if your 318 oils thru the heads/shafts, you should not have any oiling problems going to solid lifters.

take a look and see if cam bearing #2 and #4 have holes in them to oil the heads...

you will probably need to change out the pushrods ....will need pushrods for adjustable rockers with solid cam....

Tony

70 AARCuda Vitamin C
71 Dart Swinger 360 10.318 @ 128.22(10-04-14 Bakersfield)
71 Demon 360 10.666 @122.41 (01-29-17 @ Las Vegas)
71 Duster 408 (10.29 @ 127.86 3/16/19 Las Vegas)