I need your opinion.

2kwik4u

Resident slow guy
Re: I need your opinion.

About the same build??!?!?!??!

Holy jeeze they are two completely different sets of worms.

IMO, I'd base the decision on how much fabrication you are willing to do. Lots of fab skills = LSx swap, Lots of money = 4.3 build.
 

dgoodhue

BuSTeD 4.3
Re: I need your opinion.

Also if you do an turbo LSx (or an all out 4.3 Build) you going to need to spend quite a bit of money on the drivetrain.
 

Norm

Donating Member
Re: I need your opinion.

I'm in the process of getting ls1 stuff together. What tranny are you thinking of using? That's the biggest difference. Keeping the 700r4 or going 4l80-e. Weight out your options, get all the prices on paper. Are you thinking turbo ls1 or just stock?
 

jasonpickett

New member
Re: I need your opinion.

I'm in the process of getting ls1 stuff together. What tranny are you thinking of using? That's the biggest difference. Keeping the 700r4 or going 4l80-e. Weight out your options, get all the prices on paper. Are you thinking turbo ls1 or just stock?

Going to use the 4l80e. Also going to turbo the ls1 if I decide to do it.
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Review Portable Vaporizer
 
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the baPhoon

Active member
Re: I need your opinion.

On my ty, im gona stay V6 and build the hell out of it.

I love the look on peoples faces when they get downright smashed by a 6 :)
And i love the angry go-cart sound a built 4.3 makes heh.
The V6 is what keeps us apart from alot of the 1320 racers. But like its been said, parts are fewer and far between. And when you find the part you want, they ask for 3 refrences and your first born child.
Its expensive as hell. Personally i wouldnt have it any other way on the ty.



But, thats not saying i wont get a blown sy/ty and smack a single T LSx in it... ;)
 

Norm

Donating Member
Re: I need your opinion.

Going to use the 4l80e. Also going to turbo the ls1 if I decide to do it.

Going the v6 build would probably be cheaper . You don't need to buy a 4l80e( already have a tranny). A ls1 is going to be 1500 plus $, then a turbo, I think you would end up spending 10k to do what you are planning to do.
 

jasonpickett

New member
Re: I need your opinion.

Going the v6 build would probably be cheaper . You don't need to buy a 4l80e( already have a tranny). A ls1 is going to be 1500 plus $, then a turbo, I think you would end up spending 10k to do what you are planning to do.

I getting a 4l80e because I don't really care to much for the 700r4. They can't hold up to me. I was going to do a 6.0l iron block. I can get the engine, tranny, ecu, wiring harness from my dads friend who owns a salvage yard for around $600-$700. As far as trans the reason why I want a 4l80e is because I'm not going to lie. I drive my truck like I ride my women. FAST and HARD. Plus they hold up to more power. I am leaning more towards the lsx because they can produce more power and a lot less problems. Everybody that I know that puts down as much power as I want is always working on them and also they don't really make a head gasket that can suport over 30lbs of boost. I am looking to run a t76 or a t88.

Jason
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HEADSHOP
 
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warmpancakes

New member
Re: I need your opinion.

dollar for dollar you will be way ahead doing a lsx, bone stock ls2 with 8lbs of boost will make 600 hp on pump gas to do the same with a v6 add 15k
 

jpalmer

New member
Re: I need your opinion.

lsx swap, one its cool because not that many people have done it and it will be more reliable and cheaper in the long run if you have to rebuild. oh and it can be made faster for cheaper
 

SYCLONE#1531

'MOFOFAST
Re: I need your opinion.

I say go with the Ls! I am considering swaping a 434ci afr headed (BLOW THRU) F1R Procharged 8 in my SY. :tup::2cents:
 

Tooky

Serious about performance
Re: I need your opinion.

I assume you have read this. A lot of info here. He hit some serious snags with the 4L80, and the oil pan. I would suggest taking the time to read the whole thing.

I tend to agree with DaveP. I wouldn't even consider the turbo-LS1 swap unless you are both a master fabricator AND a turbo EFI tuner.... or extraordinarily gifted, motivated, and ambitious.

Look at how many guys have set down this road only to find themselves with a truck that still doesn't drive 2...3....5 years later. There's more than a handful and so far only ONE guy (to my knowledge) has got a truck with a turbo LS1 that runs, drives, and made it down the track (10.9 @ 126) and he is already pulling his motor back out to deal with an oil pressure issue.

