Oldsmobile V8 HEI Distributor

Upgrade your Oldsmobile second-generation V8 — 260, 307, 330, 350, 400, 403, 425, or 455 CID — with this HEI-style distributor, built around a magnetic trigger and a 65,000-volt coil housed directly in the unit, so there's no external coil or ignition box to wire in separately. This distributor supports Cutlass, 442, Delta 88, Ninety-Eight, Toronado, and Vista Cruiser applications.

This distributor is designed for the second-generation Oldsmobile V8 and will not fit engines built before 1964. The housing is machined aluminum with a steel drive gear best matched to cast iron hydraulic or solid flat-tappet camshafts, and rotation is counterclockwise. This distributor requires a 12-volt electrical system with an alternator; 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 an HEI Distributor?
HEI (High Energy Ignition) replaces the external coil and breaker points used in factory Oldsmobile ignition systems with a magnetic trigger and a high-output coil built directly into the distributor housing. Without points to wear or require periodic gap adjustment, timing holds more consistently, and this single unit replaces both the original distributor and ignition coil.

Performance Benefits
The 65,000-volt internal coil produces stronger spark output than a factory points-style distributor, supporting more consistent spark delivery across the RPM range on the Oldsmobile second-generation V8 family. The magnetic trigger holds timing accurately without the point wear and drift common to older ignition systems. Mechanical and vacuum advance are both included, with a vacuum advance adjustment tool in the box so the timing curve can be tuned for the specific engine and driving conditions.

COMPATIBLE WITH
OLDSMOBILE V8 (GENERATION 2)
• 4.3 L / 260 in³
• 5.0 L / 307 in³
• 5.4 L / 330 in³
• 5.7 L / 350 in³
• 6.6 L / 400 in³
• 6.6 L / 403 in³
• 7.0 L / 425 in³
• 7.5 L / 455 in³

NOTE
• Designed for second-generation Oldsmobile V8 applications — will not fit first-generation engines produced before 1964.
• The 330 was produced from 1964–1967; the 400 from 1965–1969 (and briefly in 1975 as a Pontiac-sourced engine); the 425 from 1965–1967; the 350 from 1968–1980; the 455 from 1968–1976; the 403 from 1977–1979; the 260 from 1975–1982; the 307 from 1980–1990.
• Designed for carbureted applications 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.
• Distributor gear is most compatible with cast iron hydraulic or solid flat tappet camshafts; consult camshaft manufacturer for recommended gear material before installation.

COMMON VEHICLE APPLICATIONS
Oldsmobile F-85 / Cutlass (330/350/400/455, 1964–1976)
Oldsmobile 442 (330/350/400/455, 1964–1976)
Oldsmobile Jetstar 88 (330/425, 1964–1966)
Oldsmobile Starfire (425, 1965–1966)
Oldsmobile Delta 88 (350/400/425/455, 1965–1976)
Oldsmobile Ninety-Eight (350/425/455, 1965–1976)
Oldsmobile Toronado (425/455, 1966–1978)
Oldsmobile Vista Cruiser (350/400/455, 1966–1977)
Oldsmobile Cutlass Supreme (350/400/455, 1970–1980)
Oldsmobile Delta 88 Royale (350/403/455, 1971–1979)
Oldsmobile Omega (260/350, 1975–1979)
Oldsmobile Hurst/Olds (455, 1968–1975)

SPECIFICATIONS
Distributor Type: HEI
Trigger Style: Magnetic
Advance Type: Mechanical and Vacuum
Rotation Direction: Counterclockwise
Cap Color: Available in Red, Blue, Black, Clear
Terminal Gender: Male
Mechanical Tach Drive: No
Slip Collar: No
Coil Included: Yes
Coil Type: Internal
Coil Output: 65,000 Volts
Gear Material: Steel
Housing Material: Machined Aluminum
Ignition Box Required: No
Marine Use: No
Cylinders: 8
Included: Vacuum Advance Adjustment Tool
Installation Instructions