Backwards head gasket = misfire?

[Not_Devin101YT]

Howdy, so I have a buddy with a 2007 dodge ram 5.7L hemi. Recently we had to replace the head gasket on the driver side. He got a full head gasket kit from fel-pro. Now I noticed that after he had put together everything that the head gasket we didn't use says on the bottom "Top L" which would be the driver side.
Now he has said that all the holes lined up and he doesn't think it's a big deal. I just want to ask and see what ya'll say.
Thank you and I appreciate all ya'lls help

 

[Not_Devin101YT]

Oh and now that the truck is running it has a misfire on cylinder 1

 

[Fast69Mopar]

Howdy, so I have a buddy with a 2007 dodge ram 5.7L hemi. Recently we had to replace the head gasket on the driver side. He got a full head gasket kit from fel-pro. Now I noticed that after he had put together everything that the head gasket we didn't use says on the bottom "Top L" which would be the driver side.
Now he has said that all the holes lined up and he doesn't think it's a big deal. I just want to ask and see what ya'll say.
Thank you and I appreciate all ya'lls help

The head gaskets are LEFT and RIGHT specific due to the alignment of the oil drain passages in the block. If he used a right head gasket on the left side of the block then he blocked off the rear oil drain.

 

[jws123]

Your going to have to pull the heads new gaskets new bolts. Left drivers side right pass side.