i need my memory refreshed,i just picked up a pretty nice 1971 ford 350 pickup with a 35 foot hydraulic ladder and utility bed on it, believe it or not the thing was in a garage sale and i wasnt even going to buy anything, i was just lookin, kind of like old tractors lol, anyway im pretty sure the truck has had an engine swap at sometime in its life, it has what looks like a 360 by its valve covers,which is what memory tells me should be there, but the air cleaner, which appears to fit the engine correctly has 361 on the decal, but the left front of the block has 352 in raised letters, where should i look on the older ford v-8's to comfirm the engine size in the truck?