Now that the engine is installed and every wire and hose is properly connected, go back and double check that all coolant and vacuum hoses are connected. Check that you oil drain plug is installed and properly tightened. If not already done, install a new oil filter onto the engine. Fill the crankcase with the proper amount and grade of engine oil. Fill the cooling system with a 50/50 mixture of coolant/water.
WARNING
Damage to the engine can result if it is allowed to run with no
oil pressure. Check the engine oil level to make sure that it is
full. Check for any leaks and if found, repair the leaks before
continuing. If there is still no indication of oil pressure, you
may need to prime the system.