Cometic Top End Gasket Kit 98 MM Arctic Cat 650 MudPro / H1 / Prowler / TRV With a refresh of the top end or a full rebuild, consider the high performance Top End Gasket Kit from Cometic. Ensuring highest quality, each gasket material matches or surpasses OEM specifications. Features: Raises compression for better low-end power Graphite gaskets feature a steel core, laminated on both sides with flexible graphite Fiber gaskets designed for maximum seal, flexibility and torque retention O-ring gaskets meet or exceed OEM specs