K2 Industries
1966-1995 Chevrolet GMC Big Block Turbo Manifold Stainless Steel T4
1966-1995 Chevrolet GMC Big Block Turbo Manifold Stainless Steel T4
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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.
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