How to tell if the heads are lifting?

[Blazingstroke06]

Hello all! I have an 06 F350 6.0. It is all stock sans a 5" MBRP. I installed an ege insight gauge in it about four months ago and I notice that the coolant temps average 189-190. If I drive the truck hard unloaded for a few jounts I have seen the temp get up to 210. My concern is that is a 20 degree diff, Is this normal with a dielse or are the bolts a lil streched and the heads are lifting a lil? after driving nice or idleing the temps come back down and I have never noticed any puking(the coolant resovor is always dry around it. I know temps will rise when beating on it but 20 degrees? I am looking to put a tuner on but if there is a headblot issue that needs to be taken care of under warranty I will wait. What do you guys think? Thanks again

[lowstroke]

I think you are alright. You have to remember that your engine coolant also cools the oil through the use of an oil cooler mounted in the valley of your block. The oil gets really hot due to the high pressure oil pump, so there is a lot of heat transfer. If the heads were lifting, you would see white smoke, and you would have puking.

[03f250stroke]

yeah you will def know when the gaskets go. tons of white smoke, loss of coolant.

egr is a little devil too when it comes to 6.0s

if you want to put a tuner on there then push the truck till it goes, find a dealer that will work with you and put a pair of arp studs in there.

[Diesel Freak]

YUP, WAIT ON THAT TUNER TILL YA GET IT STRAIGHT WITH FOMOCO!!
Sounds like head gaskets to me. I don't think you will always see smoking. Depends where the gasket is blown imo. Blown in the coolant ...... you get puking!! Blown in oil galley you get milkey oil and so on. JMO
Hope things work to your favor!!

[Blazingstroke06]

Oil looks good as does the coolant. I am a mustang guy and have blown many headgaskets that didnt pull coolant right away. I am just keeping my eye on it as the temps just seem a lil outta wack to me

[Abrannan19]

whats the oil temp, can you monitor that with your Edge? thats the key factor.

oil temp and water temp should not be more then a 10*-12* difference between the two.

[Cj Ford]

when the heads lifted on our BONE STOCK 2003 F550 6.0L it didnt smoke as much as I was expecting

[Blazingstroke06]

oil temps raise also, It also takes a while of drivin hard for it to reach that high and that was when the weather was warm. I will "test" it out again to see now that we are in the 40's and 50's

[67ModStang]

I had no smoke, oil contamination, or overheating when mine went...only some puking and the bottlecap whistle anytime I did more than an easy acceleration.