Optispark Distributor – 1994–1996 Buick/Cadillac/Caprice/Impala SS
Petris Optispark Distributor for 1994–1996 Caprice, Fleetwood, Impala SS & Roadmaster
This ventilated pin-drive Optispark distributor is a direct-fit replacement for factory-installed units on LT1-powered B- and D-body vehicles. Precision-built and thoroughly tested, it's part of our long-standing commitment to improving LT1 ignition system performance and reliability.
Each unit is a blueprinted assembly, built from the ground up in the USA using globally sourced components that meet or exceed OEM standards. Unlike rebranded or mass-produced alternatives, every distributor is hand-assembled from the component level using premium parts — not repackaged and resold. It’s built the right way — using carefully vetted materials and techniques perfected through years of LT1 platform expertise.
Every unit is fully tested on our test stand at 800 RPM prior to shipment to verify:
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Proper spark output
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Fuel injector pulse
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No ECM/PCM fault codes detected
Why Choose Our B-/D-Body Optispark Replacement
✅ Built to Prevent Common Failures
Each pin-drive unit is placed on a custom-built timing fixture for a final alignment check — a step most competitors skip, often leading to timing issues. Internal components are secured with Loctite, and each unit features a Viton-sealed bearing for enhanced durability and resistance to heat and chemical exposure — helping prevent several common causes of Optispark failure or poor performance.
✅ High-Precision Optical Sensor
Our optical module is engineered to meet or exceed original specifications — ensuring stable signal delivery and dependable timing.
✅ Professionally Assembled Vacuum Hose Kit
Includes correct check and resistor valves, assembled to the correct specs with durable, automotive-grade materials. Designed to ensure proper ventilation and protect against cap damage.
✅ Brand-New Electrical Harness Included
Each unit comes with a new harness — crafted in-house using OEM-grade terminals and TXL wire for optimal fit, performance, and reliability.
✅ OE-Style Ventilated Cap with Brass Terminals
Includes a cast-in ventilation port, high-voltage distribution straps, and brass terminals for long-lasting conductivity and improved spark control.
What’s Included:
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Ventilated Optispark distributor — fully assembled and ready to install
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Vacuum hose assembly with protective high-temp split loom
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Electrical harness with 4-pin connector
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Installation instructions
(We recommend having a factory service manual on hand for additional reference)
Planning a Full Front-End Refresh?
If you're replacing more than just the distributor, consider our complete kit for your 1994–1995 Caprice/Fleetwood/Impala SS/Roadmaster or 1996 Caprice/Fleetwood/Impala SS/Roadmaster. This curated package eliminates guesswork and includes everything typically needed for a successful front-end LT1 rebuild.
As a bonus, the kit also includes our custom water pump seal installer tool — a small but meaningful detail that helps ensure proper installation and prevent future leaks.
Fitment:
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1994 Chevrolet Caprice with LT1 Engine
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1995 Chevrolet Caprice with LT1 Engine
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1996 Chevrolet Caprice with LT1 Engine
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1994 Cadillac Fleetwood with LT1 Engine
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1995 Cadillac Fleetwood with LT1 Engine
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1996 Cadillac Fleetwood with LT1 Engine
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1994 Chevrolet Impala SS with LT1 Engine
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1995 Chevrolet Impala SS with LT1 Engine
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1996 Chevrolet Impala SS with LT1 Engine
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1994 Buick Roadmaster with LT1 Engine
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1995 Buick Roadmaster with LT1 Engine
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1996 Buick Roadmaster with LT1 Engine
Covered by our standard 1-year, unlimited mileage warranty
Installation overview video (updated version coming soon)