Onboard ignition module — no separate ignition box required External-coil design supports 35,000V+ coils for more spark energy Direct fit for 1949–1953 Ford Flathead V8: 239/255 CID Circuit board module with magnetic pickup holds accurate timing
Upgrade your Ford Flathead V8 — 239 or 255 CID, 1949–1953 — with this Pro Series Ready-to-Run distributor, featuring an onboard circuit board ignition module paired with a magnetic pickup trigger, so there's no separate ignition box to wire in, while the external-coil design keeps the flexibility to run a higher-output coil. This distributor supports Ford Deluxe, Super Deluxe, Custom, F-Series, Mercury Eight, and hot rod Flathead V8 applications.
This distributor is built for the 1949–1953 Flathead's front-mounted, Loadamatic-style distributor configuration and will not fit 1948-and-earlier Flathead engines, which used a direct camshaft-driven horizontal distributor design instead. The housing is machined aluminum with a steel drive gear best matched to cast iron hydraulic or solid flat-tappet camshafts, and rotation is clockwise. This distributor requires a 12-volt electrical system with an alternator and a coil rated at 35,000 volts or higher; it is not compatible with generator-based charging systems or vehicles still running an active ballast resistor in the ignition circuit — the resistor should be removed or bypassed as part of installation.
What Is a Ready-to-Run (RTR) Distributor?
An RTR distributor has the ignition control module built directly into the housing, so it fires off a single 12-volt source without needing a separate ignition box wired into the circuit. This unit pairs that onboard module with a circuit board ignition control and magnetic pickup trigger, replacing the original Loadamatic distributor's points and vacuum-only advance control. The coil stays external here, requiring a coil rated at 35,000 volts or higher.
Performance Benefits
The circuit board module and magnetic pickup trigger hold timing steady without the wear and drift of a points-based system — a meaningful upgrade over the flathead's original vacuum-only Loadamatic advance control. Mechanical and vacuum advance a
| Color | Red |
| Gtin | 0810643014339 |
| Mpn | JM7740R |
| Age_group | ADULT |
| Condition | NEW |
| Gender | UNISEX |
| Product_category | Gl_automotive |
| Google_product_category | Vehicles & Parts |
| Product_type | Automotive > Replacement Parts > Ignition Parts > Distributors & Parts > Distributors |