390 PushRod length?
#16
02-12-2019, 11:45 PM
#17
02-14-2019, 04:01 PM
We used to deal with this all the time. I'm going to guess what the OP had could have GM pushrods. When building race engines you run into this quite a bit and as long as the rod type is the same (diameter and ball socket configuration) the engine sure doesn't care. I've got Buick rods in my Clevor.
#19
03-10-2019, 12:32 PM
Bad Lifters?
Check the lifters, compare them to the originals, FE lifters have a shorter pushrod cup height than other Ford lifters, they are all the same diameter but the taller height of non FE lifters won't allow the valves to fully close.
We also go a set of lifters once that would pump up and not bleed down causing low compression issues, that problem drove us nuts for a while until we figured out what was going on.
We also go a set of lifters once that would pump up and not bleed down causing low compression issues, that problem drove us nuts for a while until we figured out what was going on.
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