Buick BB 400-455 V8 HEI Distributor
The TSP HEI Distributor for the Buick big block V8 is a self-contained large-cap HEI ignition upgrade for the full Buick big block family — 400 CID (6.6L), 430 CID (7.0L), and 455 CID (7.5L) — in carbureted applications spanning the 1967 through 1976 Buick big block production era. 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 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 full RPM range. A magnetic pickup trigger replaces the mechanical points contact and requires no routine maintenance. Both mechanical and vacuum advance are included, with a vacuum advance adjustment tool shipped with the distributor for advance curve tuning.
The Buick 400 and 430 powered the Gran Sport, Electra, Wildcat, Skylark, and Sportwagon from 1967 through 1969 before giving way to the 455 in 1970 — which went on to power the GS 455, Riviera, LeSabre, Electra, Estate Wagon, Centurion, Century, and Regal through 1976. Whether you are restoring a GS 400, refreshing a first-gen Riviera 455, or rebuilding a Wildcat or Electra big block, this HEI distributor provides reliable ignition performance with minimal wiring complexity.
The Buick Big Block V8 — 400, 430, and 455
The Buick big block V8 is a distinct engine family produced from 1967 through 1976, separate from both the Buick Nailhead (1953–1966) and the Buick small block (215–350 CID). The 400 and 430 CID engines debuted in 1967 and powered Buick's performance and luxury vehicles through 1969. The 455 CID replaced both in 1970 and became the standard big block option across Buick's full lineup — appearing in the legendary GS 455, the Grand Sport Riviera, the full-size LeSabre, Electra, and Estate Wagon, and the personal luxury Centurion and Regal — before being discontinued after 1976 due to evolving emissions requirements. These engines are not related to the Buick Nailhead or small block despite sharing the Buick name, and they require their own distributor specific to the big block architecture.
Performance Benefit
Replacing a worn or points-style distributor on any Buick big block with an HEI unit delivers measurable improvements in starting reliability, idle quality, and throttle response. The 65,000-volt internal HEI coil fires spark plugs more consistently than a factory points setup across the full RPM range, and the magnetic pickup trigger holds timing accurately without the wear and drift that accumulates with points contact over time. Both mechanical and vacuum advance are included, and the vacuum advance adjustment tool allows the vacuum advance curve to be tuned for your specific build and driving conditions.
COMPATIBLE WITH
BUICK BIG BLOCK V8
• 6.6L / 400 in³
• 7.0L / 430 in³
• 7.5L / 455 in³
NOTES
• Fits Buick big block V8 engines (400, 430, and 455).
• Not compatible with Buick Nailhead V8 engines (264, 322, 364, 401, 425).
• Not compatible with Buick small block V8 engines (215, 300, 340, 350).
• Designed for carbureted HEI ignition systems only.
• This distributor is designed for a 12 volt electrical system with an alternator.
• 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
Buick GS 400 (1967–1969)
Buick GS 455 (1970–1975)
Buick Skylark (1967–1972)
Buick Wildcat (1967–1970)
Buick Electra / Electra 225 (1967–1974)
Buick LeSabre (1967–1974)
Buick Riviera (1967–1974)
Buick Centurion (1971–1973)
Buick Century / Regal (1973–1975)
Buick Estate Wagon (1970–1974)
SPECIFICATIONS
Trigger Type: Magnetic
Advance Type: Mechanical And Vacuum
Color: Available in Red, Black, Blue, Clear
Terminal Gender: Male
Mechanical Tach Drive: No
Slip Collar: No
Coil Included: Yes
Coil Type: Internal
Coil Output: 65000 V
Gear Material: Steel
Housing Material: Machined Aluminum
Ignition Box Required: No
Marine Use: No
Cylinders: 8
Vacuum Advance Adjustment Tool: Included
Installation Instructions: Included
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The TSP HEI Distributor for the Buick big block V8 is a self-contained large-cap HEI ignition upgrade for the full Buick big block family — 400 CID (6.6L), 430 CID (7.0L), and 455 CID (7.5L) — in carbureted applications spanning the 1967 through 1976 Buick big block production era. 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 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 full RPM range. A magnetic pickup trigger replaces the mechanical points contact and requires no routine maintenance. Both mechanical and vacuum advance are included, with a vacuum advance adjustment tool shipped with the distributor for advance curve tuning.
The Buick 400 and 430 powered the Gran Sport, Electra, Wildcat, Skylark, and Sportwagon from 1967 through 1969 before giving way to the 455 in 1970 — which went on to power the GS 455, Riviera, LeSabre, Electra, Estate Wagon, Centurion, Century, and Regal through 1976. Whether you are restoring a GS 400, refreshing a first-gen Riviera 455, or rebuilding a Wildcat or Electra big block, this HEI distributor provides reliable ignition performance with minimal wiring complexity.
The Buick Big Block V8 — 400, 430, and 455
The Buick big block V8 is a distinct engine family produced from 1967 through 1976, separate from both the Buick Nailhead (1953–1966) and the Buick small block (215–350 CID). The 400 and 430 CID engines debuted in 1967 and powered Buick's performance and luxury vehicles through 1969. The 455 CID replaced both in 1970 and became the standard big block option across Buick's full lineup — appearing in the legendary GS 455, the Grand Sport Riviera, the full-size LeSabre, Electra, and Estate Wagon, and the personal luxury Centurion and Regal — before being discontinued after 1976 due to evolving emissions requirements. These engines are not related to the Buick Nailhead or small block despite sharing the Buick name, and they require their own distributor specific to the big block architecture.
Performance Benefit
Replacing a worn or points-style distributor on any Buick big block with an HEI unit delivers measurable improvements in starting reliability, idle quality, and throttle response. The 65,000-volt internal HEI coil fires spark plugs more consistently than a factory points setup across the full RPM range, and the magnetic pickup trigger holds timing accurately without the wear and drift that accumulates with points contact over time. Both mechanical and vacuum advance are included, and the vacuum advance adjustment tool allows the vacuum advance curve to be tuned for your specific build and driving conditions.
COMPATIBLE WITH
BUICK BIG BLOCK V8
• 6.6L / 400 in³
• 7.0L / 430 in³
• 7.5L / 455 in³
NOTES
• Fits Buick big block V8 engines (400, 430, and 455).
• Not compatible with Buick Nailhead V8 engines (264, 322, 364, 401, 425).
• Not compatible with Buick small block V8 engines (215, 300, 340, 350).
• Designed for carbureted HEI ignition systems only.
• This distributor is designed for a 12 volt electrical system with an alternator.
• 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
Buick GS 400 (1967–1969)
Buick GS 455 (1970–1975)
Buick Skylark (1967–1972)
Buick Wildcat (1967–1970)
Buick Electra / Electra 225 (1967–1974)
Buick LeSabre (1967–1974)
Buick Riviera (1967–1974)
Buick Centurion (1971–1973)
Buick Century / Regal (1973–1975)
Buick Estate Wagon (1970–1974)
SPECIFICATIONS
Trigger Type: Magnetic
Advance Type: Mechanical And Vacuum
Color: Available in Red, Black, Blue, Clear
Terminal Gender: Male
Mechanical Tach Drive: No
Slip Collar: No
Coil Included: Yes
Coil Type: Internal
Coil Output: 65000 V
Gear Material: Steel
Housing Material: Machined Aluminum
Ignition Box Required: No
Marine Use: No
Cylinders: 8
Vacuum Advance Adjustment Tool: Included
Installation Instructions: Included
