I've been following this thread. Is it possible to simply to simply take out my 4.3 V6 and install a crate 5.3 V8. My main concern is will all the electrical connections simply plug back in ?? I have 145K on my engine, and might like having a bit more power. I have a 2002 1500 extended cab 2 wheel drive.

 

thanks for puttin all that up about your swap you did my 5.3L just locked up on me a couple weeks ago and im now plannin on gettin me a good used 5.3l and droppin it in. overall how bad was the job?

 

Guy who bought the engine took the oil pan too. So just Cylinder heads, intake, and engine mounts left.

 

Hey how's it goings I dids the same thing as this gentelman and havens a no start issue all grounds are good and all connectors are as well the only thing is I had a 4.8 I'm my 02 and replace it with a 5.3 out of a 09 wonderings if you could help no spark

 

Hey every one I'm new here and I need of a hand just swaped my 4.8 out of my 02 chevy for a 5.3L out of an 09 just havens a no start
Problem cranks np at all just no spark all fuses are good and computers updated

 

On the 5.3, there is a ground cable that goes from the back of the intake manifold to the firewall. Do you have this on? Maybe the other engine didn't have it. Also, how are you confirming there is no spark?

 

I've got that ground cable on and all the other grounds are ona and clean I'm checkn for spark off the exhuast manifold I check all my powers with the muilti meter ands my ground at coil pack all are good

 

Did you leave the tranny crossmember in place when you pulled engine? I'm hoping all I have to do is unbolt bell housing and torque converter bolts and slide the engine out. Sounds like to much work if I have to mess with dropping tranny at all.

 

To the OP,

Great thread, but I didn't see the finish posted to this story. How did it work out?

 

Yes nice thread, read the whole thing. what I do find strange is that no one called out the incorrect motor designation. Now, I'm not DI#% head, Just a factomatic dude. The 5.3 is a LC9, I had an LS1 in my 99 Z28, 348ci.. nicer heads, crank and state of tune. Go to LC9 Crate Engine - Crate Engines: Powerful and Classic Chevy Race Engines | Chevrolet
You can see all the crate motors that pretty much drops right in. they have a couple motors that just drop into your application. Complete motors with everthing need to roll. just hook up the radiator, air intake, a few wires and shred those tires... In the minds eye, I see me dropping in a new LS3, they about $1200 more than a new LC9 that would be my proper motor. But it will it will never happen as my wallet is empty.
Have a great day!