are all the pushrods the same size on a 2000 4.0 OHV? I just put a new head on a ranger and now it runs like crap. I kept track of all my pushrods till I started putting them back in the engine and I had a brain laps and pulled a pushrod out of the wrong slot and installed it. I think I found the right one and put it back in the right spot but there's a chance I didn't get the right one. at the time I measured the pushrods I had and they all seemed to be the same size so I didn't think it was a big deal but now I have it all back together and it's running like crap. I'm hoping it's just a vacuum line or a sensor I missed or something easy but if somebody can tell me they are the same I'll look for my problem somewhere else. If there not the same I'll tear it back down and start over. thanks

 

All the pushrods are the same length, but the wear pattern on the ends wear different thats why its important to put them back in the same spot.

 

good news for me. at least my chances are better that I didn't bend a vlave.