[93Beast]

If youre certain its blue, blue = oil

Black = Fuel
Blue = Oil
White = Antifreeze

 

[93Beast]

maybe intake gasket is not sealing?

Either that or if the truck sat for a while, you could have had the valve stem seals dry up and are letting oil pass ino the cylinders.

 

[93Beast]

We'll check and see if there are any leaks with some butane



The truck was driven up until the day we tore into it, then we parked it two weeks ago to do the 4bbl swap. Now today its puffing smoke.

Does it puff smoke only upon startup and then it goes away or is it a constant smoke from the one bank?

 

[93Beast]

Sounds like a problem with the cylinder head to me.....could still be the piston/rings...but my first guess would be some sort of valve problem.....