Easy enough to drill out and dress the 2 air supply holes at the front of the engine , as well as the location for the oil level sight glass . I'll be cutting some vinyl shapes to finish these off:
Also the first application from the HGW p/e set for this engine , looking at the set I see only a few parts to use , this ring which needs to be detailed itself , is one of them:
A note on this p/e ring. The bolt representation is very shallow , I'll be adding more p/e to this p/e for the hardware. The ring fits ok, shave the two sides of the crankcase assy where they join and the ring will slip right on. The bolt pattern is a little off , rotate the ring until you get the top bolts lined up , hopefully the out of line one or two wont be too visible on th bottom. I think it would have been just as easy to get the bolt pattern to match as not match.
Sometimes the rush to a/m can be problematic for model builders.