Top Street Performance Pro Series Distributor GM 90° V6 4.3L 262 Ready to Run

Pro Series Ready-to-Run Distributor for the GM 90° 4.3L V6 (262 CID)

Whether you're converting a fuel-injected 4.3L V6 to carburetor, rebuilding a carbureted S-10 or Blazer, or replacing a failing distributor on a performance-built GMC truck, this TSP Pro Series Ready-to-Run distributor is engineered to deliver reliable ignition performance without the complexity of an external ignition control box.

The Pro Series design uses a circuit board module with magnetic pick-up trigger — a step up from standard contact points or basic reluctor setups — providing precise, consistent spark timing across the RPM range. Mechanical and vacuum advance give you direct, tunable control over ignition timing, making this distributor well-suited for carbureted builds, carburetor conversion projects, and performance street applications on the GM 90° V6 engine family.

The clockwise-rotation distributor is built around a machined aluminum housing with a steel gear and produces 35,000+ volts through an external coil. With a ready-to-run configuration, wiring is simplified — connect power and ground, set your timing, and the distributor is operational without additional ignition modules. The steel gear is most compatible with cast iron hydraulic or solid flat-tappet camshafts; consult your camshaft manufacturer if your build uses a roller or specialty cam.

This listing includes the distributor, three advance bushings, four advance springs, a color-matched spark plug wire retainer with screws, a vacuum advance block-off plate (black), a power extension cable, and a tachometer output extension cable — everything needed to support a clean installation.

Applications
Designed for the GM 90° V6 — 4.3L / 262 CID — in carbureted and carburetor-conversion applications. Confirmed common fitment includes Chevrolet S-10, Blazer, and Astro; GMC Sonoma, Jimmy, and Safari. Well-suited for performance rebuilds, carburetor conversion builds, and carbureted street applications on these engine and vehicle combinations. No model year range is published for this distributor — use engine family and configuration as the primary fitment reference.

Compatible With
GM 90° V6
• 4.3 L / 262 in³

NOTES
• Fits GM 90° V6 262ci engines in carbureted applications.
• Also compatible with carbureted-conversion 4.3L EFI applications with appropriate intake manifold swap.
• Not compatible with factory TBI or CPI EFI systems without carbureted conversion.
• Not compatible with GM 60° V6 engines (2.8L, 3.1L, 3.4L).
• Mechanical and vacuum advance design — recommended for carbureted street and performance applications.
• Distributor gear is most compatible with cast iron hydraulic or solid flat tappet camshafts; consult cam manufacturer for recommended gear material.
• 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.

Common Vehicle Applications
Chevrolet C/K Full-Size Trucks (262ci carbureted, 1985)
Chevrolet G-Series Van (262ci carbureted, 1985)
GMC C/K Full-Size Trucks (262ci carbureted, 1985)
GMC G-Series Van (262ci carbureted, 1985)
Any 1986–1995 GM 4.3L V6 vehicle converted to carburetion

SPECIFICATIONS
Trigger Type: Circuit Board Module with Magnetic Pick-Up
Distributor Rotation: Clockwise
Advance Type: Mechanical and Vacuum
Cap Color: Black
Terminal Gender: Male
Mechanical Tach Drive: No
Slip Collar: No
Coil Included: No
Coil Type: External
Required Coil Output: 35,000+ V
Gear Material: Steel
Housing Material: Machined Aluminum
Ignition Box Required: No
Marine Use: No
Cylinders: 6
3 Bushings And 4 Springs for Mechanical Advance: Included
Color-Matched Spark Plug Wire Retainer with Screws: Included
Vacuum Advance Block-Off Plate (Black): Included
Power Extension Cable: Included
Tachometer Output Extension Cable: Included

Key Features

• Ready-to-run distributor for GM 90° V6 (4.3L / 262 CID) engines — eliminates external ignition boxes by integrating a circuit board module with magnetic pick-up trigger directly into the assembly.
• Machined aluminum housing with a steel distributor gear designed for cast iron hydraulic or solid flat tappet camshafts, supporting carbureted street performance builds and TBI/CPI-to-carb conversions.
• Fully adjustable mechanical advance combined with vacuum advance provides direct timing control; includes 3 advance bushings and 4 springs for tuning the centrifugal curve.
• Complete installation kit includes a color-matched spark plug wire retainer, black vacuum advance block-off plate, power extension cable, and tachometer output extension cable — external coil rated at 35,000+ volts required but not included.
• Optimized for 12-volt alternator systems with clockwise rotation; confirmed fitment covers Chevrolet S-10, Blazer, Astro, GMC Sonoma, Jimmy, Safari, and full-size C/K trucks and G-Series vans equipped with the 4.3L V6.

Frequently Asked Questions

What engines is this distributor designed for?
This Pro Series distributor is engineered specifically for GM 90° V6 engines (262 CID / 4.3L). It supports direct carbureted applications and carburetor conversions from TBI or CPI fuel injection setups, provided the appropriate intake manifold swap is completed.

Does this distributor require a separate ignition box?
No. The Ready-to-Run configuration features an integrated circuit board module with a magnetic pick-up trigger. It operates directly on a standard wiring harness without needing an external CDI unit or additional control modules.

What type of ignition coil does this unit require?
Installation requires an external high-output ignition coil rated for at least 35,000 volts. The coil is not included with the distributor and must be sourced separately to ensure proper spark generation across the RPM range.

Is the steel gear compatible with a roller camshaft?
The included hardened steel distributor gear is optimized for cast iron hydraulic or solid flat tappet camshafts. If your engine uses a roller cam, consult your camshaft manufacturer to confirm the recommended gear material before installing this unit.

Can I block off the vacuum advance on this distributor?
Yes. The package includes both a functional vacuum advance canister and a black vacuum advance block-off plate. You may use the vacuum advance for improved street drivability or install the block-off plate for full mechanical advance tuning.