'
    Eielson AFB, Alaska
    Metallica & Mountain Dew
    http://community.webshots.com/user/beefcake83
     
  4. wakedog

    wakedog 1/2 ton status

    Joined:
    Mar 7, 2001
    Posts:
    233
    Likes Received:
    0
    Location:
    Minnesota
    Beefcake, where exactly did you look to find the number i have not been able to find mine.
     
  5. beefcake83

    beefcake83 1/2 ton status

    Joined:
    Jun 24, 2000
    Posts:
    240
    Likes Received:
    0
    Location:
    Alaska
    On my 350, it's located at the driver's side rear of the block where the engine and tranny bellhousing meet. It's almost impossible to see from above, but if you lay under your rig and reach up where I described, you'll be able to feel them. I tried mirrors, and flashlights, but ended up using Silly Puddy to read them. I first wiped the area with a rag, and then pressed the stuff on them. It took a few times to get all of the numbers logged down, but worked great. If you go to the site that POWERMAD sent me on this post, it will help you out too. If you still have trouble, let me know. - G

    Gary Graham
    '83 GMC Jimmy 350 'Beefcake'
    Eielson AFB, Alaska
    Metallica & Mountain Dew
    http://community.webshots.com/user/beefcake83
     
  6. wakedog

    wakedog 1/2 ton status

    Joined:
    Mar 7, 2001
    Posts:
    233
    Likes Received:
    0
    Location:
    Minnesota
    Thanks, i was looking at the mortec site before, but just haven't gotten to look for them, i have silly poutty in hand and am goin to see now.
     
  7. POWERMAD

    POWERMAD 1/2 ton status

    Joined:
    Mar 4, 2001
    Posts:
    3,466
    Likes Received:
    0
    Location:
    Oregon
    That site is a good one
    That's how I found that the plant in mine is a 305.


    <font color=green> Too bad ignorance isn't painful </font color=green>
     
  8. wakedog

    wakedog 1/2 ton status

    Joined:
    Mar 7, 2001
    Posts:
    233
    Likes Received:
    0
    Location:
    Minnesota
    Well i got mine and this is what mortec said 10066036...350...........2 or 4...Target Master/Goodwrench crate motor, 2-piece rear
    seal, "Hecho en Mexico"

    So what is the Target Master??
     
  9. POWERMAD

    POWERMAD 1/2 ton status

    Joined:
    Mar 4, 2001
    Posts:
    3,466
    Likes Received:
    0
    Location:
    Oregon
    That is just another name for a crate engine.

    <font color=green> Too bad ignorance isn't painful </font color=green>
     

Share This Page