Chevy 194-292 Late L6 HEI Distributor

• Fits Chevy 1963+ inline-six 194, 230, 250, and 292 CID — carbureted applications

• 65,000-Volt internal HEI coil — single 12V wire, no external coil or box needed

• Not compatible with Stovebolt inline-six (216, 235, 261 CID) — 1962 and earlier engines

• Mechanical and vacuum advance — vacuum adjustment tool and instructions included

The TSP HEI Distributor for the Chevy late inline-six is a self-contained large-cap HEI ignition upgrade for the Chevrolet 194 CID (3.2L), 230 CID (3.8L), 250 CID (4.1L), and 292 CID (4.8L) inline-six engines used in 1963 and later carbureted applications. The integrated HEI design combines the ignition coil, ignition module, cap, and rotor into a single unit, connecting to a single 12-volt source with no external coil, ignition box, or condenser required.

The 1963-and-later GM inline-six family — sometimes called the Turbo-Thrift Six — powered the full range of Chevrolet and GMC cars and trucks from 1963 through the late 1980s. The 250 CID was the most widely used, appearing as the base engine in the Nova, Camaro, Chevelle, Impala, and nearly every Chevrolet and GMC light truck of the era. The 292 CID was the heavy-duty truck inline-six, used in C20, C30, K20, K30, and medium-duty truck applications. The 194 and 230 CID engines were used primarily in smaller cars including the Chevy II and early Nova from 1963 through 1969.

This distributor fits the 1963-and-later inline-six only — not the earlier Stovebolt family. The Stovebolt inline-six (216, 235, and 261 CID, used in 1962 and earlier applications) requires a completely different distributor. The two engine families are not interchangeable. If your vehicle is 1962 or earlier with a 216, 235, or 261 CID inline-six, see the TSP Chevy Early Inline-Six HEI Distributor (JM6516).

The 65,000-volt internal HEI coil delivers substantially stronger spark 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 requires no routine maintenance. Both mechanical and vacuum advance are included, with a vacuum advance adjustment tool shipped with the distributor.

The Late GM Inline-Six Family — What This Distributor Covers
In 1963, Chevrolet introduced a new generation of inline-six engines to replace the Stovebolt family. These new engines — the 194, 230, 250, and 292 CID — used a completely different architecture from the Stovebolt, with a taller block, different head design, and an entirely different distributor location and drive. These engines are often referred to as the "Turbo-Thrift Six" in GM documentation.

The 250 CID (4.1L) is the most widely produced and most searched displacement in this family, used as the base engine in the Nova, Camaro, Chevelle, and Impala from the mid-1960s through the early 1980s, and in Chevrolet and GMC light trucks through the mid-1980s. The 292 CID (4.8L) is the truck-specific heavy-duty version, appearing in C20, C30, K20, K30, and medium-duty applications through 1988. The 194 and 230 CID engines appeared in smaller GM cars from 1963 through 1969.

Not Compatible with the Stovebolt Inline-Six
The Stovebolt family (216, 235, and 261 CID, 1962 and earlier) is a completely different engine architecture with different distributor geometry. This HEI distributor does not fit any Stovebolt application. If your vehicle uses a 216, 235, or 261 CID engine, the correct unit is the TSP Early Inline-Six HEI Distributor (JM6516).

Performance Benefit
The 65,000-volt internal HEI coil delivers stronger, more consistent spark than a factory points-style distributor across the full RPM range — improving cold starts, idle quality, and throttle response on carbureted inline-six builds. The magnetic pickup trigger requires no routine maintenance and holds timing accurately without the wear and drift of points-based ignition. Both mechanical and vacuum advance are included, and the vacuum advance adjustment tool allows the curve to be tuned for your specific application.

What engines does this distributor fit?
This distributor fits the 1963-and-later Chevrolet inline-six family—194 CID (3.2L), 230 CID (3.8L), 250 CID (4.1L), and 292 CID (4.8L)—in carbureted applications. It is not compatible with the earlier Stovebolt inline-six engines (216, 235, or 261 CID, 1962 and earlier). For Stovebolt applications, see the TSP Early Inline-Six HEI Distributor (JM6516).

What is the difference between the early Stovebolt inline-six and the late GM inline-six covered by this distributor?
The Chevrolet Stovebolt inline-six (216, 235, and 261 CID) was produced from the 1930s through 1962. In 1963, GM introduced a completely new inline-six family—the 194, 230, 250, and 292 CID engines—with different block architecture, cylinder head design, distributor location, and distributor drive. These two engine families do not share distributor compatibility. This distributor fits the 1963-and-later inline-six family only. If your vehicle is a 1962 or earlier Chevrolet with a 216, 235, or 261 inline-six, the correct distributor is JM6516.

What vehicles used the 1963-and-later inline-six covered by this distributor?
The 194 and 230 CID engines were used in the Chevrolet Chevy II (1963–1967) and early Nova and Camaro models. The 250 CID—the most common application—was installed in the Nova, Camaro, Chevelle, Impala, and full-size Chevrolet and GMC cars and trucks from the mid-1960s through the mid-1980s. The 292 CID was the heavy-duty truck version used in C20, C30, K20, K30, and medium-duty truck applications through 1988.

Does this distributor fit the Chevy II?
Yes. The Chevrolet Chevy II (1963–1967) equipped with the 194 CID or 230 CID inline-six is a confirmed application for this distributor.

Does this distributor fit the Chevy Nova with a 250 inline-six?
Yes. The Chevrolet Nova equipped with the carbureted 250 CID (4.1L) inline-six is a confirmed fitment for this distributor.

Will this fit a Chevrolet Camaro with a six-cylinder engine?
Yes, for carbureted Camaro models equipped with the 230 CID or 250 CID inline-six. The Camaro offered the inline-six as its base engine from its 1967 introduction through the early 1980s. Confirm your Camaro is equipped with the carbureted inline-six engine and not a V8 before ordering.

Does this distributor fit the Chevrolet 292 CID truck inline-six?
Yes. The 292 CID (4.8L) Chevrolet heavy-duty truck inline-six is a confirmed application for this distributor. It was used in C20, C30, K20, K30, and medium-duty truck configurations from 1963 through 1988 in carbureted form.

Does this distributor include an ignition coil?
Yes. The ignition coil is built into the distributor cap as part of the HEI design. No external ignition coil is required. The only external connection needed is a single 12-volt switched power wire.

Do I need an external ignition box or control module?
No. The ignition control module is integrated internally within the distributor. No external ignition box, CDI unit, points, or condenser is required.

What is the coil output voltage?
This distributor produces 65,000 volts of coil output, significantly higher than a factory points-style distributor, delivering a stronger and more consistent spark for improved cold starts, idle stability, and throttle response.

Do I need to set ignition timing after installation?
Yes. Set base ignition timing with a timing light after installation. For most carbureted 250 CID applications, a starting point of 4–8 degrees BTDC at idle is a common reference, though optimal timing will vary depending on your compression ratio, camshaft profile, and carburetor calibration.

Is this compatible with a 6-volt system or generator?
No. This distributor requires a 12-volt electrical system with a charging alternator. It is not compatible with 6-volt systems, generators, or ballast resistors. The 1963-and-later inline-six applications covered by this distributor were factory-equipped with 12-volt electrical systems; however, verify your vehicle uses an alternator rather than a generator before installation.