I am making an omp block off plate at work and just realized the omp i used as a model is off an 81 and the block in my car is from an 85......are they the same?

thanks

 

As long as the engines are both 12a they should be.

I just rebuilt mine, it's easier than blocking it off IMHO... took me very little time and effort to rebuild it and later on I'm going to run it off a 2-stroke resivoir so I'll have the same advantages as premix, without having the huge amount of extra oil.

Jon

 

Yep, 74-85 application.