At Kirban Performance, we know there's nothing quite like the growl of an ’87 Buick Grand National at idle, or the satisfaction of lifting the hood to reveal a pristine, period-correct engine bay. As specialists in vintage car parts for Buick’s legendary G-body, we’ve helped thousands of enthusiasts take their ’87 GN builds from dusty garage finds to car show champions. Whether you’re working on a full restoration or refreshing an already clean GN, we carry exclusive parts and performance upgrades that keep your ride authentic and roadworthy.

Let’s walk through some of the essential vintage car parts for sale on our site that will bring your Grand National’s engine bay back to showroom condition.

1. Engine Detailing Essentials: Dress Up and Functionality Combined

Start with the fundamentals. Our Kirban Performance exclusive items like the polished billet vacuum block, stainless steel vacuum brake conversion kits, and reproduction engine compartment decals make your engine bay pop while staying true to the GN’s factory look.

Looking to go the extra mile? Our Show Car Engine Dress-Up Kits bundle polished and reproduction components, including AC lines, heater hoses, and caps, so your bay not only runs clean but looks the part. For owners chasing concours-level restoration, every detail counts, right down to the clamp style and labeling.

2. GN-Specific Electrical and Wiring Components

Vintage wiring often becomes brittle and unreliable over time, so upgrading the electrical system is a must for safety and performance. We offer vintage car parts such as new engine harnesses, alternators, and OEM-style battery cables that match factory specs. These parts don’t just restore original appearance, they keep your electronics running reliably.

Looking for a plug-and-play solution? Our Hot Wire Fuel Pump Kit is designed specifically for the ’87 Grand National, giving you a clean, reliable boost in performance without sacrificing authenticity.

3. Performance Meets Period-Correct: Turbo and Intercooler Components

The turbocharged 3.8L V6 was the heart of the GN, and the area where many restorers are most particular. We stock hard-to-find parts like stock-style intercooler hoses, replacement wastegate solenoids, and correct-fit turbo heat shields. These items maintain that unmistakable factory turbo look while ensuring the car runs like it did the day it left the dealership.

Don’t forget to inspect the up-pipe and downpipe, these high-heat areas are often corroded. Kirban Performance carries upgraded stainless steel options that keep your GN looking original with longer-lasting materials.

4. Hard-to-Find Accessories for a Truly Vintage Touch

Need the original-style hood liner insulation or engine compartment relay covers? We’ve got you covered. These small details are often overlooked but make a significant impact when you're going for that “wow” factor under the hood.

Our customers often ask how to get that “just off the showroom floor” vibe. The secret? It’s in the details, and we offer the most complete inventory of vintage car part options built specifically for the 1987 GN.

5. The Kirban Difference: Supporting Your Restoration Journey

Whether you’re searching for 87 GN for sale or already own one, Kirban Performance is your trusted source for all things Grand National. We’ve lived and breathed turbo Buicks for decades, and our curated inventory reflects that passion. From bulkhead grommets to turbo brackets, every part we carry is vetted for fit, function, and finish.

Our vintage car parts for sale are more than just components—they're keys to preserving a performance legacy.

Ready to Restore? Let’s Get Under the Hood!

The 1987 Grand National is a timeless muscle machine, and restoring one is a labor of love. At Kirban Performance, we’re proud to support the GN community with the highest quality vintage cars parts, technical support, and exclusive kits you won’t find anywhere else.

Whether you’re prepping for the next car show or just want your GN to turn heads every time you pop the hood, we have what you need. Browse our store today to find the parts that will make your restoration shine.

And if you’re still searching for the perfect base car, keep an eye out, 87 Grand National for sale listings move fast, but we’re always ready to help you start your build when the right one comes along.