Engine pulled today, color of exhaust valve?

[1987stangman]

I pulled my 87' GT's original motor Sunday. Today I started tearing down the motor and noticed that the front 2 exaust ports on the right side of the motor where covered in white (see pic). The left side was the same but yet the back 2 ports were normal. Before I pulled the motor it ran but was giving me a white smoke at start up and at high RPM's. I do have a Cobra intake on it that has been there for 2 years and this issues just started out of the blue and the car ran perfect untill this smoke issue started. I started to thnk valve seals or rings but now I am not sure. Motor has 170K on it with great oil pressure. Input appreciated!

 

[dgollem]

Sounds like you might of had a slight head gasket leak

 

[Mr. Rustypwnz]

hell no its fine, ive never seen a stock 5.0 without white exhaust valves.. it was running fine..

 

[stang22]

Maybe a little bit on the lean side, but that is just my opinion.

Tim

 

[Mustang5L5]

I wouldn't say it's normal, but i can't quite offer a good explanation for it without seeing the condition of the HG and a compression check #'s for the engine

 

[85_SS_302_Coupe]

Every single stock engine that i've taken the heads off of had at least a few white valves. I've never heard a good explanation.

 

[Fast63]

I'm going to have to agree that it's pretty normal. If anything it was running a little lean. It may also have something to do with your increase in initial timing and maybe even because you were running headers.

 

[1987stangman]

I wouldn't say it's normal, but i can't quite offer a good explanation for it without seeing the condition of the HG and a compression check #'s for the engine

I did a compression check and it checks out about 150 accross the board, like I say it ran good just ate oil and was giving radom blusish smoke at start up and at high RPM's. I have a pic of the HG and heads, all looks normal. I just thought it was odd that only the front 2 exh ports on each side of the motor had white carbon and not the back two! Seems like it should be uniform, especially from an EFI motor.