I'm convinced the turbo-LS1 swap is FAR more involved and complicated than it appears on the surface. If not, there would be a lot more up & running by now (the LS1 has been out for 11 years now). Just sorting out the HD transmission and oil pan issues could take more than a year alone depending how lucky/unlucky you are.

Then again you never said anything about what your goals are (drag racing, streetability, target ET/MPH, intended usage) so it's hard to help you decide with such limited information? :dunno:
 

PPI Typhoon

DIY Madman
Re: I need your opinion.

I actually think the LSx swap isn't as complicated as people make it out to be. The parts required to do the swap are few, and the currently available ones are not as good as they could be. ERUE from Turbotime has been great, but the fact is, both my oilpan and motor mounts needed modification in order to fit correctly. I think it's great he did the R&D, but I think it needs refining at this point. Mind you, the modifications were done with a die grinder, a drill and a file. It's nothing major.

There are a few people either finished or currently working on the LSx swap (I'm one currently working) and it really comes down to planning. I think TT's items are a great starting point for someone doing the swap. Now some others went the route of custom motor mounts, custom oilpans, etc. I chose not to. I'm not a fabricator. I'm technically minded, but I'm not even close to being a fabricator. The only reall fabricating I have left to do on my own is the turbo piping, both hot and cold. I have a fabricator locally that can do such a thing and do it well for a reasonable price.

All in all, an LSx swap with a 4L80E, and a turbo is going to run me about $15k when all is said and done. While that may seem like a lot, there are some positive points:

Better gas mileage
Easier to tune (IMO)
Better aftermarket for parts
Durable even in stock form (both engine and transmission)
Modern technology

Now you do lose the fact of the "V6". I've owned 2 Typhoons, I'm not a purist. I appreciate them for what they are, but when I wanted to go faster........the LSx swap made the most sense.

Now you'll get people like Robert and his nutswingers that say "You don't need a V8, blah blah blah", but I personally don't have that much money to dump into my truck. My whole family owns Corvettes, both C5's and a C6, mother, father and brother. I've seen what they can do and the newer generation motors are amazing. I'm still going to be turbo, I'm still going to be AWD. I'm still going to have the "corvette" influenced truck. I'll just have a "hybrid" :)

It's all about what YOU want. You want to keep it pure?? Keep a V6. But then when you get to modifying your V6 to go faster, is it still a "pure" truck? Is a 4-bolt main conversion blasphemy? Some people think so. It's your truck, do whatever the hell you want with it. :tup:
 

PPI Typhoon

DIY Madman
Re: I need your opinion.

I assume you have read this. A lot of info here. He hit some serious snags with the 4L80, and the oil pan. I would suggest taking the time to read the whole thing.

I wouldn't call them "serious" snags. I've not hit any problem that's stopped me, just simply set me back a few days/hours.

The main problems I've encountered are:

  • TT motor mounts - received a wrong set from ERUE at first.
  • TT oilpan - needed 2 holes drilled and part of the pan's inner lip ground down to clear the pickup
  • Windage tray needed some modification for the TT oilpan - die grinder and 20 minutes.

Most of the other snags are more for personal reasons. I lost the place to work on it since early in the year and the truck sat in storage.

There is really no problem or snag with the 4L80E. I had to bend back the lip for clearance in the tunnel. That took 10 minutes with a 5lb hammer. Other than that it's education on the 80E. I've sourced a crossmember and other various parts from Jeff Scott. I also purchased the input shaft for the transfer case from George Blake. That's a custom part......it just took a while. Not really a snag. Last thing I have to buy is the spacer plate/adapter from Mike Lee to mate the transfer case to the transmission. Then it's all going in. I've just been working on educating myself so I'm reasonably prepared when I'm under the truck putting that big biotch into it's mount. Thankfully there are people like Jeff Scott and George Blake. Both have helped me in various ways with the 80E swap.

The reality is, I need to hook up the AFPR, running the output line to the fuel rail. Then with everything i have, theoretically I can fire up the motor. I have the harness and it's a 4-wire hookup beyond plugging it into the appropriate sensors. I'm just taking my time at this point. I enjoy spending time with my wife and son, and only work on the truck in between of everything else.

I don't regret starting the project and I have every intention to continue it. :tup:
 

jasonpickett

New member
Re: I need your opinion.

I believe I am going to get everything I need for the lsx swap. Build the engine. Run the v6 for now and then do the swap. I believe it would be more logical to do the swap for the power I want to have.

Jason
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No2 vapir
 
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