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Start ShoppingCometic C7804 High-Performance Top End Gasket Kit - MLS Head Gasket for 4-Stroke Engines
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Description
Upgrade your engine's reliability and performance with Cometic's C7804 High-Performance Top End Gasket Kit. Designed for serious riders, this comprehensive kit ensures optimal sealing and longevity for high-output 4-stroke engines.
Key Features
- MLS Multi-Layer Steel Head Gasket: Features embossed layers and Viton coating for superior heat resistance and sealing integrity.
- Complete Component Set: Includes head gasket, base gasket, intake/exhaust gaskets, valve stem seals, and specialized O-rings for a perfect fit.
- Performance-Optimized Design: Engineered for modern 4-stroke engines to handle high RPMs and boost pressures without leaks.
- USA-Made Quality: Manufactured in the USA with precision engineering for unmatched durability and reliability.
Why Choose This Product
Cometic's C7804 kit delivers peace of mind with its advanced MLS technology, eliminating common gasket failure points. The complete set reduces installation time while ensuring maximum compression and sealing efficiency. Ideal for track days, drag racing, or daily performance driving, this kit maintains factory tolerances while enhancing engine longevity under extreme conditions.
SKU:
GM011593EF
MPN:
C7804
UPC:
191070395865
Category:
Gaskets/Seals
Brand:
Cometic
Stock:
Out of Stock
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Upgrade your engine's reliability and performance with Cometic's C7804 High-Performance Top End Gasket Kit. Designed for serious riders, this comprehensive kit ensures optimal sealing and longevity for high-output 4-stroke engines.
Key Features
- MLS Multi-Layer Steel Head Gasket: Features embossed layers and Viton coating for superior heat resistance and sealing integrity.
- Complete Component Set: Includes head gasket, base gasket, intake/exhaust gaskets, valve stem seals, and specialized O-rings for a perfect fit.
- Performance-Optimized Design: Engineered for modern 4-stroke engines to handle high RPMs and boost pressures without leaks.
- USA-Made Quality: Manufactured in the USA with precision engineering for unmatched durability and reliability.
Why Choose This Product
Cometic's C7804 kit delivers peace of mind with its advanced MLS technology, eliminating common gasket failure points. The complete set reduces installation time while ensuring maximum compression and sealing efficiency. Ideal for track days, drag racing, or daily performance driving, this kit maintains factory tolerances while enhancing engine longevity under extreme conditions.| SKU | GM011593EF |
|---|---|
| MPN | C7804 |
| UPC/GTIN | 191070395865 |
| Brand | Cometic |
| Category | Gaskets/Seals |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Suzuki | LT‑R450 | 2006-2009 |
Frequently Asked Questions
According to Dennis Kirk’s fitment data, Cometic C7804 fits 2006–2009 Suzuki LT‑R450 models. It is not listed for other Suzuki ATVs or motorcycles, so confirm your year/model before ordering.
Yes. C7804 is a high‑performance top end gasket kit and includes the head gasket plus the primary upper‑engine gaskets and O‑rings needed for a top‑end rebuild on the LT‑R450. It does not include bottom‑end or crankcase gaskets.
Cometic’s MLS head gaskets are commonly used with high‑compression and big‑bore setups. However, piston manufacturers sometimes recommend a specific head‑gasket thickness or part number, so verify compatibility with your piston and build specs.
In most applications you should not use additional sealant on the MLS head gasket sealing surfaces. Install it clean and dry on properly prepared surfaces. Only use sealant where the OEM service manual specifies it, typically on certain case joints or specific paper gaskets.
No. Head gaskets and most top‑end gaskets are designed for one‑time use. Reusing them can lead to coolant or compression leaks. Always replace with a new kit during disassembly.
Installation Guide
Difficulty
Medium
Est. Time
3 hr 0 min
Tools Required
- Metric socket set
- Metric combination wrenches
- Torque wrench (inch‑lb and ft‑lb recommended)
- Feeler gauges (for valve clearance if checked/adjusted)
- Plastic scraper or razor blade scraper (for old gasket removal)
- Brake cleaner or gasket surface cleaner
- Shop rags
- Service manual for torque specs and sequence
Pro Tips
- Always reference the Suzuki LT‑R450 service manual for correct torque specs and tightening sequence when using the Cometic MLS head gasket.
- Dry‑fit the gaskets to confirm orientation and hole alignment before final assembly.
- Lightly oil cylinder walls and piston skirts before sliding the cylinder back on to avoid scoring.
- After first heat cycle, recheck coolant level and look for any signs of seepage around the head gasket.
- If the engine previously overheated or blew a head gasket, have the head checked and machined flat by a machine shop before installing the Cometic kit.
Common Mistakes to Avoid
- Reusing old gasket material on sealing surfaces instead of cleaning to bare metal
- Not following the proper torque sequence and torque values for the cylinder head
- Installing the head gasket upside‑down or misaligned with coolant/oil passages
- Using RTV/silicone on surfaces that are designed to seal with the MLS gasket alone
- Failing to check cylinder head and cylinder deck for warpage before reassembly
Comparison vs Stock/OEM
Cometic’s High Performance Top End Gasket Kits typically use multi‑layer stainless steel head gaskets and upgraded materials compared to many OEM composite gaskets. They are designed to handle higher cylinder pressures and temperatures found in performance applications.
Improvements
- Improved sealing for high‑compression and race engines
- Better resistance to detonation and head‑gasket failure under heavy load
- High‑quality materials and precise embossing for consistent clamp load
- Often more durable than OEM in repeated heat‑cycle and racing conditions
Considerations
- Requires very clean and flat sealing surfaces for best results; warped heads or cylinders may require machining.
- Generally designed for stock‑thickness replacement; verify thickness if you are tuning squish or compression.
- Follow torque procedures carefully; improper installation can negate the advantages of the MLS design.
Durability & Warranty
Expected Lifespan
Service life is typically equivalent to or better than OEM when installed on flat, clean surfaces and used within intended performance limits; many race builds run full seasons without head‑gasket issues.
Warranty
Standard Cometic manufacturer warranty against defects in materials and workmanship (specific terms vary by seller; check retailer or Cometic policy at time of purchase).
Maintenance
No direct maintenance to the gaskets themselves; monitor coolant level and engine temperature, avoid detonation, and inspect for external leaks during regular service intervals. Replace gaskets any time the head or cylinder is removed.
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