Sounds tempting, if the motor mounts are only $ 80. Can't help but wonder what other problems I might run into , in trying to wedge an LS1 into my manual trans equipped 93 .... Need to look more into the weight difference between stock LT1 and the LS1.

http://www.ls1tech.com/forums/conver...-corvette.html

 

Many people have done, it is easier w/ an auto tranny, as the LSx engines sit back more than the gen 1 engines. Check out this thread by ZF Doc http://www.zfdoc.com/projects.htm

 

there is a around a 60# difference from SBC to LS. yes the adapters are cheap. no it will not bolt up to the ZF easily.

This is definitely not for those faint of heart or light of wallet. I'm in the middle of still sourcing parts. you will need at least:

1. Engine harness( speartech still hasn't gotten back to me yet) also you can rework a 99 F-Body harness.
2. 0411 ECU reflashed
3. the adapter plates
4. complete LS1 with the C5 accessories
5. be prepared to bend your PS lines to work. has to be done.
6. 4-fuse add on block.
7. call melrose for the headers. otherwise you can use the LS6 Zo6 manifolds. they will clear the frame.
8. Fbody oil pan,oil pump pickup tube, baffle etc. otherwise you may have to notch the frame more than you want to.
9. new trans. 700r won't live long stock behind a stock LS.
10. new converter to adapt the LS to the 700r( if you go with a built one.
10A. adapter for the 4L60E to mate to the C-Beam.
11. corvette damper,waterpump etc. camaro stuff hits the frame.
12. cut the new $150 water pump to clear the A-Arm.
13. you'll need the adapter fittings from summit to mate the LS1 rail to the early c4 hard lines.
14. flip the LS rail to get the outlet on the correct side of the engine.
15. boost a pump may be needed should use an uprgared fuel pump. LS's run higher rail pressures.
16. PRAY.
17. go to church, get forgiveness. you are going to curse alot!
18. marriage counseling. you'll need it when you spouse finds the receipts for all of this.

otherwise the swap is a snap.

 

copo is doind it right now, and raidmajik on another forum did it and many many more, the LS had=s been out for 12 years as long as they made c4's it's been done a lot now

 

Thats a nice list! When my l98 takes a ****, i'm gonna park it to save money and put one of these badboys in..

just for shts and giggles, i called McDill Auto Wrecking (local junkyard) and they have a 6.0 liter from a truck for 1200...

 

im looking to do this swap also

 

Correct me if I'm wrong, but what exactly is the big appeal of dropping in an LS1 motor that only makes 30-40 more hp than an LT1? It seems like a lot of extra work just for the satisfaction to have an LS.

You could always use the stock shortblock and slap on an aftermarket set of vortec heads, intake, TB, and maybe ECU or retune. Would be about 1/2 of the work, roughly the same cost unless the engine swap requires a new tranny, and you'll end up re-arranging the exhaust in either case.

You'd get a lot more horsepower with that combo and get to pick out the heads for the application, maybe even a cam swap if you lift the motor. I just don't see the reason when the LS1 makes marginally more power, now if it was a BBC I could see justification.

 

but with bolt ons, the LS engines make ridiculous power. In the Horsepower TV show, the grabbed a LS1 and removed all electronics and installed a carburator and MSD distributor (old school). It was gross HP but it pulled 140 HP over stock.

If you would like a LS engine, buy a C5-C6. It will be cheaper and cost effective

 

but what if you get a roller for 2000, then an engine(1500), th400(free) and all the swap parts(2000-4000) and put it in and have 2900 lb car. sounds a little cheaper than a c5.

 

LSx does not make marginally more power than an LT1. Sure, a bone stock LS1 is close, but an L92, bone stock out of an Escalade, is 400 hp. Someone did a test (I forget who), they got a 6.0L from a junkyard out of a regular old 2500 truck. This was a base LQ4, low compression 6.0L that they sold millions off. It had 100K+ miles. Put on a set of new L92 heads (under $800 complete from GM), some new, good valve springs, healthy cam, long tubes, and made 550 at the crank on a bone stock 100K+ bottom end. No LT1 is going to do that.

And I'm not even going to get into the good stuff (aka LS7). Just using truck engine parts you can blow away any Gen II stuff, period.

Also, let's not forget an aluminum and plastic LSx is going to weigh some 80 lbs lighter than an LT1, and that is off of the nose, right where you need to lose it.


LT1 heads, even the aftermarket ones, can't touch good LSx stuff; throw in the fact that other than rod bolts the stock LSx bottom ends are very, very stout and you come to realize than the LSx series is a much, much better performance engine than the LT1 will ever be (and it doesn't have an opti-spark!!), and you can build a mean one using only truck parts.

 

also, if you are looking at the 6.0L swap here's a tidbit.

Unless you only want to use a 4l80E you need to use the LQ4/LQ9 from 2003 and up. there are some grey areas on the 2002. it may work it may not. the crank snout is different on the early LQ's. also if you use the L92 you cannot use a regular LS intake.

 

Give me a few weeks and if ever thing works out as planned I can tell you how to bolt in a LS/ZF. I'm with in a 1/4 inch of having it done. I am finishing the hot side to the turbo this week.

http://forums.corvetteforum.com/c4-f...-out-here.html