Cometic
Cometic, EST top end gasket kit. Twin Cam 4" bore
Cometic, EST top end gasket kit. Twin Cam 4" bore
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With MLS (Multi-Layer-Steel) .040" thick head gaskets. .010" SLS (Single-Layer-Steel) cylinder base gaskets. .020" SLS rocker cover gaskets. SLS gaskets have .001" of high temperature viton rubber coating on both sides. Kit comes with all gaskets; seals and o-ring for a complete top end rebuild. Note: Kit comes with 99-04 style valve seals and 99-10 style breather gaskets.
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Why buy from Forty5°
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Verified compatibility
Every part we ship is checked against your bike's platform, year, and engine. If it doesn't fit, we tell you before you check out.
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Workshop installation
Book a serviceHave us fit it. Book installation at parts intake — same-day on most jobs, master techs only.
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Founder-led aftersales
Get in touchQuestions after fitment? You'll speak to the people who installed it. We answer email and WhatsApp seven days a week.