Engine Install Question

Changing the springs on the engine is a pain, especially if the engine is in the car. It really depends on the spring pressure. You should probably call the tech line at Crower and ask them. If you have dual springs then usually the engine shop will break in with just the outers. If you have a single spring then you are kind of stuck. I use beehive springs on a lot of flat tappet builds and we break them in with the beehives. Really serious engine builders use low ratio rocker arms for break in and then switch over to the real rocker arms for the dyno testing.