I got #1--170 #2--170 #3--200 #4--200psi, my manual says adjacent low compresion is usually a headgasket. I just built this and it is blowing a little white smoke at throttle and less at idle. What do you guys think?
Thanks

 

Did you torque the head gasket down to the correct specs?? The compression seems okay and I wouldn't say it's the headgasket. how many miles do you have on the new headgasket??

 

Yeah I torqued it down according to the helms manual, in a criss cross pattern, in 3 steps, ending at 49+2lbs because I reused the head bolts. it had white smoke in the exhaust stream right from the start. the gasket is brand new, I haven't driven the car yet. the service manual also says that a difference of more than 28psi between cylinders is bad, I don't know what kind of bad, just bad

 

bump

 

Did you blew the headgasket before?? If so, there will be moisture from the first blown headgasket in the exhaust system. I wouldn't worry about it too much. Just drive it and let the moisture burn off. Sometimes it will take awhile for the moisture from the first blown headgasket to burn off completely.

 

no it's a vtec head swap, the car ran fine before. the headers have been in storage for a while, and are used, that could be it. but the compression number differences still bother me

 

I wouldn't really worry about it. You'll get a few motor with uneven compression #. Once the ring set, just do another compression test to double check.