Old Truck Revival (A Few Questions)

I wasn't sure where to put this thread but, had some questions about the continued revival an old truck. It's a 1979 D150 and the last time I drove it or started it was about six years ago with health and life things that have occurred plus fixing and collecting parts when I'm able to do so. I've seen different information out there and I'm trying to clarify if I should remove the spark plugs and spray Kroil or Marvel Mystery oil down in the cylinders before, I at least use the starter to turn the engine over? The other part I should ask before I even do that, do I get and use a priming tool before I even go the starter method as well?

The other parts I'll add here is the fuel system is not hooked up currently as did some work to the carburetor last year and no fuel has been ran through it yet. The oil in it now was changed in 2021 (Brad Penn never ran yet) but, uses 20w50 because of the type of build that it is. My goal right now is not to run it per say but, use the starter to start turning it over every so often. I want to make sure I'm doing this right since, the engine is a still a fairly fresh rebuild and do want to hurt it. Any information or help would be greatly appreciated. Thank you in advance.

More engine info would be better but if its a pretty tame engine & 6 years since it last ran. If it has some miles on it, cam broke in , rings seated, ect. I would get fresh fuel and oil , pull the coil wire and spin it a little.
Then put the wire back on and fire it up.
You may have a bit of lifter tic ( solids or hydraulic ? ) until they pump up.
If it was a new build 6 years ago and a big HP engine plus everything is tight I would say yes add a little oil in each cyl and prime the oil pump with a drill before firing it.
When you mention ( fairly fresh ) are you talking miles or minutes ?

Hello. On the engine it's a 5.9 Magnum based stroker. So, it's a got an aftermarket hydraulic roller cam and aftermarket valvetrain stuff. It has aluminum heads as well. I wanted to say it has about 2k miles (rebuilt again in 2012) I bought this truck back in the current configuration.

It has an high volume oil pump. As I stated before, I did put fresh oil in it about four years ago but, never ran as I had other things happen and it got put on the back burner until about last year when I started doing some stuff again.

So, now I'm working on it again and figure at least getting the engine turned over would be a good thing to do at this point. Thank you again.

streetmachine said:

Hello. On the engine it's a 5.9 Magnum based stroker. So, it's a got an aftermarket hydraulic roller cam and aftermarket valvetrain stuff. It has aluminum heads as well. I wanted to say it has about 2k miles (rebuilt again in 2012) I bought this truck back in the current configuration.

It has an high volume oil pump. As I stated before, I did put fresh oil in it about four years ago but, never ran as I had other things happen and it got put on the back burner until about last year when I started doing some stuff again.

So, now I'm working on it again and figure at least getting the engine turned over would be a good thing to do at this point. Thank you again.

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After hearing a little more detail on the engine i would say yes pre lube it.
Roller set up , aluminum head stroker engine and not 100% sure on run time.
Stay on the safe side , pull the distributor and pump drive shaft. Mark it or score it so you get it back in the same spot.
A 5.9 mag I am not for sure on pump rotation , I think it's counter clockwise but double check that.
Top dead center to pull the drive, get a rod and drill. Some towels , rotate the engine to get oil to both sides.
It's a little work but better to be safe.
A stock 5.9 in a pickup like my old 2000 I would fire up after a long nap. Yours sounds like a nice build.