Thanks all for your help , I have ordered bearings from caralina rc. They are on the way & you all saved me alot of $ As for the OS VG, so far so good, I love it, we have a real tight track here & it is doing great, good powerband & holds a tune very well. Time will tell only 1 gal. ran through it so far but very happy, I,m a novice racer, (club stuff) but for the price & performance I would recomend this engine, It seems to complement my 8ight, as I can stay in the throtle longer & let the buggy work, before I think I just had too much power, when my driving skills get better I might change but for now the OS helped me gain 2 seconds on my lap times <<.... THANKS AGAIN