Diesel Conversion 23cc

[Wags23]

Just fired up my diesel (v6 tdi 225 hp) in my yard. Its a i/o hooked up to a bravo 1x. I changed it from a 350 mercruiser alpha. Only ran it last year for 5 hrs, need to make sure I have enough height from the static waterline. If not I'm going to have to get a riser made. The engine came with the exhaust pipe and bravo coupler so the height was predetermined. Anyone know of anything that will work such as a flapper ?