Optispark Distributor – 1993–1994 Corvette

Petris Optispark Distributor – Ventilated Upgrade for 1993–1994 LT1 Corvette

Upgrade your 1993 or 1994 Corvette’s original Optispark with our ventilated high-performance distributor — a trusted solution refined through over 30 years of testing, innovation, and real-world driving experience.

Every unit is a blueprinted assembly, carefully constructed in the USA from the component level using premium, globally sourced materials that meet or exceed OEM specifications. Unlike mass-produced or relabeled alternatives, ours is hand-assembled with attention to detail and built to last — not just repackaged and resold.

This distributor is built the right way — using vetted materials and a process perfected by Chris Petris.

Each unit is fully tested at 800 RPM on our in-house test stand before shipping to confirm:

• Proper spark output

• Fuel injector pulse

• No ECM/PCM fault codes detected

What Sets Our Ventilated Optispark Apart

✅ High-Quality Optical Sensor
Our sensor has been rigorously tested in-house and in the field, providing stable signal output and reliable timing. Although the original Mitsubishi-equipped ACDelco sensors are no longer available, this proven alternative has been our trusted go-to for years — delivering outstanding durability and performance.

✅ Built-In Electrical Harness
No need to reuse aging or brittle wiring. We provide a brand-new harness built in-house using 20-gauge TXL wire and Aptiv OE-grade terminals for a factory-fresh connection.

✅ Ventilated Cap with Brass Terminals
Includes a cast-molded ventilation port and robust brass terminals with high-voltage distribution straps — improving heat management and overall distributor performance.

✅ Built to Prevent Common Failures
To maximize durability, critical internal components are secured with Loctite, and each unit features a Viton-sealed bearing. A precision-built vacuum harness with properly rated check and restrictor valves is included to reduce heat and moisture buildup. While no distributor can survive being drenched in coolant or oil, these upgrades offer added protection against the most common causes of premature failure.

➡️ For 1993–1994 models upgrading to a ventilated system, a small hole must be added to the air intake duct for the included elbow fitting. The second hose connects to the intake via the provided manifold fitting.

What You’ll Receive in the Box

• Ventilated Optispark distributor (fully assembled and tested)

• Vacuum hose assembly with high-temp split loom

• Electrical harness with four-position connector

• Brass manifold fittings

• Printed installation instructions
  (Factory service manual is recommended as a supplemental guide)

Looking to Refresh the Entire Front of Your LT1?

Our complete kit takes the guesswork out of parts selection. Designed for compatibility and reliability, this kit includes everything you need — and nothing you don’t. As a bonus, it comes with a custom tool to simplify proper water pump seal installation — a small but crucial detail.

Fits the Following Vehicles:

• 1993 Chevrolet Corvette with LT1 engine

• 1994 Chevrolet Corvette with LT1 engine

Backed by our 1-year, unlimited mileage warranty.

Installation overview video (updated version coming soon)