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Discussion Starter #1
How difficult would this be to accomplish in a Z71?
It looks to me like everything is different. Is there a swap kit.
The 5.3 came with everything including the computer. I'm asking for my brother in law it for his work truck and can't be down for very long.

Thanks
 

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I put up the tools against$300
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Getting the engine to fit and crank, no problem. Getting the 99 harness and ecu to work with all the 97 equipment maybe a different story. I would look at bellhousings and bolt patterns before I started. I'm not sure what the mechanical differences between the two are. Do you have the 99 trans, transfer case & driveshafts?
 

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No trans or case just the engine and ecu. The engine is complete it appears that the bell housing pattern is the same but the motor mounts and exhaust are different as well as the alt, ac compressor.
 
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