What is required...........

**Y2KPewterSS** · 08-24-2010, 07:42 PM

to convert an LS1 fbody to an LS3? Has anyone done one yet?

**konigandy6** · 08-25-2010, 06:47 PM

Originally Posted by Y2KPewterSS

to convert an LS1 fbody to an LS3? Has anyone done one yet?

Obviously the engine, and then I think you need a new wiring harness if you wanted a true LS3 since it's drive by wire, not a cable TB. But I was told there are kits for the TB to make it cable. Other than that, I don't know, I've never seen anyone do it.

**Z28boy2000** · 08-25-2010, 10:15 PM

Originally Posted by konigandy6

Obviously the engine, and then I think you need a new wiring harness if you wanted a true LS3 since it's drive by wire, not a cable TB. But I was told there are kits for the TB to make it cable. Other than that, I don't know, I've never seen anyone do it.

one of my buddys has a TSP 418 LS3 in his TA, took him a long time to figure everything out. wiring harness was a must and even with the new one i know he ran into several problems with it

**Y2KPewterSS** · 08-26-2010, 01:49 PM

Not sure if I would or not, but does the 4l60E bolt up to an LS3?

**konigandy6** · 08-26-2010, 02:40 PM

Originally Posted by Y2KPewterSS

Not sure if I would or not, but does the 4l60E bolt up to an LS3?

Not sure... there is no 4l60e used on any of the LS3 applications from what I'm seeing so far...

**Y2KPewterSS** · 08-26-2010, 02:44 PM

Originally Posted by konigandy6

Not sure... there is no 4l60e used on any of the LS3 applications from what I'm seeing so far...

I just mainly want to know if it would even be an option for me. My tranny is built, but if I would have to swap trannies as well, that would throw another wrinkle into my proposed plan.

**konigandy6** · 08-26-2010, 03:44 PM

Originally Posted by Y2KPewterSS

I just mainly want to know if it would even be an option for me. My tranny is built, but if I would have to swap trannies as well, that would throw another wrinkle into my proposed plan.

That would suck. I've been scowering GM's service info and can't find tranny bolt patterns to even compare. I have however checked around the vast interwebs:

Here is a GM High Tech write up on the swap... but for an M6
http://www.gmhightechperformance.com...wap/index.html

According to everything I'm reading... it will be a bolt in. I guess the problem lies with the wiring and computer.

**blue02Z** · 09-01-2010, 08:10 AM

Y2k you are thinking the same thing i have been. I have been looking at gm's hotcam ls3 to put in my car. Its just not that cheap

**0rion** · 09-01-2010, 08:15 AM

your tranny should bolt right up.....I don't know this as fact but don't see any reason why it wouldn't.

**Smittro** · 09-01-2010, 08:27 AM

Whatcha up to there P?? Very curious here..

Do I see a build thread in your future?

**Y2KPewterSS** · 09-01-2010, 10:21 AM

Originally Posted by 0rion

your tranny should bolt right up.....I don't know this as fact but don't see any reason why it wouldn't.

Good to know

Originally Posted by blue02Z

Y2k you are thinking the same thing i have been. I have been looking at gm's hotcam ls3 to put in my car. Its just not that cheap

Originally Posted by Smittro

Whatcha up to there P?? Very curious here..

Do I see a build thread in your future?

I don't see myself doing just a cam. If I am going to do anything to the Camaro, rearend comes first, then a whole new motor, which would hopefully be an LS3. If I get a chance to get a Vette I want, this is all a dead issue though, no more money will be spent on the Camaro. If I can't get a Vette I want, then plan B is to possibly start modding the Camaro again.

**Smittro** · 09-01-2010, 11:31 AM

Originally Posted by Y2KPewterSS

Good to know

I don't see myself doing just a cam. If I am going to do anything to the Camaro, rearend comes first, then a whole new motor, which would hopefully be an LS3. If I get a chance to get a Vette I want, this is all a dead issue though, no more money will be spent on the Camaro. If I can't get a Vette I want, then plan B is to possibly start modding the Camaro again.

Cool! Good luck bro.. Love to see that show room beuty become a monster!

