okay we just fired up my friends LS that he had rebuilt replaced pistons and rods. bored out a little.
Well anyways, we fired up the car, it turned on perfectly!

suddenly 20 sec later white smoke flowed out the exhuast! hella white smoke, like a fog machine X3 !!! We left the car runnning for a lil longer but it never went away. It smelt like exhaust and fireworks. I checked the dip stock and it had some foamy white ---- on it.

What can this be?
we have all brand new seals and head gasket etc. We are gonna drain the oil tomorrow and try unsing new oil. I really dont know how my friend built the engine i just told him the things he needed and things needed to do.

What should we check what can it be?

 

anyone

 

any sign of coolet at all??
sure all head bolt`s on correctly??

 

Yo yo yo

compression/leak down test her? Good luck, I remember driving your Si lol.

 

all bolt torqed dwon to correct specs, we have coolant in the radiator low.
Holly ill do the comp check tomorrow then.

And yeah remember you racin my si, but its not a stock SI no more.

 

no the head is perfectly fine, i think...
We took the head off a running engine with spun bearings.

 

what?

sounds like a major coolant leak. do a compression test

 

sounds like headgasket to me....

 

yup, maybe a cracked head too