Dear fellows:
I've started to work on my 49 1/2 ton engine. It's working perfectly (I was really lucky when I bought the truck) but since I'm sort of restoring it to its hayday glory, I've come up with some issues. I'll be bothering you quite often so please, be gentle. I'll appreciate any help.
First I would like to know exactly what motor is it. Motor number says A228####, but block casting 2324002. I have the shop manuals for 47-54 and 55-59. On the first, it says that the A means oversize measurements on some items (bore, crankshaft, etc.) and the following the CID. So it should be a 228, but on a lot of places I have seen that the casting number belong to a '55 248. What confuses me more, is that the shop manual for 47-54 tells that those model years can carry the following motors: 228-248-270, and the 55-59 270-302-347. If this is true, the motor is a 54 or the made 248 on 55 also? Is there a difference in engine between 55 1st and 55 2nd?
The later will help me choose the proper carb. Mine has a Rochester adapted. I have researched and found GMC uses Zenith, but I want to know which might be the appropriate. I still have more questions, but don't want to overwhelm anybody.
Yours
Chinito
