Omc J, A motor

[JohnsonM50]

I have a 70s Evinrude 15hp that I would like to convert to an A or J, Ive heard that certain year models are acceptable [or not] anyone know?

[Ron Hill]

You'll need a black block motor..I have several....I can sell you one!!!

Stupid rule...but what else is new???

[Tomtall]

Don't bother. Too many differances on the 70's motor.Go to the APBA web site and go into the downloads section ( http://www.apba-racing.com/Downloads.html).you will find the inspection rules for "A" there. Your engine would need a differant ignition,Connecting rods,block,with port covers,carb.,pistons,mid section,exaust tuner -----ect. ect.,the list goes on. Ron probably has most of what you need. The tech. rules list all the correct part and stamping numbers you will need to make a legal "A" motor. Good Luck!

[JohnsonM50]

what Ive got is a 77 light blue block. Thanks Ron, Tom.