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Every dark cloud has a silver lining? LSX swap?

 
Old 03-06-2011, 06:50 PM
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Default Every dark cloud has a silver lining? LSX swap?

Recently I posted a short video of my engine. A tuner came over and game a base tune. We set the valves warm..they were nice and quiet. We drove it around a bit then called it a night. He mentioned the valves sounded a little loose when returned. Long story short I lost a few lobes on the cam and oil pressure. Time to rebuild the bottom end. It only had about 3-5k on it.

SOOO...
I was thinking maybe it's time for and LSX swap. Right now its up in the air. The biggest issue for me would be making the A/C work.
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Old 03-06-2011, 11:43 PM
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Give the folks at Corvette Central a call. I was at a demonstration at Carlisle a couple of years ago where a couple of their guys had done this swap into an 87 and seemed to have figured out the problems such as engine mounts, fly by wire throttle, transmission adaptor, AC, power steering, cruise control, cooling and instrumentation. The only problem they could not figure out was how to get the gas mileage display to work.
They should be able to provide you with some contact numbers.
Good luck!
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Old 03-06-2011, 11:55 PM
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Here are the pics I took:





Corvette Fever magazine also had their card there. Maybe their archived articles are still available. Here are those pics that I took:




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Old 03-07-2011, 08:56 AM
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Thanks
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Old 03-07-2011, 09:01 AM
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I'm still up in the air about the LS swap. It is my first choice but it would obviously be easier and cheaper to rebuild. Thanks for the info.
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Old 03-07-2011, 11:13 PM
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If an aftermarket company would come up with step-by-step instructions to do an LSX swap that came with a kit containing the necessary parts I think they would get a lot of business!
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Old 03-08-2011, 09:15 AM
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Originally Posted by 96polovette View Post
If an aftermarket company would come up with step-by-step instructions to do an LSX swap that came with a kit containing the necessary parts I think they would get a lot of business!
If that were available would jump on it. The time it will take and the added aggravation is what has me on the fence.
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Old 03-09-2011, 04:47 PM
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Originally Posted by [email protected] View Post
If that were available would jump on it. The time it will take and the added aggravation is what has me on the fence.
We did a writeup on this exact subject. Hopefully it will help: LS Engine Swap for C4 Corvettes
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Old 03-09-2011, 05:58 PM
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Originally Posted by CorvetteCentral.com View Post
We did a writeup on this exact subject. Hopefully it will help: LS Engine Swap for C4 Corvettes
Awesome write up!
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Old 03-09-2011, 07:33 PM
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Heres my take on it:

1. If your plans are FI > 600 rwhp mega boost, mega HP, then an SBC or LTx, with blowerworks hardware is the way to go.

This is the route ive chosen on my 93 c4.

2. If your plans are N/A <600 rwhp, roadrace, autoX, then go Lsx. dont forget the weight savings !
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Old 03-10-2011, 07:07 AM
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sorry to hear of your troubles. did your engine have a factory roller cam ? and the lobes failed in less than 5,000 miles ? Not saying I wouldn't do an LSX swap if I was in a position to do so, but I'd investigate what caused the original failure and maybe reinstall a new (hotter?) cam. Was it a metallurgical failure ? an oiling problem ? grossly misadjusted or defective lifters ?
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Old 03-10-2011, 07:52 AM
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Originally Posted by [email protected] View Post
Recently I posted a short video of my engine. A tuner came over and game a base tune. We set the valves warm..they were nice and quiet. We drove it around a bit then called it a night. He mentioned the valves sounded a little loose when returned. Long story short I lost a few lobes on the cam and oil pressure. Time to rebuild the bottom end. It only had about 3-5k on it.

SOOO...
I was thinking maybe it's time for and LSX swap. Right now its up in the air. The biggest issue for me would be making the A/C work.
I'm really sorry to hear about your troubles
don't want to beat a dead horse but ...what happened ?
it only had 3-5k ? and you lost your cam ? That's very strange
i have been in fear of that and many more things but
if i were you rebuild it or not i would like to know the source
What hapenned !
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Old 03-10-2011, 12:42 PM
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Originally Posted by mtwoolford View Post
sorry to hear of your troubles. did your engine have a factory roller cam ? and the lobes failed in less than 5,000 miles ? Not saying I wouldn't do an LSX swap if I was in a position to do so, but I'd investigate what caused the original failure and maybe reinstall a new (hotter?) cam. Was it a metallurgical failure ? an oiling problem ? grossly misadjusted or defective lifters ?
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Old 03-10-2011, 01:22 PM
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Originally Posted by CorvetteCentral.com View Post
We did a writeup on this exact subject. Hopefully it will help: LS Engine Swap for C4 Corvettes
Thank you
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Old 03-10-2011, 01:35 PM
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Originally Posted by Calderone View Post
I'm really sorry to hear about your troubles
don't want to beat a dead horse but ...what happened ?
it only had 3-5k ? and you lost your cam ? That's very strange
i have been in fear of that and many more things but
if i were you rebuild it or not i would like to know the source
What hapenned !
I don't know yet buddy but I have a feeling when I get it apart I'm going to find it was my fault.
The car had a rebuilt engine when I bought it. The head gasket was blown. I replaced the head gaskets had the heads redone and a new cam.I topped it off with LT runners then the HSR. It ran fine for a good 1k. I was disappointed in the power so I put a set of GMPP Fast burn heads on it it was apart for something like 6 months the second time.This is an estimate I'm not sure. After I put the heads on I had to get different exhaust and mod a Vortec HSR to fit.
I put it back together and drove it one day after we tuned it. Then it lost oil pressure.
I will be taking it appart this weekend. This has never happened to me before but it has happened to friends that are more savvy than I. Maybe the Hot Rod Gods intended for me to get an LS1.
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Old 03-10-2011, 03:07 PM
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Originally Posted by mtwoolford View Post
sorry to hear of your troubles. did your engine have a factory roller cam ? and the lobes failed in less than 5,000 miles ? Not saying I wouldn't do an LSX swap if I was in a position to do so, but I'd investigate what caused the original failure and maybe reinstall a new (hotter?) cam. Was it a metallurgical failure ? an oiling problem ? grossly misadjusted or defective lifters ?
I'm sorry I forgot to mention it was a CC502 cam and the factory roller lifters. I was running hardened 7.195 pushrods and factory stamped rockers.
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Old 03-11-2011, 12:12 AM
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You might enjoy looking at my thread on the tech form entitled "LT1 conversion to LS3 hot cam". Just go to my profile and look for the threads I've started. You can also google "C4orce2" and go to my photobucket. It has an album entitled "build of C4orce2" with a lot of pictures of the build. The swap was not quick or cheap, but well worth it.
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