I installed a motor into my pickup. But the new motor has oil cooler lines and

The old engine is the one from my pickup and doesn't have the oil cooler lines. And the blazer does. I don't know how or where to connect them. I also installed a new clutch kit and the clutch pedal is very hard to press down. I don't think that is normal, right. ? Or do I have to start it so the hydraulic fluid can start flowing. ?

Swap parts from one engine to the other! .. (The part the oil filter screws onto.)