For most of this year my 3630 Spray Coupe has been using about a gallon of water a day. Well yesterday it blew up a radatior hose up big time... Now when I try to add water and start up the engine it blows all the water out of it. So Im sure I have either cracked the head or lost a head gaskett. No water in the oil but does have a "miss" at low RPM but cant keep water in it at all now. My question is does anyone have a extra head or complete motor that they have taken out? I would like to change it over to a cummings but that conversion is around 10K. Is there another engine that would be cheaper to change or just fix the Peugeot? Is there a block sealer that might save me and get me throu the year?