Show off your small block.

I cant figure out whether the 69 340 Swinger Im about to redo should have a Corp Blue or Hemi Orange engine...
Is there a date that they switched on ?
According to B.R. Hembree Decoding guide for 1966-1973. 1969 340's should be blue. 1968 was red, 1970 and 1971 was street hemi orange (red orange)