Originally Posted By: SteveSRT8
Haw! Everybody knows they're not "real" Hemis. But they are widely advertised and sold as such. Better get used to it...
I'm currently not aware of any months that have more than 31 days.
so the engines that can be "calenderised" per the OP have gaps.
101 to 131 - dang, I had a 138
201 to 228/229 - Got there with my 202 (186 missed out, as did my 253)
301 to 331 - 308 got there
401 to 430
501 to 531
Then nearly no-one has a day for the rest of the year, bar Jay Leno