[mustangII460]

Blaster,

The 1.7's on the E cam provides the maximun amount of lift. In short, the springs will weakin rapidly. It creates alot more stress on everything, espcially pushrods. Depnding on what heads you run, the valve comes very close to the piston, especially critical in a stroker motor.

When the roller motors first came out we all bought 1.7's. When we finally had to tear apart the motors to modify them we stayed with 1.7's. After a short while we broke springs due to the cam lift causing stress. Good springs were installed and we bent pushrods. Finally we went back to a 1.6. On the dyno there was no change in power other than moving the power band around in the RPM's.

But,,,,,as always "Don't believe what I say, search google."