Which can I use in a 400 block with stock lifter bores? For a street car. .420 lobe lift. Wanting to run a bushing type solid roller lifter instead of needle bearings. Tried the Morel bushing roller lifters in an unbushed World block and they would not build oil pressure, not sure if they would be another stock block option or not. Price on all 3 brands are in the 1200$ range so price is not an issue.
. Thanks, Galen