ss#1230

hey guys, im just wanting to know whats involved in swaping a LT1 for LS1.

does it have the same motormount locations, etc???

also, i live in california so id have to comply with smog, what smog equipment would i need to use....do the LS1s have air pumps, egrvalves etc....

thanks, i only know the basics about the LS1s. im completely in the dark as far as the details.......

jeremy

Capn Pete

Ugh ... I don't think that many people have actually gone through with this swap? Seems like way more work than it's worth?? Pretty much EVERYTHING has to be worked over, and I think you may even need an aftermarket hood to clear the taller LS1 by the time you're finished!? (probably the least of anyone's concern, really). The mounts are different, the flywheel is different (not sure if you could just simply bolt on the LT1 flywheel to the LS1 crank and that would work?? I doubt it?!

If you want an LS1 (not sure why, 'cause I'm sure your current setup is fast as hell?!) it's probably easier to sell your LT1 car and buy an LS1 car.

corbraeater

ss#1230 do you pass smog right now with your current set-up

TraceZ

You'll need to replace *everything*

Even the k-member is different. The LT1 fuel system has a return line and the LS1 fuel system dead-ends. The radiators are different. the gauges in the dash are not compatable. PCM, Engine harness, transmission, clutch, exhaust manifolds... everything

This a a swap that would seriously not be worth it, IMO. Why not just sell the LT1, and buy an LS1 car? that way you'd get the LS1 style brakes and the LS1 aluminum driveshaft too.

Antz97ZNJ

Yea this exact subject has been posed time and time again...try the search function...but most would say put the money into the LT1

Keliente@pcmforless

LS1 doesn't equal aluminum driveshaft Plenty of them had steel.

Black9TA8

The only LS1's that have a steel driveshaft are A4's that came with 2.73 gears. All the rest of the LS1's have an aluminum driveshaft.


IMHO it's not worth it. It's expensive and involved. You'd be better off building your LT1 or buying an LS1. With the money you'll spend putting an LS1 into your LT1, you could have bought an LS1 car/motor.

UtOhCop

Don't swap in an LS1. Go straight to an LT4.

ss#1230

well thanks for the replys.

the reason i was thinking about it is that my father-in-law is a gm mechanic and he said i could put a LS1 in and it would be smog legal if i did it right. the reason i considered it is because he said it has less smog equipment (so that means less failure of smog equipment). and i know that they are a little easier to do routine maintenace on.....

the LT1 can be a bit of a chore to do plugs and wires. especially since ive got to take the supercharger and bracket out to get to the plugs and wires on the driver's side. and to take that out, ive got to take out cooling fans, drop the sway bar etc etc. it took me 6 hours to do the plugs and wires.......it would only be about 1-2 hours for a naturally aspirated LT1.

i think ill just stick with the supernatural LT1 and make the bottom end tough so i wont have to worry about destroying the pistons.......and ill probably up the boost a little too.....hehehe

plus i like the sound of the LT1 over the LS1........no offense guys.

ss#1230

well i would except after i had ion tune it, i started getting a code for the egr. everything in the egr system has checked out. we think it could be something changed with the MAP.

im going to take the belt off the blower to make the manifold pressures go back to normal.....see if thatll fix it. if it does, then ill just smog it without the supercharger belt on.......or just take the blower off.

after i put the cam an rocker arms in we did a sniffer test and it blew really clean. so as long as they dont notice the cam lope.......i should be fine. my tiny muffler make the lope pretty obvious....

ss#1230

i actually had the local dealership tell me many years ago that the would put an aluminum shaft on if i wanted to, because the were having problems with driveshaft vibrations and GM was replacing them as long as they were under warranty. i didnt do it because i didnt have the vibration and i didnt want those monkeys messing with my car if the didnt have to!!!!

ss#1230

LT4 heads are a no go. raises the compression. maybe when im building the new motor or redoing this one, ill get some trickflow heads.....

yournamehere

Hey 1320,
I was thinking about the same thing. Blew a head gasket in my '96 Z.
Found a machine shop in Glendale (AZ) that has an exchange program
with STOCK replacement LT1's. The long block is going to be $2350.00
I would have swapped it myself, but about 14 weeks or so ago I was
hit by a car on my ZRX 1200 Kawasaki. Bike is back together,
I am not.
The machine shop, King Balancing, recommended a mechanic they use
to put the long block in my Z28. He will let me supply as many new parts
as I can afford while the motor is being swapped. Cost of swap : $1300.00
So, with misc parts, about $4400.00
Sound like a good deal ? The LT1, again, will be completly stock with a
3 year warranty.
The urge to mod is strong with everything I drive/ride, but I have'nt
drove the Camaro for almost 9 months now. Still making payments though.
What you think ?
Thanks !
Ken

CJ Black LS1 Z28 M6

Yup amen to that thats why i have 1 of each Again like others said It would be cheaper to buy a LS1 car. I had 2 LT1 Z28's as of yesterday and then i traded one in on my SS. During my search on cars I ended up finding 98 Z28s cheap as $6500. Good Luck

niteninja

Then why is it a 93 can have the stock dash and guages and transmission and radiator?? And yes the stock hood still fits.