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motor mounts for 6.2L

Discussion in '1982-Present GM Diesel' started by 6.2Blazer, Jan 17, 2005.

  1. 6.2Blazer

    6.2Blazer 1/2 ton status

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    Need to replace my worn out original rubber motor mounts and would like to upgrade to poly. My K5 is a '90.

    Does anybody have the p/n for the Energy Suspension poly inserts? I can't find the exact number for my application on any site, or even the p/n for a 5.7L gas Blazer. The Energy Suspension site lists two different style inserts, but doesn't give specific model information.

    Also, is that the way to go for a budget upgrade? The ORD comp mounts look nice, but are pretty $$$$.
     
  2. cegusman

    cegusman 3/4 ton status

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    Don't have the part number, but I know they are the same ones for the chevy 350
     
  3. 6.2Blazer

    6.2Blazer 1/2 ton status

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    Hmmm............the 3.1116 seem to the p/n for the small block trucks, while the 3.1121 appear to be for big-block and the new body style trucks. Sound right?
     
  4. cegusman

    cegusman 3/4 ton status

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    The 3.1116 part number is the one I used. THey fit fine in the 6.2 clam shell mounts
     
  5. 6.2Blazer

    6.2Blazer 1/2 ton status

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  6. kennyw

    kennyw N9PHW Premium Member

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    I think the difference in the part #'s has more to do with what year truck your working with. I noticed the motor mounts from my donor truck (1984 C20) would not work in my '79 K10, but the original mounts from my 350 did fit the 6.2 (and are supposed to fit the big block as well).
     
  7. 6.2Blazer

    6.2Blazer 1/2 ton status

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    FYI: Update on motor mount p/n for my '90 K5 w/ 6.2L.........

    It has the same motor mounts as the '88-newer style pickups (IFS) or the big block engines, and thus requires the 3.1121 Energy Suspension inserts (3 bolt style). Cross-reference shows this part should work for '88-'91 K5's.

    The older ones ('87-older) will most likely require the 3.1116 (4 bolt style).
     
  8. Fubeca

    Fubeca 1/2 ton status

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    Last time I got mounts for my 1991 blazer (5.7L) the computer showed that they were the newer ones -- but they weren't. I had to take them back and have them look up an '86 blazer to get the right part. I don't know if it is the same for the 6.2 but I'd definately check twice before you order.
     
  9. 6.2Blazer

    6.2Blazer 1/2 ton status

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    Already verified that my '90 has the new style mounts (3-bolt style) and requires the 3.1121.
     
  10. kennyw

    kennyw N9PHW Premium Member

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    My '79 has a 3 bolt motor mount as well :dunno:
     
  11. 6.2Blazer

    6.2Blazer 1/2 ton status

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    I think a lot of it has to do to the fact that it would be pretty easy to swap the complete mounts out between different vehicles.

    In any case, I had already bought the old style poly inserts but I'm keeping them around until after I actually have everything done just in case.........
     

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