I know that the issue of the differences between the early and later EA63 cams has been discussed in the forum before. But I need to renew it right now. For those of you who aren't familiar with it. The early 1400s had dual exhaust port heads, the later 1400s had single exhaust port heads, and this difference necessitated very different cams for the two versions of the EA63

 

Can anybody tell me any way to identify the different versions of the cam? Can you look into your old books or manuals? Maybe you have a couple of cams sitting in your garage?

 

My chiltons book tells me that the 1600 cam has a 51 stamped on it. The 1800 cam has a 79 stamped on it. No info though for the 1400s. Are there stampings on the 1400 cams? What should they be?

 

For more background info, just check my other thread about tearing down that modified EA71.

 

Any help is much much appreciated.

I think the valves are in different places. On the dual port it should be E,I,I,E and the single port is I,E,E,I

 

I'm sure if I'm wrong somebody who knows more will correct me.

Yep you are right about the valve arrangement. Early EA63 dual exhaust port heads required that the exhaust valves be on the outside. The later EA63 single port exhaust had the exhaust valves on the inside.

 

What I am asking is how can you tell the two different cams apart from the two different set ups.