**ls1wallen** · 09-01-2010, 11:50 AM

it uses the same flexplate but that might not mean anything

**Y2KPewterSS** · 09-01-2010, 01:15 PM

Originally Posted by Smittro

Cool! Good luck bro.. Love to see that show room beuty become a monster!

I would be happier with a Vette and the Camaro parked in the same garage

**Smittro** · 09-01-2010, 01:22 PM

Originally Posted by Y2KPewterSS

I would be happier with a Vette and the Camaro parked in the same garage

**shady milkman** · 09-02-2010, 05:52 AM

wish i would have seen this sooner P ....the 4l60e will bolt right up to a ls3 etc....i dont know why you would want to tho ..6l80e will fit and only cost you 20ish pounds for a much better trans...anyways

to change you will need a 24 tooth reluctor wheel or run the stock 58 tooth with a adapter for the ls1 pcm. you will need a knock sensor relocators along with cam sensor relocation...running a cable TB shouldnt be a issue as long as you use a ls1 harness (99+ i believe) as all the hardware and such are there. those are the sensors that come to mind right off hand...i know Texas speed sells a conversion kit with their gen IV engines to work in a f body for 300 bucks...so it cant be that extensive.

just to let you know i have been researching the ls3 for a little over a year ...i originally wanted a ls3 427 mated to a 6l80e but now i am thinking grabbing a ls3 out of a complete engine out of a camaro or even a l99 and removing AFM... it wouldnt be that expensive...4-5k for a complete engine with low miles .......

i like your thinking P...i think when the aftermarket catches up with the rectangluar port heads and cam selection...(which should be very soon) the ls3 will become a monster and leave all other engines gen III wise in the dust

**Smittro** · 09-02-2010, 06:06 AM

Originally Posted by shady milkman

wish i would have seen this sooner P ....the 4l60e will bolt right up to a ls3 etc....i dont know why you would want to tho ..6l80e will fit and only cost you 20ish pounds for a much better trans...anyways

to change you will need a 24 tooth reluctor wheel or run the stock 58 tooth with a adapter for the ls1 pcm. you will need a knock sensor relocators along with cam sensor relocation...running a cable TB shouldnt be a issue as long as you use a ls1 harness (99+ i believe) as all the hardware and such are there. those are the sensors that come to mind right off hand...i know Texas speed sells a conversion kit with their gen IV engines to work in a f body for 300 bucks...so it cant be that extensive.

just to let you know i have been researching the ls3 for a little over a year ...i originally wanted a ls3 427 mated to a 6l80e but now i am thinking grabbing a ls3 out of a complete engine out of a camaro or even a l99 and removing AFM... it wouldnt be that expensive...4-5k for a complete engine with low miles .......

i like your thinking P...i think when the aftermarket catches up with the rectangluar port heads and cam selection...(which should be very soon) the ls3 will become a monster and leave all other engines gen III wise in the dust

According to Frost it will not fit in our cars easily and the tunel would need hammered to run the cables.. Also it's a very heavy tranny. Along with the harness needing changed and so forth.. Prestons 4l60e tranny is built already.. Frost mentioned also the th400 would be a more solid choice if just looking for more strength..

I just had this very discussion with him a couple of days ago when I mentioned the same as you did in another members thread..

**Smittro** · 09-02-2010, 06:10 AM

Here ya go Shady.. Check out post #9..http://www.ls1.com/forums/showthread.php?t=143377

**shady milkman** · 09-02-2010, 06:12 AM

Originally Posted by Smittro

According to Frost it will not fit in our cars easily and the tunel would need hammered to run the cables.. Also it's a very heavy tranny. Along with the harness needing changed and so forth.. Prestons 4l60e tranny is built already.. Frost mentioned also the th400 would be a more solid choice if just looking for more strength..

I just had this very discussion with him a couple of days ago when I mentioned the same as you did in another members thread..

oh i never said easy

i like it for the fact it is a 6 speed...and the ratios are pretty legit ..i know the 6l80e is shorter than the 4l60e ..and the bulfk of the 6l80e is in the top..so hammering would be modding...also it requires a 58 tooth reluctor wheel to function properly..in which case it would be wise to get the harness...or get the whole combo from speartech