pushrods with or without oiling hole?

thanks for replies...i'm starting to get an an idea of the answer. But i don't think the stock system has oil problems using the solid pushrods (Wild1, i know they are all tubular, solid p/rods have solid ends making them effectively solid to oil...i said this right at the first post.....) -the LA engines have a superior oil system compared to the other offerings from Detroit. Even with a few degrees of rotation allowing the holes in lifter and oil gallery to be lined up, this is sufficient to supply more than enough oil to the top end, with everything in tolerance as normal. If you use a priming rod into the oil pump on the end of a power drill through the distributor hole to prime your engine with the rocker covers off, you can clearly see the large quantities of oil getting pumped up through the shafts. I emailed Ryan Johnson at Shady Dell Speed Shop in Pennsylvania about this. All they do is A, LA and Magnum engines. So they have seen a few. He said he would not recommend using the AMC style lifter (oil hole in the top disc) with a stock pump. The original Chrysler hydraulic lifters had a solid top hat, so pushrods with or without oiling could be used. However most after market pushrods made by the big name brands are through-oiled probably because performance engines will be using a HV oil pump, as mandatory. In this case i wouldn't be concerned about an oil pressure loss up through the pushrods and the extra oil wouldn't hurt. i'm going with my gut feeling and using exactly what they used when it was designed by engineers. I also will email the Tech editor of Mopar Action, Rick Ehrenberg. I value his knowledge on (most) things engine-wise.

As for loss of lift.... (?) standard Hydraulic lifters have an inherent problem of too much pump-up at high rpm, making valve float more likely (valves stay open longer than they should) at higher rpm. Perhaps with a stock oilpump, that is not working as well as it should, and say, a slightly blocked oil pickup and using through-oiled pushrods and corresponding oiled lifters -yes - i could see a loss of lift. For sure