Buick Odd Fire V6 HEI Distributor Long Shaft - Black

• 65,000-volt internal coil eliminates external coil and points system

• Magnetic trigger holds timing accurately without points wear or drift

• Long shaft fits 225 Dauntless V6 in 1966–1971 Jeep applications only

• Mechanical & vacuum advance included, with adjustment tool in the box

Upgrade your Jeep's Buick-built 225 Dauntless V6 with this long-shaft HEI distributor, a self-contained ignition upgrade combining the coil, ignition module, cap, and rotor into a single unit with one 12-volt connection — no external coil, ignition box, condenser, or points required.

The 65,000-volt internal coil delivers substantially stronger spark output than a factory points-style distributor, supporting easier cold starts, cleaner idle quality, and more consistent ignition performance across the RPM range. A magnetic pickup trigger replaces mechanical points contact, holding timing accurately without routine maintenance — a particularly meaningful upgrade on older Jeep Dauntless V6 engines where points-style components have often been in service for decades.

This is a long-shaft distributor, designed specifically for the 1966–1971 CJ-5, CJ-6, and Jeepster Commando applications using the 225 Dauntless V6 — not compatible with 1975–1977 Buick 231 odd-fire passenger-car applications, which require TSP's short-shaft distributor instead. Shaft length must match your engine's distributor/oil-pump-drive configuration; the wrong shaft length may prevent proper seating or oil-pump-drive engagement. A slight intake manifold modification may be required for distributor clearance. Both mechanical and vacuum advance are included, with a vacuum advance adjustment tool in the box. Available in black finish only.

Applications
Fits Buick 90° V6 odd-fire, long shaft: 3.7L/225 in³ (Dauntless), 1966–1971 Jeep applications only. Common on Jeep CJ-5, CJ-6, and Jeepster Commando.

Installation
Long-shaft design — shaft length must match your engine's distributor/oil-pump-drive configuration; incorrect shaft length may prevent proper seating or oil-pump-drive engagement. A slight intake manifold modification may be required for distributor clearance. Do not use on 1975–1977 Buick 231 odd-fire passenger-car applications, which require TSP's short-shaft distributor.

What engines and vehicles does this distributor fit?
This distributor fits Buick 90° odd-fire V6 engines, including the 225 CID (3.7L) Dauntless V6 used in 1969–1971 Jeep CJ-5, CJ-6, Jeepster Commando, DJ-5, Dispatcher, and Universal Truck applications. It also fits the 231 CID (3.8L) odd-fire V6 used in 1975–1977 Buick, Oldsmobile, and Pontiac rear-wheel-drive passenger cars. A slight intake manifold modification may be required on Dauntless 225 Jeep applications.

What is the difference between the TSP short-shaft and long-shaft Buick odd-fire V6 HEI distributors?
The difference is distributor shaft length. The short-shaft version fits 1975–1977 Buick 231 odd-fire passenger car engines, while the long-shaft version fits 1966–1971 Dauntless 225 Jeep applications. Using the wrong shaft length will prevent proper engagement with the oil pump drive.

What is the Dauntless 225 V6, and does this distributor fit it?
The Dauntless 225 is the 3.7L Buick odd-fire V6 used in Jeep vehicles from 1966–1971. Yes, this distributor is compatible, although a slight intake manifold modification may be required for clearance.

What is the difference between an odd-fire and even-fire Buick V6, and how do I know which one I have?
Odd-fire Buick V6 engines use uneven 90°/150° firing intervals, while even-fire engines use even 120° firing intervals. These distributors are not interchangeable. Because both odd-fire and even-fire 231 engines were produced during the 1977 model year, verify your engine casting number or VIN before ordering.

Does this distributor include an ignition coil?
Yes. The HEI ignition coil is built into the distributor cap, eliminating the need for an external ignition coil.

Do I need an external ignition box or control module?
No. The ignition module is built into the distributor, so no external ignition box, CDI unit, points, or condenser is required.

What is the coil output voltage on this distributor?
This distributor delivers up to 65,000 volts of spark output for improved starting, idle quality, and throttle response compared to factory points ignition.

Does this distributor fit a 1977 Buick, Oldsmobile, or Pontiac with a V6?
It depends on the engine. This distributor fits only the odd-fire 231 V6. Since both odd-fire and even-fire engines were produced during 1977, verify your engine before purchasing.

Will this distributor fit the Buick 3800 V6?
No. This distributor is not compatible with any Buick 3800 V6 engine.

Does this distributor fit front-wheel-drive Buick or GM vehicles?
No. It is designed only for rear-wheel-drive, carbureted Buick odd-fire V6 applications.

What type of advance does this distributor use?
It features both mechanical (centrifugal) and vacuum advance. A vacuum advance adjustment tool is included to help fine-tune the ignition curve.

What type of distributor gear is included?
A steel distributor gear is included. It is compatible with cast iron camshafts and many aftermarket steel camshafts. Verify compatibility if using a bronze or specialty cam gear.

Is this distributor compatible with a 6-volt electrical system?
No. This distributor requires a 12-volt electrical system and is not compatible with 6-volt systems, generators, or ballast resistors.

Do I need to set ignition timing after installing this distributor?
Yes. Base ignition timing should be set with a timing light after installation. Final timing will depend on your engine combination and tuning requirements.