SBS Model has released a set of Wright R-1820 Cyclone engines for the HK Models 1:32 scale B-17F/G
This is partial text from the full article (usually with photos) at https://aeroscale.net/news/b-17f-g-engine-set-released
This is partial text from the full article (usually with photos) at https://aeroscale.net/news/b-17f-g-engine-set-released
Seems a more affordable way to replace the kit engines.