ok, I have disassembled the entire engine. I find no serial #'s. how can I tell if this is ABA or 3A. one thing, it does have oil squirters under the pistons. did the 3A have this feature? tia -- Email LIST problems to: scirocco-l-probs@scirocco.org. To unsubscibe send "unsubscribe scirocco-l" in the message to majordomo@scirocco.org