[Tigers] Original engine?

[James E. Pickard]

I've got a number matching Mk IA, but the original valve covers are hiding a
5-bolt 289.  Stashed in the corner of my storage room is what is purported by
the PO to be the original 260 engine.  I don't see any numbers on the block
that would confirm the likelihood of this.  Any way to determine if this is
likely to be the original engine (and potentially something of value), or am I
just storing a useless anchor?  Thanks.

Jim Pickard
B9473298 ('65 Tiger)
AN5L/12109 ('59 Sprite) - sold
2003 Mini Cooper
Lafayette, LA