What's the "Stock Block" class?

Just received the Challenge issue and noticed the 6th place exovette won the "Stock Block Class". What's that about?

They took last years trophies down but it was/is vehicles with the factory block.  I think it doesn't have to be the one the car left the factory with but at least the same type it left the factory with.

In reply to Stampie (FS) :

So, effectively a "non-engine swap" class. Calvin needs to find a Stude 289 and twin turbo that.

In reply to DeadSkunk (Warren) :

Or slam a TrailBlazer and make us all walk home with our heads down.

In reply to Stampie (FS) :

We almost bought one a few months ago. Lol. The cracked windshield it had just ruined it for us. Might do it still just for the giggles.

So as long as I have a Lima swapped for another Lima I'm ok?

Yes, that's the correct. It's a class for cars that aren't engine swapped.

Stock Block Class: Highest-placing car with the OEM (or duplicate replacement) engine block.