Not to split hairs, but the first year for the Pinto was 1971 and the base engine was a 1600cc unit... if there was actually a 1300cc motor in there it didn't come from the factory that way.

http://wikicars.org/en/Ford_Pinto (yes, I wrote this one too )

I have seen a few beefed up Pintos, one of the last ones I saw was a 79-80 model that a guy dropped a Fox-body Mustang 302 in it (don't know the year), it did sound and run pretty good - that seems to be one of the more common Pinto engine swaps.