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Discussion Starter #1
My SSR is a 2004 with a 5.3. Has anyone used a 5.3 LM7 engine as a swap? Are there any pros and/or cons in doing this?

I have the chance to purchase a used LM7,,,,I thought that I may build it up and then install it, keeping the original engine intact.

thanks so much for the help!!
 

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Resident Rocket Scientist
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11,997 Posts
Extra weight due to the cast iron block versus the aluminum block of the LM4 that came with the SSR.
 

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Personally, I'd never replace a 5.3 with another 5.3! I'd be looking for a 6.0 or 6.2 and mod it.
 
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