Packard 1940-1956 Dual stream Underseat Heater Core
Packard 1940-1956 Dual stream Underseat Heater Core

Packard 1940-1956 Dual stream Underseat Heater Core

HC Packard 40-56 underseat

Regular price $299.00

There are two underseat dual stream heater cores in this period.  This one has a single heater core, the other has two heater core

We have seen the Packard underseat Dual Stream heater core in the 1955 and 1956 most frequenlty but believe it may have been available as early as 1940.  This core design is a better heat exchanger than the cellular film core but we can make the heater core larger for more heating if required.

Our build queue varies.

Present Lead times.

Made in the USA


We make to order. Please allow adequate time for us to build.

Build time estimates [late May 2025]

Model Ts Brass/Black [Our foundry has resumed production and we have begun shipping Model Ts.  We will update the lead times asap]

Model As 9-11 weeks

Heater cores ~6 weeks

Model A and 32 Ford Street rods 8-9 weeks

Common street rods ~12-15 weeks

Tricky customs & complicated restorations ~20 weeks

We appreciate your patience as we continue to recruit and train new fabricators and manage the labor shortfall our country has been experiencing.