I just built me a motor for my 98 Chevy Vortec 350 got it all put together it just set the valves set the timing went to start it up it turned over and then turned over like there was no compression I went to the motor and checked it I had seven bent pushrods has anyone else had this problem I checked the timing it's okay the camshaft and the crank gears are lined up with the dots like they're supposed to I have no clue someone's telling me my pushrods might be too long I have a 480 lift cam

 

sounds like they were bottom out on lifter

 

Yup pre-load way WRONG...

 

My take. I am old school, I set push rods loose, then set them running

 

Did you put the lifters in an oil bath before installation?