TOPIC: 1970 chrysler parts needed.Please help

I need a good source of parts for my Chrysler 85 hp serial number 857HA makes it a 1970.I need a head gasket the gasket that goes between cyl head and water manifold cover. Thermostat,rubber gasket,and head temp sensor..Part numbers would be great too.Took it out on its maiden voyage and thermostat was stuck.Almost melted it down.Removed lower unit to find a new impeller.Then removed cyl head because thats what you have to do to get to the darn T stat.its under the water manifold boiled it while watching the meat thermometer didnt open till it hit almost 250 Deg.Hope someone can help Thanks Dan

Try here. www.marineengine.com/parts/parts.html