Sometimes when I start the car, I see blue smoke coming out from exhaust. I don't want to believe something is wrong with my piston rings.
I'm using Autolite 3923 cold plugs. (I don't know how much colder than stock).
Cold plugs could be the reason of blue smoke at first starts?

 

Leaky valve seals. They must be replaced.
You would have to remove the valve covers, rockers and valve springs to get to them.

 

OMG!!! I drove the new engine 450 miles, and now do I have to pull the heads ???????

 

It's a new engine?? If so did you build it or someone else? Looks like someone messed something up or matbe forgot a valvestem seal

 

You can replace the valve stem seals WITHOUT pulling the heads. I would be contacting the builder NOW.

 

yeah, contact the builder


was it built for boost/nitrous(loose rings)?
if anything, he should be able to help you out with the valve seals

 

Engine is built by Thunderracing. Yes its built for 200 shot nitrous, but I changed my mind, I will not use nitrous. The rings came with Diamond Flat Top Pistons. Anyway, is it definitely because of valve seals??? Couldn't be the cold plugs?? Pleaseeee

 

450 miles? That's all????? I wouldn't do anything until it's broke in sufficently (and properly). After a thousand miles time to do a leak down test to eliminate most other causes of the problem. If the problem still exists. Chill man wait for it to come to you.

 

Heat range of the plugs has nothing to do with an engine buring oil.

 

Yes 450 miles yet. I changed the oil third times. I think engine broke in, but yeah I should drive it a few thousand miles.
There is no blue smoke while engine is hot. I hope nothing wrong with piston rings right??
Oh and if I don't change my valve seals asap, what could be the worse thing??

 

Fouled plugs?

 

Here is a video of the coldstart, you will see blue smoke dissapears after a few seconds.
Oh and if there is abnormal sound on the engine would you let me know?

http://rapidshare.de/files/32078121/...Start.MPG.html

 

I also could upload the video to Youtube, but then it will not be a good quality.

 

Is that sound still there once it warms up?

 

Has the car been tuned yet?
What does the exhaust smell like?

Sounds horrible, seals should not be bad at 450 miles....