LTX and LSX Putting LT1s, LS1s, and their variants into Third Gens is becoming more popular. This board is for those who are doing and have done the swaps so they can discuss all of their technical aspects including repairs, swap info, and performance upgrades.

ls swap 5.3

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Old Feb 15, 2015 | 09:33 PM
  #1  
bizzle88's Avatar
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From: central illinois
Engine: 355ci
Transmission: th350
Axle/Gears: idk, its disc brake posi
ls swap 5.3

hey folks this is my first post and hopefully I do it correctly and sufficient , but I have a question, Im wanting to do the ol ls swap in the 3rd gen eventually and I came across a 5.3 out of a 06 Silverado, that "got coolant in a cylinder and broke a rod" and its all taken apart but the lowest they will go is $450 on the engine is this good deal or should I pass and wait for another? plans would be to eventually put boost to it, and opinions are appreciated in advanced and thank you! and what ive read is that the newer blocks are aluminum? correct me if im wrong please and thank you

Last edited by bizzle88; Feb 15, 2015 at 09:53 PM.
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Old Feb 15, 2015 | 10:41 PM
  #2  
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From: Clark NJ
Car: 1988 Pontiac Transam GTA Notchback
Engine: 2003 Chevy 5.3 Vortec (325 cu)
Transmission: 4L60E
Axle/Gears: 3.27
Re: ls swap 5.3

Just putting it out there, I payed 700 for a complete engine- intake to oil pan
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Old Feb 15, 2015 | 10:46 PM
  #3  
bizzle88's Avatar
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From: central illinois
Engine: 355ci
Transmission: th350
Axle/Gears: idk, its disc brake posi
Re: ls swap 5.3

so in other words wait for better deal? right
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Old Feb 15, 2015 | 10:58 PM
  #4  
alex722607's Avatar
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From: Clark NJ
Car: 1988 Pontiac Transam GTA Notchback
Engine: 2003 Chevy 5.3 Vortec (325 cu)
Transmission: 4L60E
Axle/Gears: 3.27
Re: ls swap 5.3

Personally I would. I mean if you get a block cheap, but then have to pour a ton into it just to make it right, it doesnt work out in the end. I mean with mine, my engine burnt oil and I did know that before I purchased it. I ended up dishing out 400 for new reman heads.

IMO (ofcourse) good luck with your decision
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Old Feb 16, 2015 | 08:28 PM
  #5  
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From: NC
Car: 91 Trans Am
Re: ls swap 5.3

It hydrolocked and snapped a rod. Often the rod stub also goes through the block and/or bangs up the base of the cyl enough to ruin the block

FWIW, Ive had about 20 5.3s and never paid $450 for any of them, ready to run. They're throw away motors
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Old Feb 16, 2015 | 09:52 PM
  #6  
bizzle88's Avatar
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From: central illinois
Engine: 355ci
Transmission: th350
Axle/Gears: idk, its disc brake posi
Re: ls swap 5.3

im gunna pass on the deal being it snapped a rod made me wonder what else happened too, but I value yalls opinions and my search will continue thanks for the responses ;-)
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Old Feb 18, 2015 | 09:19 AM
  #7  
R13_Braz's Avatar
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From: Garland, TX
Car: 2014 Z28 #80
Re: ls swap 5.3

I paid $400 for a complete 04 4.8 with 119k miles (including exhaust manifold's). Except for it being dirty, and needing to be flushed out due to sitting, it's practically pristine.
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Old Feb 18, 2015 | 10:32 AM
  #8  
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From: N.E. Ohio
Car: 87 Gta
Engine: 5.3
Transmission: 4l60e
Axle/Gears: 3.42
Re: ls swap 5.3

I paid just over a grand for a 01 5.3 and 4l60e with 98k. Plus ecm and harness. Just a fyi. Plus I heard it run before they pulled it
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