LS Swap Shopping List I'm in a position now where I have: 1) What was once a functioning 5.3/LM7 from my 06 Tahoe. It may or not be resurrected as the there's an issue with the engine management that I can't get a handle on despite using my Tech 2 scan tool. My guess is that the Tahoe, after sitting for over a year in the outdoors is that most of the connections have been corrupted and establishing proper communication with PCM seems impossible. 2) A tired Gen 1 SBC that's in need of fresh shortblock. So, I'm looking at the cost relative to rebuilding the Gen 1 or swapping in the LS. I've built up a short parts list based on what I've gleaned from the various posts here at Thirdgen. I have the Holley swap crossmember already and a carbed application suits me just fine. The exhaust has to be re-done regardless so I've left that off the list other than headers. I can ditch the OEM PCM and harness using the Edelbrock package which includes an ignition controller. At least I think that can be done. The oil pan and engine mounts seem like standard fare. Not sure about the truck's accessory drive as the high mount alternator could be an issue. Any comments or suggestions otherwise are invited. https://cimg1.ibsrv.net/gimg/www.thi...f4ec2bc37a.jpg |
Re: LS Swap Shopping List The critical element there I think is the oil pan. I've heard various accounts of what works and what doesn't. Also how it all relates to fitting a windage tray. |
Re: LS Swap Shopping List If you have a stock K-member then you better stick with the LS1 F-body style oil pan. https://www.summitracing.com/parts/n...t/model/camaro Although, I don't know if that pan will work with the Holley engine mounts since those mounts pull the engine forward. You might have to use the Holley "F-body-ish" 302-2 oil pan I have the 302-1 oil pan and I will be test fitting it with stock k-member but you won't want to wait for me if you're in a hurry. |
Re: LS Swap Shopping List No hurry here. This swap would not be something I'll be doing anytime soon. |
Re: LS Swap Shopping List I just got my 5.3 in the car. I used Holley 302-2 oil pan and it fit right in. I used the same Hooker mounts that are in your list. |
Re: LS Swap Shopping List Good to know. Thanks. I had read that fitting a full length windage tray in the 302-2 pan is possible. Did you deal with at all? |
Re: LS Swap Shopping List
Originally Posted by skinny z
(Post 6251194)
Good to know. Thanks. I had read that fitting a full length windage tray in the 302-2 pan is possible.Did you deal with at all? |
Re: LS Swap Shopping List I've read that somewhere as well. Minor stuff really but good to know. I don't care much for notching the k-member. Not that it's a terrible thing to do or structurally unsound, I'd just rather not. It seems that keeping with the Hooker/Holley package takes care of a lot of headaches. |
Re: LS Swap Shopping List
Originally Posted by skinny z
(Post 6251200)
I've read that somewhere as well. Minor stuff really but good to know. I don't care much for notching the k-member. Not that it's a terrible thing to do or structurally unsound, I'd just rather not. It seems that keeping with the Hooker/Holley package takes care of a lot of headaches. |
Re: LS Swap Shopping List That looks like the way to go. |
Re: LS Swap Shopping List So I picked up an alternator relocation kit from ICT Billet. It requires the use of a truck balancer and supplied water pump spacers. I swapped out a truck pulley to car water pump to eliminate the spacers.https://cimg5.ibsrv.net/gimg/www.thi...aa935ed15e.jpg https://cimg7.ibsrv.net/gimg/www.thi...ec987ad75a.jpg |
Re: LS Swap Shopping List
Originally Posted by Sculptural
(Post 6251203)
I tried to not notch the k-member as I lack the fabrication skills to do so. The Hooker/Holley setup makes everything fit nicely. https://cimg9.ibsrv.net/gimg/www.thi...01bad283f.jpeg |
Re: LS Swap Shopping List
Originally Posted by Sculptural
(Post 6251203)
I tried to not notch the k-member as I lack the fabrication skills to do so. The Hooker/Holley setup makes everything fit nicely.
