Question about 1971 Johnson 6R-71G vs 1967 Johnson CD24s

[BillyB11]

Hey all, I am just wondering how similar or different these motors are. I currently own the 67 6hp, but found an a seller of a 71 6R-71G. Are most of the parts between these two compatible? They certainly look very similar to me.

Thanks,
Billy

 

[RCO]

Almost 100% identical. No major changes on the 6 until they switched to cd ignition in the late 70's.