Harmonic balancer comes off

Geebus guys come on, we are NOT discussing a Pontiac here. You should have .001-.0015 PRESS FIT and no more than .002.

If you had to heat up the damper to put it on it has too much press. Can't tell you how many dampeners I had to hone to get them correct. In fact, most good dampeners come undersized so you can fit them because the Chinese have trouble machining to a blue print. Fluidamper got burned by this very thing years ago. No one measured their ****, they too much press fit and the crank snout would fail and the damper got blamed.

FWIW many early SBC's had a damper that was passed on and th cranks were not drilled.