Fuel Injection Pump question

Hi Jeff, welcome.

You have a picture of the fuel injection pump/governor assembly. The dipstick is actually in the governor section but the sumps are common (FYI). SAE 30 non-detergent motor oil will work well in it, and be sure to check it prior to every daily start. There are no seals in the individual injector pumps as they are lap-fit and can wear rapidly with dirty fuel because fuel is the only lubrication that they get.

Do the 454's have three cylinder engines?

My 454 has a 4 cylinder, however, there are ones with 3 cylinder as well. Here's a diagram of our fuel supply system.

Curious how they get 45 HP ot of the three cylinder engine without turbo unless it's a much different engine?

Notice the pressure regulating valve (banjo bolt) on the front of the fuel injection pump, whose name has been a bone of contention, and has also been installed in the wrong location from the factory.

The 3-cylinder engine on the 454 is an SL3105ABT.

I'd assumed the 3-cyl just has a larger displacement than the 4-cyl and that's how they get equivalent HP. 

Yep, that works.