GM Small Block Chevy Twin Turbo Kit
Build serious twin-turbo power with a comprehensive street package designed for GM Small Block Chevy engines. This kit combines twin T3 turbochargers, stainless turbo manifolds, charge piping, cooling hardware, and key boost-control components in one package.
The original listing states that the system can support more than 750 horsepower with the proper supporting modifications. On a stock engine, the recommended starting point is a conservative 8–10 PSI. Final output depends on the engine build, fuel system, tuning, installation, and supporting components.
Engine Compatibility
- 283 cu. in. Small Block Chevy
- 305 cu. in. Small Block Chevy
- 327 cu. in. Small Block Chevy
- 350 cu. in. Small Block Chevy
- 400 cu. in. Small Block Chevy
Important: This is a custom performance installation, not a vehicle-specific bolt-on kit. Fabrication, piping adjustment, exhaust work, fuel-system upgrades, and professional tuning may be required. Confirm engine and chassis clearance before ordering.
Twin T3/T4 Turbochargers
- Two T3 turbochargers
- 0.50 A/R compressor housings
- 0.63 A/R turbine housings
- 0.57-trim compressor wheels
- 3-inch compressor inlets and 2-inch outlets
- 1/8-inch NPT oil inlets
- Mounting studs and oil-fitting gaskets included
Stainless Turbo Manifolds
- Two TIG-welded 321 stainless steel turbo manifolds
- T3 turbo flanges
- 1 5/8-inch primary tubing
- Thick flanges and welded turbo support brackets
- Turbo and exhaust-manifold gaskets plus mounting hardware
Intercooler and Charge Piping
- Front-mount aluminum intercooler
- 2.5-inch aluminum intercooler piping kit
- Two 90-degree bends, two 60-degree bends, two 45-degree bends, and two straight pipes
- Two 90-degree silicone couplers and six straight silicone couplers
- Sixteen stainless worm-gear clamps
Boost and Turbo Hardware
- Manual boost controller with installation hardware
- Two internal wastegate kits with V-band flanges and clamps
- Two blow-off valve kits with mounting flanges
- Two turbo oiling kits with feed lines, high-temperature return lines, fittings, gaskets, and hardware
- Electronic turbo timer with wiring
Cooling and Oil-Control Components
- 15-row aluminum oil cooler
- Two 52-inch braided stainless oil lines with swivel fittings
- Billet aluminum oil-filter adapter with 1/8-inch NPT accessory ports
- Reversible slimline cooling fan
- Polished oil catch can with installation hardware
- 38 mm coolant-sensor adapter with clamps
Fuel-System Components
- Adjustable fuel-pressure regulator with gauge and installation hardware
- Reusable billet aluminum fuel filter with -6AN fittings
Installation Notes
- Professional installation is strongly recommended.
- Engine management and professional tuning are required for safe operation.
- Fuel-system, ignition, exhaust, cooling, and internal-engine upgrades may be required for your power target.
- Verify all clearances, fittings, and component compatibility before installation.
- Do not rely on generic vehicle fitment data for this custom turbo system.
Package contents should be inspected before installation. Contact MMI Speed Shop if you need help confirming the kit for your Small Block Chevy project.