I've got a ls-vtec that is bored out to 81.5mm and it is blowing white smoke like crazy...i was thinking headgasket or valve seals beacause it doesn't dissapate quickly really but it lingers for like 5-10 seconds....so since it doesn't smoke at inital start up, i am thinking it's not valve seals but compression is also great 245-255 accross the board(got 11.6:1 compression).....

so here's my question....

I herd that if i buy a OEM B SERIES HEADGASKET that it will work fine for anything from 81mm-81.75mm. Is this tru?????????? because i don't want to buy another $100 gasket if i can get a oem one for $30.


btw i will be checking valve seals when the head is off and it was resurfaced when i did the fresh build 1200 miles ago....just started smoking like 2 days ago though.........thanks

 

does anybody know about this or can anyone verify this??

 

yea it doesnt make that much of a difference until you go 82mm and over with sleeves..

I did lots of research on this....my motor is bored 84mm...with darton sleeves

 

aight cool...thanks for tha help