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As I stated before, I made a mess of the wiring harness, essentially taking apart each circuit and extending it to run the ECM into the cab of the truck. I became friends with a really talented tuner in my area who has done a few swaps similar to this and he has been a fountain of knowledge and advice (also a great source of parts haha). I used the Metaltek Mfg. sliding mounts, the Hughes hammer in torque converter adapter, LS3 exhaust manifolds (I'm assuming from a Camaro) and wiring/parts info from lt1swap.com and did all of the work myself and I'll tell you this much, it was insanely easy. I'm hoping to fire it up today.
Last edited by DeathTrap77; Mar 27, 2015 at 08:07 AM.
Reason: spelling errors
Did you do the heater box like that? Looks like you have ductwork out of house on there. Besides that your doing good. Im watching you! I have mine to get done(blue 4dr). Update I sold motor so now have to get 5.3 in it.
Haha hell no I didn't do that, in fact I'm online searching for a new box now. The previous owner did that... along with a number of other shady "fixes".
Haha hell no I didn't do that, in fact I'm online searching for a new box now. The previous owner did that... along with a number of other shady "fixes".
I been on the hunt for a non-AC box for at least a month with no luck.
I have a feeling I will be fabbing up my own...but a but nicer than yours lol
that would be LMC, but Brothers truck parts probably has it as well. Been a ton of chevy trucks sitting wasting away. You would think you could throw a rock hit one in neighborhood.
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Update and photos 
