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ARC Billet Sidecovers

ARC Billet Sidecovers for Predator 212, Predator Ghost, Predator 224, GX200, GX390 & Briggs Engines

Upgrade your engine with ARC billet sidecovers, precision-machined aluminum replacement covers engineered for strength, durability, and high-RPM performance. Designed for Predator 212 (Hemi & Non-Hemi), Predator Ghost, Predator 224 (Non-Hemi), Honda GX200/Clone, GX390, Ducar, Tillotson, Briggs Animal, and other OHV small engine platforms, ARC Racing billet sidecovers replace weak OEM cast covers with rugged 6061-T6 construction for superior crankshaft support and long-term reliability.

Built for competitive kart racing and high-output performance builds, these sidecovers help strengthen your engine’s bottom end, reduce crank flex, and improve overall stability under extreme load conditions.

Why Choose ARC Billet Sidecovers?

  • Precision-machined 6061-T6 billet aluminum construction for superior strength and durability.
  • Engineered for high-RPM small engine applications in competitive kart racing and performance builds.
  • Improves crankshaft stability and bottom-end strength to reduce flex under extreme load conditions.
  • Compatible with Predator 212 (Hemi & Non-Hemi), Predator Ghost, Predator 224, GX200/Clone, GX390, Ducar, Tillotson, and Briggs platforms for versatile performance upgrades.
  • Trusted by competitive racers and professional engine builders nationwide.

Whether you’re assembling a race-ready engine or reinforcing a high-performance setup, ARC billet sidecovers deliver the durability, precision, and reliability serious builders demand.

Engineered for Strength & Reliability

ARC Racing billet sidecovers are precision-machined to tight tolerances for maximum durability and high-RPM performance. Key design features often include:

  • Dual crankshaft bearing support for increased stability and reduced flex under load
  • Reinforced camshaft support for improved valvetrain reliability
  • Integrated seal bosses for enhanced oil control and leak prevention
  • Oil fill and drain provisions for easier maintenance and servicing
  • Precision-machined gasket surfaces for consistent and secure sealing

Compared to stock cast covers, these performance upgrades improve crankshaft alignment, bottom-end strength, and overall structural integrity — making ARC billet sidecovers ideal for competitive kart racing and high-output small engine builds.

Frequently Asked Questions – ARC Billet Sidecovers

What does a billet sidecover do?

A billet sidecover replaces the stock cast engine side cover with a stronger, precision-machined component that supports the crankshaft and improves bottom-end stability in high-performance small engine builds, including Predator 212 (Hemi & Non-Hemi), Predator Ghost, Predator 224, GX200, GX390, Ducar, Tillotson, and Briggs platforms.

Why upgrade from a stock cast side cover?

Stock cast covers can flex under high RPM and heavy load. ARC billet sidecovers are built from 6061-T6 aluminum for improved rigidity, better crankshaft alignment, and increased durability in competitive kart racing and demanding performance environments.

Which engines are ARC billet sidecovers compatible with?

ARC billet sidecovers are commonly used on Predator 212 (Hemi & Non-Hemi), Predator Ghost, Predator 224, Honda GX160, GX200, GX390, 196cc Clone, Ducar, Tillotson engines, and select Briggs & Stratton racing platforms. Always confirm exact fitment and engine configuration before ordering.

Do ARC billet sidecovers include bearings?

Many ARC billet sidecovers are designed for dual bearing support, but included components may vary by model. Review the individual product listing to confirm whether bearings, seals, or installation hardware are included.

Will a billet sidecover increase horsepower?

A billet sidecover does not directly add horsepower. Its primary advantage is improving crankshaft stability and bottom-end strength, which supports reliable high-RPM performance in racing applications.

Do I need special gaskets or hardware?

Using the correct gasket kit, seals, and hardware is recommended for proper fit and sealing. ARC offers related components to help ensure a secure installation and long-term reliability.

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GX200 Crankshaft Specs and Fitment

Understanding crankshaft specifications ensures proper compatibility with your engine:

  • Stock Stroke: Approximately 2.123 - 2.125 inches
  • PTO Size: Must match your clutch or torque converter
  • Rod Journal Size: Must match your connecting rod 1.180 MAX
  • Engine Compatibility: GX200 and most 196cc clone engines

Matching these specs is essential for correct installation and long-term reliability.

OEM vs Performance Crankshafts (Know the Difference)

OEM GX200 crankshafts are designed for stock engine performance and reliability.

Unlike performance crankshafts:

  • OEM crankshafts are not dynamically balanced for high RPM racing
  • They are not intended for extreme performance builds
  • They are designed for standard operating conditions and longevity

If you are building a high-performance or racing engine, a billet or performance crankshaft may be required. For standard rebuilds and everyday use, OEM crankshafts are the correct choice.

Compatible Engines and Applications

GX200 crankshafts are widely used in:

  • Honda GX200 engines
  • 196cc clone engines
  • Go-karts and minibikes
  • Utility and recreational small engines

They are ideal for restoring engines used in both work and recreational applications.

Why Choose GX200 Crankshafts

Crankshafts are manufactured for consistency and reliability:

  • Built to OEM specifications for proper fitment
  • Trusted for engine rebuilds and replacements
  • Designed for durability in standard operating conditions

Our components are relied on by engine builders and small engine enthusiasts who need dependable parts that fit correctly and perform as expected.

Find the Right GX200 Crankshaft for Your Engine

Choosing the correct GX200 crankshaft ensures your engine runs properly and reliably.

Whether you're completing a rebuild or replacing a damaged component, ARC Racing offers OEM-quality crankshafts designed for straightforward installation and long-term use.

GX200 Crankshaft FAQ

What does a GX200 crankshaft do?
It converts the up-and-down motion of the piston into rotational force to power the engine.

What is the stock GX200 crankshaft stroke?
Approximately 2.123 - 2.125 inches.

Are OEM crankshafts balanced?
OEM crankshafts are manufactured to factory balance standards but are not dynamically balanced like performance crankshafts.

Do I need a performance crankshaft?
For standard use and rebuilds, an OEM crankshaft is the best choice.

Shop ARC Racing Billet Sidecovers

Browse our complete selection of ARC billet sidecovers, gasket kits, bearings, and installation hardware to finish your build with confidence. Designed for Predator 212 (Hemi & Non-Hemi), Predator Ghost, Predator 224, Honda GX200, GX390, 196cc Clone, Ducar, Tillotson, and select Briggs racing engines, ARC Racing sidecovers deliver strength, precision, and high-RPM reliability. Enjoy fast shipping and expert technical support to help you choose the correct components for your engine platform.

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