I've got a tad of a problem here. I've got an '89 Firebird 5.0(305), and it's blowing smoke straight out the exhaust like nobody's business. Thought it might be the intake gaskets, head gaskets, and possibly a warped head or two, or even valve seals. But, I bought new heads, cleaned everything up nice 'n neat, new gasket set, etc. PCV checks out a-ok. Before I went through this ordeal over the past 2 days, my car blew black smoke. This time around, AFTER the new gaskets, heads, PCV, etc, it's blowing white smoke. I'm pretty much ready to shoot myself in the head, so any thoughts I'd appreciate it.

 

did you check for cracks in the cylinders, block or intake?

 

You've got a water leak. White smoke means water.

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'82 Firebird, dead stock, 9 bolt disc rear, over 200,000 miles and still going strong, more to come...
http://www.spinfrenzy.com/stingerssx...easures.html#4

 

or tranny fluid, but thats not possible on our cars




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60 Ranchero - Project ( Money Hole )
85 Sport Coupe LG4 - Daily Driver

Just another Hot Rod kid, or thats what they all tell me.
Livin' the Stereotype

 

Its possible that your car just needs a tune up. U might have to get new spark plugs wires cap and rotor or in the worse case senerio u have an oil leak and your cars burning oil.

 

White = Coolant/Water
Black = Fuel (too rich)
Blue = Oil

If you were blowing black smoke before, and now it's white, you might have fixed one thing and broken something else. Assuming your head gaskets are on correctly then I agree that there is likely a crack or coolant breach somewhere. When you changed the heads did you notice any one cylinder looking different from the others? Like it had been washed?

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I heard somewhere that you can modify these cars?!?!