jhshnh

Was wondering if this has been attempted, and how to go about it with the harness and economic. I think the motor mounts and exhaust will hook right up, along with transmission if I'm not mistaken.

Toddoky

The mounts won't hook up directly as the block mounting bolt patterns and fore/aft positioning from the bellhousing mating surface are different. The exhaust flange bolt patterns are also different.

transamtom

iTrader: (8)

They came with an LT1 from 93-97 J/K

I found this installation guide

http://www.chevrolet.com/content/dam...2019328729.pdf

Beanslsxnova

iTrader: (1)

Why not put a 4.8/5.3 in it. Cheaper easier and a stock 5.3 out of a truck would probably be faster lol

ls1nova71

iTrader: (4)

New LT1 or old genII LT1?

jhshnh

New LT1.

jhshnh

I have kooks headers on my 00 Z28, I wonder if the flanges are the same? Doesn't look like it.

transamtom

iTrader: (8)

Probably not the LT1 was a clean sheet design.

Its a bit more compact than the LS.

It may bolt to the head but the exhaust ports are slightly different and the motor mounts location may change the way the headers are routed.

slowman

We've got you covered on a standalone wiring harness, when you get to that point. http://www.speartech.com/category_s/1836.htm

Motor mounts are different from LS. As well as the exhaust manifold bolt pattern.

383z

iTrader: (2)

I've been wondering the same thing and looking out for a build like this, but haven't seen one.

I just seen a long block Gen 5 LT1 on eBay for $6,200. I have more than that in my current LT1 and will have more power, but I like the idea of a new LT1 under the hood.

Jimbo1367

383Z,
then what r you waitng for. Jump on that before its gone !!!!! !!

Rob94hawk

iTrader: (1)

I want to know of the Gen V LT1 can physically fit into a 4th gen fbody.

I can't believe after all this time no one has tried to do it.

Project GatTagO

iTrader: (7)

The LT engine are basically the same size as the LS engines, so I don't see why it would not fit. To make it even easier, Holley just release clam shell engine mounts that bolt to the LT engine and mimic the 4th gen Camaro mounts. In other words, it is basically plug-N-play.

https://www.holley.com/products/exha...ts/71221019HKR

You obviously need different headers because the LT exhaust flanges are different than LS. You also need to figure out all of the electronics.

Andrew

383z

iTrader: (2)

That's the hard part...headers, power steering, fuel...

Project GatTagO

iTrader: (7)

Holley (and other companies) makes a front accessory drive for the LT1. That takes care of power steering. Fuel is easy, just an upgraded intank pump. Stock Gen6 exhaust manifolds might not be sexy but I bet they fit a 4th gen.

Andrew

Rob94hawk

iTrader: (1)

I'm making an educated guess because of the 4th gen's cowl probably only naturally aspirated LT1's would fit.

As for fuel I already have an upgraded Walbro pump. But like it was said, power steering, headers, & gauges might pose some roadblocks.

And what about the transmission?

Smaknu03

Hopefully I will be able to alleviate some concerns and questions on this subject, as I am literally taking on this swap. I have a LT1/8l90 dropout, just pulled everything out of the engine bay of my 4th gen, and will be doing this swap over the next few weeks. I will document everything the best that I can, and make a thread so that whoever is interested, can follow. As of right now, the only road block I can see, is getting a drive shaft to go from the 8l90 to an 8.8.

383z

iTrader: (2)

Smaknu03!
I want to see this!
That's a huge trans to put in there as you know. Are you taking out the middle console or trimming it down?

Smaknu03

I have not quite made it that far yet. I just ordered all the controllers, gas pedal, etc. Once the mounts show up I will be able to actually drop everything in. If I have to modify the tunnel, I will more than likely cut it out, and re fab it to make it look factory. As for gauges, I was thinking about running a motec dash and integrating it into the factory cluster bezel. Possibly paddle shifter setup to control the "manual" mode of the trans? But as of now, the main focus is getting everything in the car and running. As soon as parts show up, I will start a build thread for this.

jhshnh