1966-1967 Cadillac 429 Pro Series Ready to Run Distributor with Female Cap - Black

The TSP Pro Series Ready-to-Run Distributor for the 1966–1967 Cadillac 429 V8 — Female Cap version — is a precision ignition upgrade for carbureted 429 CID (7.0L) Cadillac applications from the 1966 and 1967 model years. This unit is identical in function, specs, and included components to the male terminal version (JM7748R) with one critical distinction: this distributor features female terminal sockets on the cap rather than male terminal pins.

Terminal gender matters for plug wire compatibility. Female cap terminals accept spark plug wires with male pin-style boots. Male cap terminals accept wires with female socket-style boots. Before ordering, confirm whether your replacement or upgraded plug wire set uses male-pin boots — if so, this female cap version is the correct choice. If your plug wires use female socket boots, the male terminal version (JM7748R) is the correct choice. Mixing terminal genders requires adapters and is not recommended.

This is a specialized distributor for a specific two-year production window. Buyers with 1964–1965 Cadillac 429 applications should confirm compatibility with TSP before ordering, as the distributor architecture may differ between early and late 429 production years. For 1968 and later Cadillac applications, the TSP Cadillac 472/500 Pro Series distributor is the correct unit.

The Pro Series design uses an external ignition coil — giving you flexibility to run a coil matched to your build level. A minimum coil output of 35,000 volts is required — coil is not included. Three advance bushings and four advance springs are included for mechanical advance curve tuning. A vacuum advance block-off plate and tachometer output extension cable are also included.

 

Female Cap vs. Male Cap — Which Version Do You Need?
This listing (JM7748FBK) and the companion listing (JM7748R) are the same distributor in every functional respect — same engine fitment (1966–1967 Cadillac 429 CID), same specs, same included components, same price. The only difference is the terminal gender on the distributor cap. Female terminals are recessed sockets on the cap that accept male-pin spark plug wire boots. Male terminals are protruding pins that insert into female-socket wire boots. Verify your plug wire terminal gender before ordering — using the wrong version requires adapters or a different wire set.

If you are using the factory-style 1966–1967 Cadillac 429 spark plug wires or a replacement set that uses male-pin boots, this female cap version is the correct choice. If your wire set uses female-socket boots, order JM7748R instead.

A Specialized Distributor for the Final Cadillac 429 Era
The Cadillac 429 CID V8 was produced from 1964 through 1967, powering the full Cadillac lineup in its final production years before giving way to the all-new 472 CID V8 in 1968. This Pro Series distributor is specifically engineered for the 1966–1967 production window. Buyers with 1964–1965 Cadillac 429 applications should verify compatibility with TSP before ordering, as the distributor architecture may differ between early and late 429 production years.

Performance Benefit
The circuit board module and magnetic pickup trigger deliver precise, repeatable spark timing without the wear and drift inherent in aging points-based ignition systems. Three advance bushings and four advance springs allow full adjustment of the mechanical advance curve for your specific engine combination. A vacuum advance block-off plate is included for performance applications where full mechanical advance control is preferred. A tachometer output extension cable is included to simplify aftermarket tach wiring.

COMPATIBLE WITH
CADILLAC V8
• 7.0 L / 429 in3

NOTES
• Fits all 1966–1967 Cadillac 429 V8 applications only.
• Not compatible with earlier Cadillac 390 V8 (pre-1966) or later 472 V8 (1968 and newer).
• Not compatible with Cadillac 331, 365, or 390 V8 engines.
• Designed for carbureted ignition systems only.
• This distributor is designed for a 12 volt electrical system with an alternator and a performance ignition coil of 35,000 V or more. 
• It is not compatible with a generator and cannot be used with a ballast resistor.
• Verify distributor gear compatibility with camshaft material before installation.

COMMON VEHICLE APPLICATIONS
Cadillac Calais (1966–1967)
Cadillac DeVille (1966–1967)
Cadillac Fleetwood / Sixty Special (1966–1967)
Cadillac Fleetwood Series 75 / Commercial Chassis (1966–1967)
Cadillac Eldorado (1967 only)

SPECIFICATIONS
Trigger Type: Circuit Board Module with Magnetic Pick-Up
Advance Type: Mechanical and Vacuum
Cap Color: Black
Terminal Gender: Female
Mechanical Tach Drive: No
Slip Collar: No
Coil Included: No
Coil Type: External
Required Coil Output: 35,000+ V
Gear Material: Steel
Housing Material: Machined Aluminum
Ignition Box Required: No
Marine Use: No
Cylinders: 8
3 Bushings And 4 Springs for Mechanical Advance: Included
Color-Matched Spark Plug Wire Retainer with Screws: Included
Vacuum Advance Block-Off Plate (Black): Included
Power Extension Cable: Included
Tachometer Output Extension Cable: Included