That's the one number I'm missing without pulling a head. Kicked myself forever over not checking that when I screwed the motor together!!! Or if I did I haven't found the number. I have about 55,000 miles on it since. Just put it on the strip a few times the last 4-5 years.
Local strip (hour and 1/2 away) opens May 7, so may get over there for some testing.