I think so. The only visible difference between 340 and 360 struts is that the latter had a little drop-link bar and 360 springs may be harder. Cheers, bogbasic.
1988 340 1.4 GL, 218k, 5 door (Grey Bess). Gone to CBA. 1991 340 1.7 GL, 64k, 5 door, petrol blue (Deep Blue). 1988 360 2.0 GLE, 140k, 5 door, ocean blue metallic (Blue Bess). 1989 340 1.7 GL, 108k, 3 door (Red Ness). More info here!