1986 Buick Grand National Aluminum Exhaust Header Gasket
SHIPPING - RETURNS - WARRANTY - CANCELLATION POLICY
*** Market Conditions after 2020 have changed the landscape of automotive parts. Although we try to stock 1000's of items in our multiple warehouse and use multiple distribution channels, having back-orders are unavoidable in today's market. If you are in need of a product quickly, we suggest email, message, or call us for availability so that we may explore your options.
Email: Sales@Speedzoneweb.com
Call: 407-846-8430
Text: 407-749-6314
Frequently Asked Questions
1986 Buick Grand National Aluminum Exhaust Header Gasket
Seal your header-to-manifold joint with aluminum construction designed for durability and heat resistance. This gasket handles the thermal cycling and pressure of high-flow exhaust systems. Aluminum core resists warping and maintains a consistent seal across multiple heat cycles.
Key Features
- Aluminum core material - Resists thermal warping under sustained exhaust heat
- Header-specific geometry - Designed to seal port-to-manifold interface consistently
- Ready to install - No additional prep or coating required before fitting
Specs
- Material: Aluminum
- Application: Exhaust header-to-manifold gasket
- Condition: New
Whats Included
- Exhaust header gasket (1 piece)
Frequently Asked Questions
Do I need to clean the mounting surfaces before installing this gasket?
Yes. Clean both the header and manifold mating surfaces with a wire brush to remove carbon buildup and old gasket residue. A clean, flat surface ensures a proper seal and prevents exhaust leaks.
Will this gasket work with a stock manifold or only with an aftermarket header?
This gasket is designed for header applications. If you're running stock manifold setup, verify your port pattern matches before ordering. Confirm bolt hole spacing and port diameter align with your specific configuration.
What's the return process if the gasket doesn't fit once I receive it?
Contact ModSupply customer service with photos of the gasket against your header or manifold ports. Most fitment issues can be resolved with verification before installation. Keep the gasket in original condition for fastest resolution.
Our History
For 26 years Speedzone Performance LLC has been providing aftermarket car parts to Central Floridians and 1000's of customers online. What makes us different than all the other places online? We have 3 actual brick and mortar locations where were serve customers daily and find new ways to provide support and assistance to the automotive community at large. From our in house SPDZ1 Brand, to our constantly growing in stock inventory, we strive to make our customer service and ease of purchase stand out from the rest! We are also one of the largest automotive part financing providers anywhere in the United States, and continue to provide more options for our customers every year. We love what we do, and it shows in every product we sell and every new customer who becomes a part of our Speedzone Family.