6.0/4L80e swap running hot!

[r6z4o6]

I would never recommend a "stop leak" for a head gasket, much less anything else. Sounds like you need to invest in a compression tester my friend.

[ThunderBolt]

I would never recommend a "stop leak" for a head gasket, much less anything else. Sounds like you need to invest in a compression tester my friend.

Well it's not exactly your conventional "stop leak".. Unlike most agents out there Blue Devil is a thin liquid that forms a chemical reaction with water when heated and creates a bonding gel that seals up leaks caused by blown head gaskets or warped heads(not sure if that's what happened). I've heard it used to be more of a commercial product and my dad used it in his isuzu box truck with great results so far. Even though it says it permanently seals, I'm sure results are temporary especially in a boosted application.