Originally Posted by MikeP_82
(Post 6251341)
What brand/model are the mounts and pan? |
Re: LS Swap Shopping List
Originally Posted by 91ls1t56
(Post 6251312)
So I picked up an alternator relocation kit from ICT Billet. It requires the use of a truck balancer and supplied water pump spacers. I swapped out a truck pulley to car water pump to eliminate the spacers. |
Re: LS Swap Shopping List
Originally Posted by MikeP_82
(Post 6251341)
What brand/model are the mounts and pan? |
Re: LS Swap Shopping List
Originally Posted by SteelDirigible
(Post 6251354)
I'm a little confused what you're saying here. The relocation kit is for truck accessories... and you pulled the truck water pump pulley and put it on the car water pump so that you don't need the spacers? Is that correct? you're still using truck spacing? |
Re: LS Swap Shopping List
Originally Posted by skinny z
(Post 6251377)
The mounts are Hooker/Holley and are in the list at the top of this thread. The pan is also Holley but is the 302-2. |
Re: LS Swap Shopping List |
Re: LS Swap Shopping List I just want to clarify a few things with this alternator relocation kit. The spacers are 7/16" thick and with the extra gasket push everything out 1/2". I am using a truck, balancer, alternator, and belt tensioner in addition to a F-body power steering pump. The truck alternator has a different plastic cover on the back and I also trimmed off an extra mounting tab from the belt tensioner. I have not had the engine in the car with this configuration but it does appear that it will all fit.https://cimg1.ibsrv.net/gimg/www.thi...9cf44fd72b.jpg https://cimg4.ibsrv.net/gimg/www.thi...3b345476d5.jpg https://cimg0.ibsrv.net/gimg/www.thi...c50c6cae9b.jpg |
Re: LS Swap Shopping List Do you plan on running Air conditioning -- do you have emission testing in your area for your year car? As I found making it physically fit is pretty easy and there are solutions for any issue there-- there are little things that add up that you wouldn't find in building a pretty stout SBC. If running AC you will need to notch the K-member or buy relocation brackets. In my swap the biggest issues I have ran into has been in the conversion from the 700R4 auto to the T56 manual. If I had gone to a 4L60E it would of been a lot easier. I used a BMR k-member which clears everything well, but it sits the engine really close to the firewall, its almost touching my wiper motor and I had to relocate the passenger coil pack to clear the AC box. Reworking the PCM from a 4th gen Fbody and wiring isn't all that hard but using after market solution is probably easiest. My only advice would be find a swap solution from one company and not mix/match k-members/trans mounts/etc. I don't think I could of done this without a welder though, making little things like throttle cable brackets, the Y-pipe for the exhaust, mounting bracket for my brake prop valve (not needed for the LS1 swap), and other little things. So if you don't have access to one I would advise at least a cheap-o flux core welder and mask it will save you a lot on buying custom brackets. |
Re: LS Swap Shopping List When (if) I move forward on this the plan is to use the full suite of BlackHeart swap components. All the items in the list in post #1 plus the crossmember that was asked about. I've a well built 700R4 that will require an additional adapter. I'll have to find that and post it here. I understand there's an offset flexplate that also could be used. The carbed application will sidestep few issues and also allow the use of the TV cable while the ignition is taken care of by the MSD unit supplied with the intake. The accessories have been addressed here and I think I can make sense of it. No AC so that's another few hassles avoided. As for fabrication, that's not a concern. I've an arsenal of tools available when I need them. |
Re: LS Swap Shopping List The 700r4 Adapter is just a small ring. Mine was $25 from ICT Billet. |
Re: LS Swap Shopping List I'd heard about that. I had started a thread about the 700R4 to LS combination and got this reply.
Originally Posted by BadHabit
(Post 6243954)
Good for you on being able to pull a known running motor. The 5.3 usually has the dished bolt hub. The easiest, cheapest solution is the 551165 ICT billet hub adapter. Lots of them on eBay. This one is good quality. |
Re: LS Swap Shopping List In case it would benefit anyone, the Blackheart headers are on sale right now from both Jegs & Summit. |
Re: LS Swap Shopping List All things Holley/Hooker Blackheart are 20% off through Holley as well. Which is fair chunk of change considering that almost the entire swap can be with Holley parts. |
Re: LS Swap Shopping List A alternative to the BlackHeart headers are these from Speed Engineering (something most here are probably familiar with). https://www.speed-engineering.com/ls...2-ls3-ls6.html The only issue here is that I'll put myself in a position where I have build the transition from the collector to the exhaust whether or not I go with the full Hooker dual exhaust. Save a little. Spend a little. |
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