Moonshine Mike,
Here is a little more information about your engine serial number: A248I45293
The "A" indicates the following about your 248 cu inch engine (which, as posted above by cletis, was not the standard engine on smaller GMCs in 1951):
The "A" preface in the Engine Serial Number indicates that the original engine, from the factory had these "non-standard" characteristics:
- Cylinder bore was +.005 over/bigger than the standard bore.
- Main journals and rod journales were -.010 under the original diameter.
Do you have any ID information from a title or registration?
What size tires?
