see if anybody could help out I’ve got a heater to plumb in, in my 40 Coupe and was wondering where to take the pipes off. I’m running the original Flathead, so do you take a pipe off either side of the block behind the water pumps or off the heads Thanks
Found this from an earlier post: One hose line would connect to a fitting in the p*** side head....usually to one or other side of the radiator hose outlet in the head. These generally have a manual shut-off valve in the fitting. The other hose line would go to a fitting in the lower (p*** side) radiator hose. Sounds goofy but that's how they did it in the '39-42 flatheads. You can buy the fitting from MAC' ANTIQUE AUTO PARTS. You pull the lower hose, cut an opening about 3" from the engine side, place the inner and outer pieces of the fitting into the hole, and tighten it up. Now you will have a heater hose fitting IN the radiator hose! Another choice would be if your water pump has the opening and fitting for a heater hose barb. This is more common on the later flatheads. www.vanpeltsales.com
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