750 - 550 conversion question

[EightySeven550]

Hey all,
I have a 750 engine and a 550 ski, anyone out there have a conversion plate for kinda cheap.

also, its a couch engine so what else would I need to make this work?

Thanks all

 

[Kaveman]

I cant remember who I got the plate from (17 years ago) but it is pretty basic. The plate was aluminum about 5/16" thick. it mounted to the engine and then you bolt the engine to the 550 bed plate. Any machinist with the proper measurements could make it for you.

You will need a different prop (I think a straight 20 is what we ended up running).

Other than getting everything plumbed and electrical box mounted it is a bolt in mod.

If you can get in touch with Chris Hagest, I believe he had one that he used at Havasu for the ramp jump in the past.

 

[Laserman]

I'm not sure but I thing you might need a different exhaust.