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Top Street Performance

Pontiac V8 Pro Series Pro Billet Distributor

Pontiac V8 Pro Series Pro Billet Distributor

SKU: SKU: JM7604R

Regular price $203.70
Sale price $203.70 Regular price $231.48
Shipping calculated at checkout.

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Top Street Performance (TSP) is committed to providing high-quality performance parts while complying with emissions regulations. This product is designed for use on vehicles that comply with federal emissions regulations. It is the customer’s responsibility to verify that this part is legal for use in their state or local jurisdiction. Check with your local emissions authority before purchasing.
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Product Details

Features

  • Magnetic pickup trigger for precise timing with an external ignition box
  • Pairs with a 35,000V+ coil and ignition box for high-output builds
  • Direct fit for Pontiac-built V8: 326/350/389/400/421/428/455
  • Machined aluminum housing with steel gear for durable timing control

Description

Upgrade your Pontiac V8 — 326, 350, 389, 400, 421, 428, or 455 CID — with this Pro Series Pro Billet distributor, built with a magnetic pickup trigger for use with a compatible external ignition box and coil. This setup is designed for higher-output ignition systems on Tempest/LeMans, GTO, Firebird/Trans Am, Grand Prix, Catalina, Bonneville, Star Chief/Executive, Safari, Grand Am, and Ventura applications.

This distributor is built for Pontiac-built engines only and is not compatible with Chevrolet, Buick, or Oldsmobile V8 engines that were optionally installed in some Pontiac vehicles. The Pontiac 301 uses a redesigned lightweight block with clockwise rotor rotation — the opposite of the rest of the Pontiac V8 family — so 301 applications need distributor compatibility verified before installation. 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 for 326–455 applications. Requires a compatible external ignition box and a coil rated at 35,000 volts or higher; also requires a 12-volt electrical system with an alternator and is not compatible with generator-based charging systems or vehicles still running an active ballast resistor in the ignition circuit. Timing is set through mechanical advance only.


What Is a Pro Billet Distributor?
A Pro Billet distributor uses a magnetic pickup trigger but, unlike HEI or Ready-to-Run designs, requires a separate external ignition box in addition to an external coil rather than housing that control on board. This setup is common in higher-output or race-oriented ignition systems where the buyer wants to pair the distributor with a specific external box and coil combination rather than an all-in-one unit.

Performance Benefits
The magnetic pickup trigger delivers consistent, wear-free timing signal without the point drift of older breaker-point systems. Because the ignition box and coil are external and separately selected, this setup allows the ignition system to be matched to higher-output requirements than a self-contained distributor typically supports. Mechanical advance handles the timing curve on the Pontiac V8 platform, and the included bushings/springs and color-matched spark plug wire retainer support a clean, complete install.

Specs

Distributor Type Pro Series Pro Billet
Rotation Direction Counterclockwise
Trigger Type Magnetic
Advance Type Mechanical
Cap Color Available in Black, Red
Terminal Gender Male
Mechanical Tach Drive No
Slip Collar Yes
Coil Included No
Coil Type External
Coil Output 35,000+ V
Gear Material Steel
Housing Material Machined Aluminum
Ignition Box Required Yes
Cylinders 8
Marine Use No
Included 3 Bushings and 4 Springs for Mechanical Advance
Color-Matched Spark Plug Wire Retainer with Screws

Engine Fitment

COMPATIBLE WITH
PONTIAC V8
• 4.9 L / 301 in³ (1977-1979)
• 5.3 L / 326 in³
• 5.7 L / 350 in³ (1968-1977)
• 6.4 L / 389 in³
• 6.6 L / 400 in³
• 6.9 L / 421 in³
• 7.0 L / 428 in³
• 7.5 L / 455 in³

NOTES
• Designed for traditional Pontiac V8 carbureted applications.
• The 301 uses a redesigned lightweight block with clockwise rotor rotation — verify distributor compatibility before installation on 301 applications.
• Not compatible with Chevrolet, Buick, or Oldsmobile V8 engines that were optionally installed in Pontiac vehicles — this distributor fits Pontiac-built engines only.
• Designed for carbureted applications only.
• Requires an external coil with a minimum output of 35,000V — no separate ignition box required.
• 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.
• 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
Pontiac Tempest / LeMans (326/350/400/455, 1964–1977)
Pontiac GTO (389/400/421/428/455, 1964–1974)
Pontiac Firebird / Trans Am (326/350/400/428/455, 1967–1979)
Pontiac Grand Prix (389/400/421/428/455, 1962–1979)
Pontiac Catalina (389/400/421/428/455, 1961–1979)
Pontiac Bonneville (389/400/421/428/455, 1961–1979)
Pontiac Star Chief / Executive (389/400/421/428/455, 1961–1970)
Pontiac Safari (400/428/455, 1961–1977)
Pontiac Grand Am (400/455, 1973–1975)
Pontiac Ventura (350, 1973–1977)
Pontiac Phoenix (301, 1977–1979)

Q&A

Do I need an external ignition box with this distributor?
Yes. This Pro Billet distributor requires a compatible external ignition box in addition to an external ignition coil. Unlike Ready-to-Run or HEI distributors, it will not operate without an ignition box.

Will this fit my Pontiac if it has a Chevy, Buick, or Oldsmobile engine installed?
No. This distributor is designed exclusively for Pontiac-built V8 engines. It is not compatible with Chevrolet, Buick, or Oldsmobile V8 engines that were optionally installed in some Pontiac vehicles.

Will this fit a Pontiac 301?
Use caution. The Pontiac 301 features a redesigned lightweight block and uses clockwise distributor rotation, unlike the counterclockwise rotation used by the rest of the traditional Pontiac V8 family. Verify distributor compatibility before installing this distributor on any 301 application.

What type of advance does this distributor use?
This distributor uses mechanical (centrifugal) advance only. Three advance bushings and four advance springs are included, allowing you to customize the advance curve for your engine combination.

Does this distributor include a coil or ignition box?
No. Neither the ignition coil nor the ignition box is included. This distributor requires an external ignition coil rated at 35,000 volts or higher and a compatible external ignition box, both sold separately.

Emissions Notice

This Top Street Performance (TSP) product is designed for racing and off-road competition use only. It is not legal for use on public roads or emissions-controlled vehicles and does not comply with federal, state, or local emissions regulations. The buyer assumes all responsibility for legal use and installation.

What is a Emissions-Controlled Vehicle?
"An emissions-controlled vehicle is any vehicle equipped with a factory-installed emissions control system designed to reduce air pollution. These systems include catalytic converters, oxygen sensors, EGR (Exhaust Gas Recirculation) valves, and diesel particulate filters (DPF). Most vehicles manufactured after 1975 are considered emissions-controlled and must comply with federal and state emissions laws when used on public roads."