Don't think that will help. You can install a whole-house surge suppressor in the main panel, though. The higher the number of joules it can absorb and the faster it switches the better. Typically, you need two open slots as many specify installation on a dedicated breaker (you need one for each leg). A good stand-alone surge suppressor would help, but most rely on the ground connection to function at their max, and the only way to get that is to rewire. You CAN install a gfci breaker or receptable and install grounded outlets after it, but the ground is still not there and available to dump current from a near-by strike - it wil provide safety from a product defect, though.
Note, if the house is prone to lightning strikes, you may want to install lightning rods (some houses, due to their elevation or surrounding structures or ground material are very prone to attract lightning strikes).