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whats all needed to swap a ls1 into my envoy?

   
Old 10-06-2009, 04:21 PM
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Default whats all needed to swap a ls1 into my envoy?
ill have my ls1 layin around after my new engine is done and was thinking about putting it into my 02 envoy. it has the 4.2 and its the xl version it could use some extra power. what harness could i use to be a direct plug in? and what else would i need?
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Old 10-10-2009, 01:26 PM
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nobody has done this? wow i thought there would be a ton of responses
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Old 10-10-2009, 05:55 PM
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I would just get the wiring harness and everything to put it in from a 5.3 Envoy/Trailblazer. Not sure what all that involves though.
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Old 10-12-2009, 02:26 PM
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the 5.3 engine harness,oil pan,intake? i wonder if stock ls1 manifolds will work.. oh and id need engine mounts.
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