Cometic Nissan L28 89mm .040in MLS Head Gasket - Left (Non-Turbo)
The Cometic C4580-045 MLS Head Gasket is the best high-performance cylinder head gasket for 1975-1980 Nissan 280Z / 280ZX with the L28 engine (non-turbo applications). This multi-layer steel gasket features three embossed stainless layers with Viton rubber coating for superior sealing under high compression, boosted setups, or engine rebuilds, providing maximum combustion sealing, rebound, and corrosion resistance while maintaining precise .040" compressed thickness.
Key Features
- Multi-Layer Steel (MLS): Three embossed stainless layers with Viton coating for unmatched sealing and rebound
- 89mm Bore: Precision-cut round bore matches L28 engine specifications
- .040in Compressed Thickness: Ideal for stock or mildly modified engines requiring proper compression height
- No Sealants Required: Advanced design withstands shearing forces between aluminum heads and iron blocks
Specifications
| Specification | Detail |
|---|---|
| Part Number | C4580-045 |
| Position | Left (Driver Side) |
| Bore Size | 89mm Round |
| Compressed Thickness | .040 inches |
| Number of Layers | 3 |
| Material | Multi-Layer Stainless Steel w/ Viton Coating |
| Application | Non-Turbo L28 Engines |
| Country of Origin | United States |
| Warranty | Limited |
Product Notes
- Left side gasket only – order matching right side (C4580-045R or equivalent) for complete set
- Ideal for engine rebuilds, high-compression builds, or mild forced induction
Installation Notes
- Estimated time: Included in full head gasket job (8-12+ hours), advanced difficulty
- Use ARP head studs, proper torque sequence, and surface prep – professional engine builder recommended
This Part Fits
| Year | Make | Model | Notes |
|---|---|---|---|
| 1975-1978 | Nissan | 280Z / 280Z 2+2 | L28 2.8L Non-Turbo |
| 1979-1980 | Nissan | 280ZX / 280ZX 2+2 / GL | L28 2.8L Non-Turbo |
Why Choose Cometic MLS Gaskets?
- Leading manufacturer of multi-layer steel head gaskets for high-performance and racing applications
- Viton-coated stainless layers provide superior sealing, rebound, and heat resistance
- Trusted by engine builders for reliability in boosted, high-compression, and naturally aspirated builds
Frequently Asked Questions
-
Q: Is this for turbo or non-turbo?
A: Specifically non-turbo L28 applications different part for turbo variants. -
Q: Do I need right side too?
A: Yes, this is left side only order matching right side gasket for complete set. -
Q: What thickness is compressed?
A: .040 inches compressed ideal for stock or mildly modified engines. -
Q: Do I need sealants?
A: No, MLS design requires no additional sealants use proper torque sequence.
Shipping & Handling
- Method: UPS/FedEx Ground
- Availability: In stock, ships same or next business day
- Packaging: Official Cometic retail box
Cometic Gasket
Cometic Gasket produces precision-machined engine sealing components used by professional engine builders and race teams worldwide. MLS head gaskets, intake gaskets, and complete engine gasket sets from Cometic are engineered to hold seal under the elevated cylinder pressure and heat cycling that OEM gaskets cannot always survive in high-performance applications.Popular UpgradesCometic MLS (multi-layer steel) head gaskets are the most-requested upgrade for turbocharged, supercharged, and naturally aspirated builds where cylinder pressure exceeds the limits of OEM composite gaskets. Available in bore sizes and thicknesses calibrated to manage compression ratio, Cometic MLS head gaskets are a standard specification for any serious engine build. Intake manifold gaskets, exhaust gaskets, and cam cover sets round out the range for complete engine assembly work.Why use Cometic MLS head gaskets over OEM?Cometic MLS head gaskets use multiple layers of embossed stainless steel that create a ...
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