Is 5.3 swap to much money and work? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**62bagger** · 02-01-2019, 07:36 PM

I have been following this thread and I think LS or gen 1 depends on preference. I have seen some really nice engine compartments for both. I was thinking I would go with a gen1 on my build just because I am not sure if I could figure out how to get an LS connected up. I have heard the wiring can be complicated. It might be a good option for me dollar wise since I need a motor and all the manifolds, alternator, accessory drives,etc. I can get an LS with everything at a reasonable price. How easy is it to get the harness connected?

**57taskforce** · 02-01-2019, 08:22 PM

Quote:

Originally Posted by 62bagger

I have been following this thread and I think LS or gen 1 depends on preference. I have seen some really nice engine compartments for both. I was thinking I would go with a gen1 on my build just because I am not sure if I could figure out how to get an LS connected up. I have heard the wiring can be complicated. It might be a good option for me dollar wise since I need a motor and all the manifolds, alternator, accessory drives,etc. I can get an LS with everything at a reasonable price. How easy is it to get the harness connected?

It’s mostly plug and play if you buy a pre made harness. I modified my own for the 6.0 swap that’s going in my 72 K20. Modding your own is a little more complex and time consuming but not bad. Normally they are setup so all they need is key hot, constant hot, and ground. You’ll also have to wire in anything that you’ve decided to have computer controlled like the fuel pump, cooling fans, etc. (those things are mostly all optional depending on what your doing with your build) Then you have to hook all the sensors up, route your harness, and mount the computer.

**62bagger** · 02-01-2019, 11:52 PM

Thanks for the info. That does not sound as bad as I was expecting. That gives me something to consider.

HSRACER · 02-04-2019, 08:54 AM

I have a combination of old school small blocks and LS engines. Each has its place but after driving with LS power that’s all I am doing in future builds or replacement stuff.

They work so good and the driving experience is awesome.

Here are a few pictures for you to see what I have in my trucks.

02-01-2019, 07:36 PM	#1
62bagger Senior Member Join Date: Mar 2016 Location: Sonora California Posts: 292	Re: Is 5.3 swap to much money and work? I have been following this thread and I think LS or gen 1 depends on preference. I have seen some really nice engine compartments for both. I was thinking I would go with a gen1 on my build just because I am not sure if I could figure out how to get an LS connected up. I have heard the wiring can be complicated. It might be a good option for me dollar wise since I need a motor and all the manifolds, alternator, accessory drives,etc. I can get an LS with everything at a reasonable price. How easy is it to get the harness connected?

02-01-2019, 11:52 PM	#3
62bagger Senior Member Join Date: Mar 2016 Location: Sonora California Posts: 292	Re: Is 5.3 swap to much money and work? Thanks for the info. That does not sound as bad as I was expecting. That gives me something to consider.

02-04-2019, 08:54 AM	#4
HSRACER Registered User Join Date: Sep 2007 Location: Katy TX Posts: 1,268	Re: Is 5.3 swap to much money and work? I have a combination of old school small blocks and LS engines. Each has its place but after driving with LS power that’s all I am doing in future builds or replacement stuff. They work so good and the driving experience is awesome. Here are a few pictures for you to see what I have in my trucks. Attached Images __________________ HSRACER Slammed 53 5 window Blown/Bagged 54 Pickup Patinaed 67 LS stepside Supercharged 67 Nova Bagged 69 Suburban Turbo'ed 5.3 LS Last edited by HSRACER; 02-04-2019 at 09:00 AM.



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