* * * 5.3 swap with 4L60e and other questions ... * * *
Hello guys. I am a newbie at this this site. I had a 2000 Silverado extended cab I sold a couple months back and loved the 5.3 I had in it. Had it for 4 years and no issues. Hence this swap I am now doing to my 1994 C1500 W/T. This is my engine first swap. I am mechanically inclined and I recently pulled out the broken 4.3 with 4L60e trans that was in. I was told the trans was rebuilt a couple years back so I would like to reuse it without spending any extra cash. I purchased a bare 2002 5.3 DBC with basically the block, heads, intake and wire harness that had been partially cut. The person selling it got it from LKQ for their truck but sold the truck before they can put 5.3 in. I got this and other parts off craigslist, so I call this my craigslist budget build. Throughout the pass couple weeks, I have gotten a 5.3 flywheel with the concaved center (kind of curved in the center) where the bolt go, a 2002 PCM, 2004 full factory truck intake box and hoses, ls1 intake manifold (may hold off till later) and few other things from the internet like dirty dingo mounts. I swapped the frame mounts to V8 mounts already and it was not that hard as long as U have someone else assisting. This is going to be a simple driver on the weekends, nothing to be raced. I have a few questions that I see different answers, so here they are:
Can I use my 1994 4L60e with this motor? Will a shift kit help with extra power of the 5.3?
I read up on some people saying to swap out the inside trans harness to that of one of 1996 and later. Or when I have the PCM reflashed, can I tell the one doing, it to disable the PWM for the older 4L60e trans.
I am looking for an inexpensive way to mount the old 4.3 a/c compressor. Is it possible to use the old 4.3 a/c bracket on the 5.3 with some modification?
Can the power steering pump off the 4.3 bolt on the 5.3 alternator / p/s bracket?
Is it recommended to change the rear main seal on the 5.3 since I have it on the engine stand?
I am planning on getting an LS wire harness ready for the 4 wire hook up, or if that does not go thru I will be doing the harness myself (I am soldering inclined).
In getting the 4 wire harness, the EGR and rear O2 sensor wires are deleted. I live in Miami which doesn't require emmisions testing, but I do not want to be killing myself with all those unfiltered exhaust fumes. Can I simply put on a couple aftermarket cats to filter that out? Will they last even thought the O2's will be deleted?
Can I used the 5.3 flywheel that is concaved ( kind of curved in the center) as is or will I need a spacer for the 5.3 to meet with the 4L60e?
Thanks and I know I am missing something
