27-3543-N_002__09135.webp (Copy)
27-3543-N_002__09135.webp (Copy)

GX420 STD 92MM Piston Kit without Rings (Copy)

$247.00

27-3622 92mm Diamond Piston Kit (No Rings)

The 27-3622 Diamond piston kit is a high-performance forged piston designed for GX390 and 460cc big block engines. Built from premium materials, this piston is engineered to handle increased cylinder pressure, higher RPM, and demanding racing conditions.

With a 92mm (3.622") bore, this piston is commonly used in 440cc–460cc builds when paired with stroker crankshafts. It is ideal for builders looking to increase compression, improve combustion efficiency, and maximize engine output.

The forged construction provides significantly greater strength compared to cast pistons, allowing it to withstand extreme heat and stress in high-performance applications.

This kit includes the piston, wrist pin, and retaining clips. Piston rings are NOT included and must be purchased separately to match your specific application and build requirements.

Key Features

  • 92mm (3.622") forged Diamond piston

  • Designed for GX390 and 460cc big block engines

  • Forged construction for high strength and durability

  • Flat-top design for increased compression

  • Precision CNC machined for consistent performance

  • Includes wrist pin and retaining clips

  • Compatible with high-performance and racing builds

Performance Characteristics

  • Increases compression for improved power output

  • Handles high cylinder pressure and RPM

  • Improves combustion efficiency

  • Designed for high-performance and racing applications

  • Supports 440cc–460cc engine builds with stroker setups

What’s Included

  • 92mm Diamond piston

  • Wrist pin

  • Retaining clips

Fitment

  • Honda GX390

  • Predator 420cc engines

  • GX390 / 420 clone engines

  • 440cc–460cc stroker builds

Important Fitment Notice: Designed for 92mm bore applications. Engine block must be machined accordingly. Verify clearance and compatibility before installation.

Important Notes

  • Rings are NOT included — must be purchased separately

  • Recommended piston-to-wall clearance: approximately .0025"

  • Designed for high-performance and racing applications

  • Proper measurement and machining required

  • Check piston-to-valve clearance when using high-lift cams

27-3622 92mm Diamond Piston Kit (No Rings)

The 27-3622 Diamond piston kit is a high-performance forged piston designed for GX390 and 460cc big block engines. Built from premium materials, this piston is engineered to handle increased cylinder pressure, higher RPM, and demanding racing conditions.

With a 92mm (3.622") bore, this piston is commonly used in 440cc–460cc builds when paired with stroker crankshafts. It is ideal for builders looking to increase compression, improve combustion efficiency, and maximize engine output.

The forged construction provides significantly greater strength compared to cast pistons, allowing it to withstand extreme heat and stress in high-performance applications.

This kit includes the piston, wrist pin, and retaining clips. Piston rings are NOT included and must be purchased separately to match your specific application and build requirements.

Key Features

  • 92mm (3.622") forged Diamond piston

  • Designed for GX390 and 460cc big block engines

  • Forged construction for high strength and durability

  • Flat-top design for increased compression

  • Precision CNC machined for consistent performance

  • Includes wrist pin and retaining clips

  • Compatible with high-performance and racing builds

Performance Characteristics

  • Increases compression for improved power output

  • Handles high cylinder pressure and RPM

  • Improves combustion efficiency

  • Designed for high-performance and racing applications

  • Supports 440cc–460cc engine builds with stroker setups

What’s Included

  • 92mm Diamond piston

  • Wrist pin

  • Retaining clips

Fitment

  • Honda GX390

  • Predator 420cc engines

  • GX390 / 420 clone engines

  • 440cc–460cc stroker builds

Important Fitment Notice: Designed for 92mm bore applications. Engine block must be machined accordingly. Verify clearance and compatibility before installation.

Important Notes

  • Rings are NOT included — must be purchased separately

  • Recommended piston-to-wall clearance: approximately .0025"

  • Designed for high-performance and racing applications

  • Proper measurement and machining required

  • Check piston-to-valve clearance when using high-lift cams