1966-1995 Chevrolet GMC Big Block Turbo Manifold Stainless Steel T4
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*** 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
1966–1995 Chevrolet GMC Big Block Turbo Manifold Stainless Steel T4
Cast stainless steel T4 turbo manifold engineered for big block engines, designed to flow boost efficiently from port to compressor. Built from high-temperature stainless to resist heat soak and corrosion. Precision-cast construction handles sustained boost pressures without warping.
Key Features
- Stainless steel material - Resists thermal fatigue and oxidation under continuous heat cycles
- T4 compressor flange - Direct bolt-on to most aftermarket turbo housings without adapters
- Big block port layout - Optimized runner sizing and collector design for high-displacement engines
Specs
- Material: Stainless Steel
- Turbo Flange: T4
- Application: Big Block Engines
- Construction: Cast
Whats Included
- Turbo Manifold Assembly
Frequently Asked Questions
Will this manifold fit my turbo setup?
T4 flange is standard across most aftermarket turbo housings. Verify your turbo compressor uses a T4 inlet before ordering. If your turbo has a different flange (T3, T6, etc.), you'll need an adapter.
Do I need to gasket or weld this to my engine?
Mounting method depends on your big block configuration. Test-fit the ports first—some setups use gaskets, others require welding or studs through the block. Have a gasket material and fasteners ready before installation.
Can I use this manifold out of the box?
Stainless castings ship as-cast. Inspect for rough edges inside the ports—light finishing may improve flow. No painting required, though you can coat it if you prefer.
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.