Will a 1988 2.8 liter Chevy crank pulley interchange with 5.7 liter?

No, a 1988 2.8L Chevy crank pulley will almost certainly not interchange with a 5.7L (350 cubic inch) Chevy crank pulley. The crankshaft diameters are different, meaning the pulley's bore (the hole in the center) will not fit. Even if the diameters were somehow close enough, the harmonic balancer design and overall dimensions would be different. You'd need a pulley specifically designed for the 5.7L engine.