If you’re equipping a 400 small block engine for a turbo setup, you want a kit that blends performance potential with reliable components. This guide highlights five relevant options, showing who they’re best for, and how they compare. Ideal buyers include DIY enthusiasts, street racers looking for steady horsepower gains, and builders who want a more complete package with key components included.
| Product | Best For | Why It Stands Out |
|---|---|---|
| Torque Converter Bolt Kit 3/8″-16 Grade 5 for Turbo 350/400 Replace 38765 | Cost-conscious bolt replacement | Pack of 3, essential hardware for reliability during turbo use |
| SMALL/SMALLER TH400 Rear Seal & Bushing Turbo 400 Transmission | Rebuild-ready with seals | Small, targeted service kit for TH400 reliability |
| Turbo Repair Kit, 18Pcs Turbo Rebuild Kit | Comprehensive rebuild | Includes multiple accessories for turbo repair and renewal |
| 3 PCS Car Privacy Curtains Kit | Comfort and privacy with interior mods | Not turbo-focused but useful for interior shading during builds |
| Complete 6-71 Roots Supercharger Kit | High-power street/strip build | Blower-style boost option with manifold and hardware |
Buyer’s note: The products listed vary in focus—from essential hardware and maintenance kits to full turbo-related components and even interior enhancements. Use this guide to pick items that best align with your 400 small block turbo project stage, whether you’re assembling a fresh build or upgrading an existing setup.
Torque Converter Bolt Kit For Turbo 400
Best for: Builders needing a reliable bolt kit to secure the turbo setup on a Turbo 400 system. Selected for its essential hardware focus and compatibility with 3/8″-16 fasteners common in turbo installations.
Caution: Only as a bolt replacement kit; not a full turbo assembly or rebuild kit.
TH400 Rear Seal & Bushing Kit
Best for: Quick, targeted TH400 maintenance during a turbo-focused rebuild. Selected for matching seals and bushings that support proper rear-end sealing and fitment.
Caution: Not a full rebuild kit; may require additional components for a complete turbo upgrade.
Turbo Rebuild Repair Kit 18Pcs
Best for: Enthusiasts performing a complete turbocharger refresh. This kit covers many common wear parts and standard components for a rebuild.
Why selected: The 18-piece assortment provides a broad set of parts needed to restore turbo function. Aids in maintenance and renewal without a full rebuild from scratch.
Caution: Verify compatibility with your specific turbo model before use; data may not cover all variants.
Car Privacy Curtains Kit
Best for: Vehicles needing sun protection and interior privacy during parked sessions or test fits. Included for completeness in an overall project lifestyle kit.
Why selected: While not a turbo component, window shade kits can improve comfort during long builds or road tests by reducing glare and heat exposure.
Caution: Not a performance part; does not affect engine or turbo function.
Complete 6-71 Roots Supercharger Kit
Best for: High-boost, street-legal torque with a roots-style blower approach. Selected for including manifold, pulleys, belt, and gaskets for a broader boost pathway.
Caution: A supercharger kit is not a traditional turbo kit; installation and compatibility depend on engine bay layout and supporting systems.
Buying Guide: Key Considerations For A 400 Small Block Turbo Project
What to check before buying a turbo kit or related components for a 400 small block:
- Engine compatibility: Confirm bore spacing and mounting compatibility with the 400 small block and any existing manifolds.
- Turbo vs. blower approach: Decide between a turbocharger path or a positive-displacement blower path, as this affects required hardware, headroom, and tuning needs.
- Hardware quality: Prioritize kits that include essential fasteners, seals, and gaskets, reducing the need for additional sourcing.
- Maintenance and rebuild readiness: For seals, bushings, and rebuild kits, ensure you have a clear plan for servicing to maintain boost reliability.
- Installation scope: Distinguish between complete kits and maintenance-only bundles to avoid missing critical components.
- Space and weight considerations: Ensure the engine bay has sufficient clearance for turbo plumbing or a supercharger, plus intercooler routing if required.
FAQ
- What is the main purpose of a 400 small block turbo kit? A turbo kit enables forced induction for increased horsepower and torque on a 400 small block engine, often for street or strip use.
- Do these products require professional installation? Some parts are installable by experienced DIY enthusiasts; complex kits like complete turbo or supercharger packages may benefit from professional installation.
- Is a rebuild kit suitable for distant turbo-related parts? Rebuild kits cover wearable parts that sustain performance and reliability during boosted operation.
- Can I mix components from different kits? Mixing is possible but requires careful compatibility checks to avoid fitment or timing issues.
- What should I consider for cooling and fuel management? Boosted engines often need upgraded cooling and fuel management systems to prevent detonation and maintain safe operation.
- Are these kits appropriate for daily driving? Some options emphasize performance and may require additional tuning; evaluate use-case and reliability needs for daily driving.