hello everyone. i have a civic with a b18a and i had a problem with the head, and i tried fixing it, but no good. it kept ticking but it turn out to be the block ALSO had a ticking noise. yes it was a bearing. i fixed it, and i had a GSR head with TYPE R internals that i was perfectly using and working. and now with this LS block, when i took it for a spin with the spun bearing, VTEc worked three time, after the thisrd time, no more. i fixed the block, and still no vtec, i changed the oil. still no vtec. the OIL LINE was checked. no VTEC, i check the oil pressure, (perfect) No vtec, i changed the selenoid 3 times, 3 diffrent ones, working in other cars too, no vtec, the ECu is sending signal perfect, no vtec. i put the selenoid direct to it clicks but when u drive NO VTEC!! i check the rocker arms, to see if the center pin moves, and it moves perfect. NO VTEC a friend of mine told me to put Marvel mystory oil, and see what happens. and i did. couple of hours later, IT WORKED!! this was at 3:00pm at 6:30pm it stoped. no more vtec. i've tried everything i can think of, i even called people that know their HONDA STUFF and they dont know why. maybe someone here does i dont know, but if you do please help me out, im about to throw that S*** away. ANY ideas would help please anyone. i've put Ls/Vtec together before and i've never had that problem before and i've used -4 lines and no problems. Sorry so long of a story but i had to explain. brake ur heads people cuz i've broken mines. its crazy.