You mean 2.7 eta, right?
Either way, it will work, but will not give you any gains. In fact, it may be worse. Lower compression ratio (7.9:1 IIRC). You basically need super-eta pistons (or bottom end) to get the right piston shape to take advantage of the I heads larger combustion port and it's shape.
S52|ZF|TRM Coilovers 670/895|Staggered 18" 5's