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Skip to contentHC Ford 39-40 EA labs pattern reqd
Emanuel Aufiero of E.A. Laboratories invented the first electronically operated motor horn in 1908 and in the early forties made musical horns. This was all before he started making aftermarket heater cores for Ford dealers. We're happy to make these for you when provided a pattern.
YOU'RE BUYING A HEATER CORE NOT THE HEATER BOX PICTURED
If you have one of the heater core boxes pictured you will need to provide the pattern.
We make our own copper cores and fabricate our own tanks so, naturally, we get asked to build custom heater cores or "small radiators." Some modern Fords leak like a sieve so we make a copper alternative. We prefer to have the housing or original in hand to assure fit but if we have made them in the past and have a pattern you can order a drop in replacement.
Made in the USA.

We make to order. Please allow adequate time for us to build.
Build time estimates [Feb 4 2026]
Model Ts Brass 12 weeks
Model Ts Black 8 weeks
Model As 13 weeks
Heater cores ~11 weeks
1928-34 Ford Hot rods 8 weeks
Common street rods ~12-15 weeks
Tricky customs & complicated restorations ~25 weeks
We appreciate your patience as we continue to recruit and train new fabricators and manage the labor shortfall our country has been experiencing.
We make to order. Please allow adequate time for us to build.
Build time estimates [Feb 4 2026]
Model Ts Brass 12 weeks
Model Ts Black 8 weeks
Model As 13 weeks
Heater cores ~11 weeks
1928-34 Ford Hot rods 8 weeks
Common street rods ~12-15 weeks
Tricky customs & complicated restorations ~25 weeks
We appreciate your patience as we continue to recruit and train new fabricators and manage the labor shortfall our country has been experiencing.