Machinist will not build engine unless roller cam is used!

With the hydraulic ft issues I am of the same opinion on tappet choice for a performance engine. If I had to go hydraulic ft it would come from Jones or Oregon Camshaft.

For the last build we used bushed comp sportsman roller lifters with good results. I was interested in trying out the comp evo hydraulic roller lifters in a street engine. I am not sure if I will try them after finding out that Comp no longer services their lifters.

Back to Isky and BAM for now.

It should not be a huge deal to upgrade a 327 to a hydraulic roller cam. Surely GMPP sells retrofit lifters etc.