Hi List,
A while ago I enquired about the rear main seal kit for the 1275 A Series and 
received mixed feedback.  Since the block I am using for my new engine 
doesn't have a half moon piece I was resigned to having to use the kit anyway.
Well yesterday I delivered all my parts to the engine builder and he advised 
that the seal kit is very good for standard engines never using more than 
5500-6000 rpm but has a very short life on engines that are going to turn a lot 
more rpm and mine is.  However, he has a half moon piece and since the plan is 
to line bore the block anyway I won't be using the seal kit.
Thought that list might be interested in that information.
Regards
Daniel   
 
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