Thanks guys. I think still that would be easier and more sensible than pulling the engine and doing a complete tear-down just for a seal.
I have not checked on what seals are available for the 270 yet.
I did find the tool and a seal for the 270 on the e-bay site, referred by Pre 68 Dave.
Does the Sneaky Pete work like one of the toys that you put on your finger and try to pull off?
I remember using one like that in the old days, but don't remember what success we had.

Last edited by Old GMC Gold; 10/19/2014 10:07 PM.

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