i currently just rebuilt my engine from the heads to the plenum. it ran great at first wich was a couple days ago. then all of a sudden a really really loud tapping noise happened. the noise comes and it stays for a minute then goes away, and then itll come back and go away. the lifters were replaced. and to top it all off the rockers are not getting any oil whatsoever. does anyone have any idea hwo to help me? please if you know any reason at all for noises that sound even remotely like that lemme know

 

Is there any oil pressure getting to the gauge? Things don't sound good. Hopefully you didn't already mess up the bearings. Did you use plenty of assembly lube on your crank and bearings when you assembled it?