Unless someone switched engines, in the past. That 350 series, 2 ton, '52 model GMC truck, came with a 248 in it, from the factory. That's what the "24", in the Data plate number stands for. The 302's came in the, 450 series 3 ton, & 470 series 3 1/2 ton GMC's. If you do indeed see "302", stamped, on the flat ledge, at the base of the distributor. The orig. motor, has been swapped.
