Justa 6
I am running solid roller lifters by comp cams. The cam profile is a custom street grind. I only run .016 intake /.019 exhaust clearance hot. I plan on at least 10,000- 20,000 or more miles on the lifters and springs. This is about the 15th roller cammed engine that I have had. What I have found is that the solid roller cams have a crisper throttle response than the hydraulic roller cams do. the reason for this is that the solid lifters are lighter in weight (they are not full of
oil). With the lighter weight lifter you can run a more agressive lobe design, with less spring pressure. The lifters tend to last longer as do the valve springs. A solid roller lifter will last every bit as long as a hydraulic roller lifter. The only down side is the lifter adjustment every 5,000- 10,000 miles. Any competent mechanic can adjust a set of lifters in under 1 hour. Another trick that I have learned is to have your valve springs coated with dry lube by HPC (High Performance Coating). It helps to pull the heat out of the springs and they tend to last almost twice as long.