The biggest engine GM makes for vehicles(gasoline) is the 572
Chesrown Chevrolet Buick, Jack Maxton Chevrolet, Bobby Layman Chevrolet
You can for sure fit a 350 V8 with the conversion kit. You should be able to install a 383 stroker.
The 2013 Chevrolet Corvette has a V8 engine.
The 2006 Chevrolet Express has a V6 engine.
The 2011 Chevrolet Express has a V8 engine.
The 2012 Chevrolet Camaro has a V6 engine.
The 2012 Chevrolet Express has a V8 engine.
The 2002 Chevrolet Express has a V6 engine.
The 2001 Chevrolet Express has a V6 engine.
The 2007 Chevrolet Express has a V8 engine.
The 2013 Chevrolet Suburban has a V8 engine.