Specs: 1994 LT1 engine out of a comaro alum heads. I put it into my 88 ss Monte Carlo.

So i just had this engine biult its got alum heads a hot cam a lot of money in this engine i started it for the first time a few months ago and warmed it up to seed the rings. I have not changed the oil yet but i have not really ran it sence breaking it in. sence i first started it it was smoking a lot but my cuz asured me that it was all the oil he used to grease the engine while biulding it. Ive noticed a good amount of white smoke comming out of the drivers side head threw the breather... im going to do the oil change this weekend but im worried everything is bran new no used parts and it was all ballenced out.... any one have any ideas let me know, Thanks Kaz

 

How long did you run it?

 

Drain and check the oil. Pull the valve covers to see if any coolant is present. Also, you cannot seat the rings without a load on the engine. That means you have to drive it. You'll end up with a smoker, if you don't.

 

It could be steam coming out of your head bolts or something. You might want to pull that valve cover and see if there's coolant or steam coming up from somewhere or if the smoke is coming from the lifter valley..

 

He could have broke a ring during assemby.

 

If its never been run under load, its not very likely the rings are seated. The blowby is rich with water vapor, and the vapor is going to condense and become visible as it comes out of the breather. Would of course be a non-stock setup, since there is no breather on the stock closed PCV system.

 

yea i have not driven it yet, im going to drive the vehicle very soon, think i should drive it for a few then change the oil or change it then drive it i got royal purple ( expensive stuff lol) i wanna break it in with that i ordered the new shifter cable ill have it by wednesday hopefully i can take it for a spin.

 

If you've had it running or idling, but not driven it, change the oil and filter. Probably full of water and other contaminants that are already forming acids and attacking the bearings. Do NOT use synthetic oil for break in. Use conventional oil. Synthetic is too slippery.