Jimrobski

I think my C4 might be a Frankenstein.
I think I might have a 1993 LT1 in my '92.
Let me explain.

I was watching a Corvette Central video on how to tell the different C4s apart,
It was a great video.
When covering the 1993 C4, the guy notes that in '93 they did away with the magnesium rocker covers from '92 and used composite ones from then on, making the '92 LT1 unique in that regard.

I opened the hood of my 1992 coupe and verified that I have composite covers.

Now I need to figure out if the engine has been swapped, just the covers have been swapped, or did they start using the composite cover during 1992 as they started switching over?

Anybody have any ideas?
Where is that damn pad on my block with the serial number so I can see if the car is numbers matching?

Thanks!!

FAUEE

I think the composite covers came in 94. Either way, many have swapped them over. It's far more likely that you have just the valve covers swapped compared to an engine from a 93.

WVZR-1

You might check the VIN DERIVATIVE - I believe '93 is correct for the change. Many have changed.to composites. There's multiple engine components that could be used for verification but I believe '92 would have the same location for VIN DERIVATIVE as this image displays. Substitute N ('92) for model year.

Jimrobski

Thank you very much for your help, guys!

vetteLT193

Very likely swapped valve covers only. Easy job and a nice looking upgrade

BLKMAMBA

93 they started the Composite's

dizwiz24

They all seem like franken-vettes. All the c4s

my 93 has a blue tag zf6 (with a remanufactured plaque) and i bought it with 26k miles on it.)

MyOtherCar

Mine as well but with 24K on the clock when I bought it. Difference is, I know why.
PO was power shifting 2nd to 3rd, but missed and went in to 1st gear by mistake. Told me the engine over-revved (ya think?) and naturally the transmission suffered irreputable harm. Don't know if the engine suffered damage, I think not because of the rev limiter, but PO told me replaced the trans, clutch, flywheel.

AgentEran

pologreen1

Miles on new vettes usually remain low. Someone probably replaced it with any trans, or blue specifically as an "upgrade". What year did you buy the car?

I figured you'd be a black tag guy.

dizwiz24

I bought it in 2001. The car must have had 5 previous owners. It changed hands a bunch.
one owner must have been female bc I found nail polish stain by the door lock. Its 6 spd so i doubt it was a dude letting his wife drive it. Prob a chick into cars👍.

i wish it had the black tag zf.

fo mKe matters more weird the blue tag has the black tag guide tube and fhrowout bearing on it! :headspin