1. If you are putting Explorer heads on your 5.0 replace the valve springs before you install the engine. That fluttering RPM above 2800 is going to really annoy you. Alex's Parts are competitive and mad in the USA.
2. Buy the NAPA valve spring compressor tool #7769094 for $9 you can't go wrong.
3. Buy the NAPA valve Spring compressor tool #7769189 for $22. It's a lot easier to put the new springs and keepers with this tool. Lube the threads before you start and wear some padded gloves. You can also use an adjustable wrench to turn the handle if needed.
4. Use the hose from your compression tester to hold the valves up with compressed air. Before you use it take the valve core out of the hose or it will do nothing and your valves will drop. Don't forget to move the hose every time you start a new cylinder.
5. You will get to tear apart a whole lot of stuff you didn't want to in order to get your valve covers off.
So there, now you know.
2. Buy the NAPA valve spring compressor tool #7769094 for $9 you can't go wrong.
3. Buy the NAPA valve Spring compressor tool #7769189 for $22. It's a lot easier to put the new springs and keepers with this tool. Lube the threads before you start and wear some padded gloves. You can also use an adjustable wrench to turn the handle if needed.
4. Use the hose from your compression tester to hold the valves up with compressed air. Before you use it take the valve core out of the hose or it will do nothing and your valves will drop. Don't forget to move the hose every time you start a new cylinder.
5. You will get to tear apart a whole lot of stuff you didn't want to in order to get your valve covers off.
So there, now you know.