MRL lifters dropped right in the 426/360 we built, no block grinding at all. He has standard and pressure fed rollers. The pressure fed rollers poured a lot of oil on the camshaft with our unbushed lifter bores. Recommend observing pre-lube with intake manifold off.
Yeah those pressure fed ones have a .026 edm hole in them.. it was larger than I was told.. they do dump a lot of oil
