Nope...
That looks like a manifold that has RAISED cast-in numbers. Not sure what the 5 recessed numbers are.

The engine number is stamped and thus will be recessed into the metal. Look straight down the firewall, it is almost inline with it. If your engine compartment is a little dirty it may be covered with dust or debris.

__________________
Gary


1973 450SL
1999 Silverado 4X4 Ext Cab
1999 Mercury Sable
1972 450SL Parts car

Previously owned keepers:
1967 MGCGT - 3L-6
1972 Mustang Fastback - 351C

Current Cylinder Index: 37