can't say what the engine # means, but the truck didn't come with a V8 because there's no leading V on the vin
H255L = [6 cyl equipped] 1/2 ton, 2nd series, 1955, from the Los Angeles plant - the 7,998th one made there as numbering started at 001001

Bill

Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics