Post by
AZhitman »
https://forums.nicoclub.com/azhitman-u113.html
Sat Mar 24, 2018 7:23 pm
Based on a quick look, it's an L-series, most likely an L16. That would explain the "72 Pickup" marking on the transmission, which would also jive with that manifold. Not a lot of power.
Allegedly, "M2" designates a factory replacement block. But, the good news is that it's an engine that has readily-available parts.
A good upgrade would be an L20b from a late 70's 620 pickup. L18 head, a slight overbore, z24 stroker crank, and a cam will get her near 200hp.
Then again, after all that, you could simply go with a modern engine, and have loads of power - that project is a blank slate... Looks like you could bolt in almost anything, easily.