Chip, Thought???? At this time I am nearly afraid to think. Seriously, no joke!!! You, as a "novice" mechanic, should not be expected to work "outside the box" on an engine. While I must admit you are observant and alert, you are letting the machinist walk over you. When you get a block and head back from a machine shop you dang well better be able to eat off from it!!! Take that entire setup back to them and have your wife tell them she won't allow something that dirty in her house. The reason you have a machinist clean your engine is because he is supposed to be set up to " CLEAN" it. Yes you can do it yourself but you will need galley brushes and a pressure(hot) washer and cleaning solvent in a big way. He should never leave grinding compound on the head. When you got your block and head back it should have looked brand spanking new and should have been wrapped. He has plastic wrap there for that reason. Did you have them "hot tank" you block and head? Did they hone the cylinders for you? Was the cylinders mick-ed to see that they weren't out of round and within tolerances? There is a definite reason why #1 rod goes in #1 hole, etc.. They are machined to fit a certain cylinder in the engine. Else- Why have them numbered? Many will say- it doesn't have to be "that" perfect, but my work ethics are different. When you rebuild an engine it should be better then new.
Thought?? Take the block and head back and DEMAND them to do a quality job, or you want your money back and you will go elsewhere!!! Take those rods back and ask them which cylinder that #4-#5 rod goes in. Logic says it can only go into one. Don't buy it if they say- "it doesn't matter", because it does. Don't take my word for it- run a poll and see how many on here think it does or doesn't matter which rod goes into which cylinder. I will say- It will run wrong but you will pay for it being wrong.
Oly in Oregon
Rest in Peace1945 GMC COE Victory Truck
1953 Willys CJ3B
1955 Chevy 1st series 3/4-ton
1958 WIFE Last series
Never say "Whoa" in a mud hole