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4-Stroke Big Bore Top End Gasket Kit
4-Stroke Big Bore Top End Gasket Kit
4-Stroke Big Bore Top End Gasket Kit
4-Stroke Big Bore Top End Gasket Kit
4-Stroke Big Bore Top End Gasket Kit
4-Stroke Big Bore Top End Gasket Kit
4-Stroke Big Bore Top End Gasket Kit
4-Stroke Big Bore Top End Gasket Kit
4-Stroke Big Bore Top End Gasket Kit
  • SKU: 68-4949-51s
  • Availability: in stock Many in stock Out of stock You can purchase this product but it's out of stock

4-Stroke Big Bore Top End Gasket Kit

$43.81
Shipping calculated at checkout.
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DESCRIPTION

Athena 4-Stroke Big Bore Top End Gasket Kit

Upgrade performance and reliability with the Athena 4-Stroke Big Bore Top End Gasket Kit — a complete sealing solution engineered for big-bore cylinder upgrades, high-compression engines, and demanding riding conditions.

  • Complete kit: includes all head, base, valve cover and necessary seals for a full top-end rebuild.
  • High-quality materials: multi-layer steel, advanced elastomers and precision-cut components resist heat, oil and combustion pressure.
  • Perfect fit: CNC-matched profiles ensure proper compression sealing and consistent performance after big-bore or porting work.
  • Durable & reliable: engineered to withstand boosted temperatures and higher cylinder pressures common with big-bore upgrades.
  • Easy installation: OEM-compatible form factor and clear sealing surfaces reduce installation time and rework.

Whether you’re rebuilding for track, trail or street, trust Athena’s reputation for racing-grade gaskets to deliver leak-free sealing and consistent compression. Ideal for tuners and enthusiasts seeking long-lasting top-end integrity.

Fits: compatible with a range of 4-stroke big-bore applications — check part number compatibility before ordering.

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