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[lneat1]

I have an FLHTCUSE3 and recently had the recall performed for the head replacement. Is there any way to tell the difference between the original heads and the replacements? Just wondering I have not found anything obvious.

[RedDevil]

I have an FLHTCUSE3 and recently had the recall performed for the head replacement. Is there any way to tell the difference between the original heads and the replacements? Just wondering I have not found anything obvious.

The new heads look the same externally, so there's no way to diferentiate between the two. The change was internal with the valve guides.

   

[tennisman]

Not just valve guides, but ACRs and the infamous head gasket (which there are more than one revision since the program started).  If one follows AIM, there is a series of articles by Heavy Duty Cycles in Ontario who are trying to figure out why the head gasket on the rear cylinders leak oil (note this is not a compression blowout failure).  Rather interesting analysis...it's more than a gasketing issue, gets into the whole heat issue on the rear cylinder, spiny-lock liner questions, etc. 
Since I have till 2010, I am not having the recall/product upgrade done quite yet unless I have a failure.  This one doesn't appear to be totally solved by the MOCO, IMO.
T-man

[DESERTBEAR54]

I had the new heads put on 17,000 miles ago and the motor is running like a Raped Ape. The rear cylinder failed at 7,000 miles. Had it re-sealed and then had new heads put on. Left my lowers off this winter to keep that rear cylinder cooler and no problems!!

[tennisman]

Left your lowers off this winter?!?  Whattaya gonna do this summer??? 

[DESERTBEAR54]

Leave them off this summer also. Reminds me of my RK and getting good airflow on that motor!!