1. 

   hadedaro Member

   Joined:

   Aug 17, 2008

   Messages:

   1

   I'm taking a 454 out of 74 2500 and puting a 350 in its place. Do I have to change engine mounts or frame brackets??

    

   hadedaro, Aug 17, 2008

   #1
2. 

   Pontiac1976 Member

   Joined:

   Aug 21, 2006

   Messages:

   482

   Location:

   Ontario, Canada

   Do you have the clam style motor mounts on your 454. If so you should not have to change them. is the 454 from the 73-87 with clam style mounts your ok. The 305, 350, 454 from 73-87 if clam style all the same for Auto's.

    

   Pontiac1976, Aug 18, 2008

   #2

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