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Cometic C9976HB EST Top End Gasket Kit for Harley-Davidson Twin Cam 4-1/8" Bore

Manufacturer

Picture for manufacturer Cometic

Part Number

C9976HB
7 reviews
Sale Price

$82.90

Estimated ship date Thursday, November 26

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Live-in-stock inventory

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Fitment guaranteed

Fitment guaranteed

Product Details

The Cometic C9976HB EST (Extreme Sealing Technology) Top End Gasket Kit provides a complete sealing solution for Harley-Davidson Twin Cam engines with a 4-1/8" cylinder bore. This comprehensive kit includes all necessary gaskets, seals, and O-rings required to rebuild the top end from the cylinder base upward.

Key Features:

  • Multi-Layer Steel (MLS) head gaskets with embossed stainless steel construction for superior heat dissipation and compression sealing
  • Steel Viton-coated base gaskets provide exceptional fuel and oil resistance
  • Blue Viton valve stem seals for reliable valve guide sealing
  • AFM (Aluminum Foam Material) race-style exhaust gaskets that won't fray into exhaust ports
  • One-piece Evolution rocker box base gasket made from .020" thick embossed Viton-coated steel
  • Proprietary rubber coating on stainless steel gaskets draws heat away from combustion ring to eliminate hot spots

Cometic EST gasket kits utilize premium materials engineered for high-performance and rebuilt V-Twin engines. The multi-layer steel construction provides exceptional resilience against the heat and flexing inherent in performance applications, making this kit ideal for stock rebuilds, big bore conversions, and high-compression builds. Made in the USA.

Easy to order

Very quick order response and delivery. The part was as stated and fit perfectly.

This was exactly what we were looking for.

Oh man it was great! I found what I was looking for in no time.

First time using this business and will continue if all goes well, excited

Fast delivery an power pack fixed boat.cheaper than a boat machinc would charge to look at problem

Website is easy to navigate, prices are reasonable and the website was smooth without any hiccups.

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