Installing a solid cam

[My427stang]

Earlier I mentioned there was a benefit with having oil at the lifters because you could use EDM lifters.  However, I have never HAD to use them, including both of my own toys.  So as Jay mentioned, if you want a little margin of safety, sure, but they sure aren't a requirement

[machone]

Ok, thanks guys.

[chris401]

And have not met anyone that had this problem in a FE. My experience is very isolated but possible. I picked up a 64 solid lifter 390, overhauled it  and ran it with a stock oil pump fine. The engine it replaced was a hydrolic 67 390 that ran fine with a stock oil pump. When the early 390 windowed I had the cam reground with the same type new mushroom lifters and transfered everything to the 67 block. Now I had 2 psi at idle, same with a new gauge. W60 and an HV pump got me up to 45 psi idling in summer DFW traffic. Not sure if the lifters are a little small, cam circle too low, lifter gap too low or? When I detuned it with a hydrolic cam I left the HV pump in ran 10W30 and now had 63 psi idling in traffic. A forum member ran that C7 block for a while with no oil pressure issues either. Still have the solid cam and lifters. Some day I'll mic the old lifters against the newer comp mushrooms I have shelved.