Can someone explain the difference in these radiators?

[printner]

I've gathered two 2L radiators for my stroker project. I was looking at mounting the fan shroud today, and noticed the two radiators have different shroud mounting screws.

The one on the left has 2 sets of mounting screws. The one on the right just has a single set. Anyone know the reason?

TIA

radiators.JPG

[spl310]

Unless I am mistaken the one with dual mounting points is the later version. The core is slightly narrower as well. Nissan redesigned the radiators to clear the bigger steering box on the late 69 and 70 cars.

[jrusso07]

I believe the shroud and lower hose is different on later cars too (from the 67.5 2000).

[spl310]

Shroud is different, lower nipple angle is different on the 67.5.