Best Flat Plane Crank LS Kit for High-Performance Engines
When building or upgrading LS family engines, a reliable flat plane crank setup often hinges on precise pinning and alignment tooling. The following LS crank pin kits and damper pinning fixtures are designed to secure the crankshaft and balancer, reduce slip under boost, and simplify installation. This guide covers five top options, highlighting compatibility, construction quality, and key features to help you choose the right kit for Gen III, IV, and V engines.
| Product | Brand | Key Benefit |
|---|---|---|
| For LS LT Crank Pin Kit Crankshaft Damper Drill Pinning Fixture Tool | Camoo Store | Widely compatible; robust carbon steel; anti-rust coating. |
| Crank Pin Kit Crankshaft Damper Drill Pinning Fixture Tool | EnRand Store | Gen 3–5 compatibility; durable coating; essential for high-HP builds. |
| MSS Crank Pinning Pin Keying Key Kit MADE USA | Massive Speed System Store | USA-made billet aluminum; carbide drill guide; includes all pins. |
| Crank Pin Set Fits for LS LT LS1 LS2 LS3 | — | Wide engine family fit; complete hardware; reliable pinning kit. |
| ICT Billet LS LT Crank Pin Kit | ICT Billet Store | Made in USA; drill sleeve fixture; compatible with Gen 3–5. |
For LS LT Crank Pin Kit Crankshaft Damper Drill Pinning Fixture Tool
- Application: Suitable for LS LT LS1 LS3 LT1 LQ4 LQ9 LSX LSA 5.3 6.0; compatible with Gen 3, 4, 5 engines.
- Function: Helps drill pinholes in the crankshaft and balancer to prevent slipping when using a supercharger.
- Quality: Carbon steel construction; high-strength and wear-resistant; powder coated for anti-rust and anti-oxidation.
Crank Pin Kit Crankshaft Damper Drill Pinning Fixture Tool
- Compatibility: Gen 3, 4, & 5 engines; LS LT LS1 LS3 LT1 LQ4 LQ9 LSX LSA 5.3 6.0.
- Construction: Carbon steel; wear-resistant; powder coated for rust resistance.
- Use: Essential for pinned crankshaft and balancer to prevent slipping under high horsepower.
MSS Crank Pinning Pin Keying Kit MADE USA
- Construction: Billet aluminum with carbide drill guide to prevent drill bit walking.
- Fit: 97-current GM LS family engines; includes all necessary hardware and five dowel pins.
- Benefit: Top-tier USA manufacturing quality for precise alignment and longevity.
Crank Pin Set Fits for LS LT LS1 LS2 LS3 LT1 LQ4 LQ9 LSX LSA 5.3 6.0 Engines
- Wide Application: Compatible with Gen 3, 4, & 5 LS engines; supports 5.3/6.0 displacements.
- High Performance: Pin and align to prevent slipping under boost; precise threads for secure fit.
- Package Includes: Drill guide, drill bit, securing bolt, and hardened dowel pins.
ICT Billet LS LT Crank Pin Kit
- Includes: drill sleeve fixture, drill bit, tool hold down bolt, 2 pcs 1/4″ dowel pins; five items total.
- Materials: USA-produced steel; billet construction; designed for longevity.
- Compatibility: Gen 3–5 LS engines; suitable for high-performance builds requiring secure pinning.
Buying Guide
Selecting the right flat plane crank LS kit hinges on several factors. First, confirm engine compatibility across Gen III, IV, and V families to ensure the tool fits your LS platform (LS1, LS2, LS3, LT, LQ4, LQ9, LSX, LSA, etc.). Second, evaluate material quality and coatings. Carbon steel with powder coating offers durability and corrosion resistance, while billet aluminum tools can provide lightweight precision with rigid drill guides. Third, consider included hardware and ease of use: complete kits with drill guides, pins, and bolts shorten installation time and reduce misalignment.
Depth of use matters. For boosted or high-horsepower applications, pinned crankshafts and balancers prevent slipping under load. Look for carbide drill guides or solid sleeves that minimize drill bit wandering, guaranteeing accurate pinholes. Fourth, vendor support and availability of USA-made components can influence longevity and reliability. Finally, assess value in relation to included accessories—some kits provide more pins or dowel options, which can be helpful if you plan multiple builds or maintenance cycles.
Compatibility perspectives vary among builders. Some users prioritize all-in-one American-made kits for easy swaps during routine maintenance, while others prefer modular options that let them pick specific features (drill guides, pins, and bolts) based on their compressor, supercharger, or turbo setup. It’s also wise to verify that the kit’s threads and fasteners match your balancer and crank hardware to avoid cross-threading or misfit issues.
In short, choose a kit that combines precise machining, durable materials, broad engine compatibility, and complete installation components. This combination helps ensure a secure, repeatable pinning process that supports reliable performance in flat plane LS builds.