Haven't really followed them at all but maybe? One engine is based off of an automotive build platform and the other is built say inhouse as more custom type fit for certain boat manufacturers Ilmor tends to be partners with like Mastercraft, etc..?ILMOR makes a 6.2 430HP and 5.3 365HP
So why is the 5.3 cost more then the 6.2?
Seeing this on Formula website
Yes, still looking@alldodge . . . are you shopping for boats