Dyosis

iTrader: (3)

I was changing my oil and removed my skip shift eliminator (tuned out) today and was under the car with a flashlight tracking what might be a small oil leak. Anyways, I happened to look at the back side of the driver's side head, there is a white "X" written on it and just below that is a yellow section that looks like glue residue where (duct) tape might of been. The casting # on the head is 806 and it is using the 98 style perimeter bolt valve covers.

I do know that my PCM was swapped at one point before I had the car. When I pulled the PCM to install the SLP fan switch, the sticker said it was a remanufactured unit. With that said, is it possible the motor or heads were swapped at some point?

Any ideas?

Edit - The back side of the passenger head doesn't have anything written on it and is clean.

armyboyatc

iTrader: (29)

That would be my guess. I cant see them putting that on there from the factory

180ls1

iTrader: (4)

I might be wrong but some of the 98's had headgasket issues, your car might have been one and had the issue fixed. That would be my guess.

Bo White

iTrader: (59)

Also, there were alot of cars that bent pushrods when the LS engine first came out and the valves tapped the pistons. It may have been a warranty repair. My buddy had this happen on his 99 Firehawk not too long after he bought it new.