C5030-040 Cometic GM LS7 Gen-4 Small Block V8 4.150in Bore .040 Thick MLX Head Gasket
C5030-040 Cometic GM LS7 Gen-4 Small Block V8 4.150in Bore .040 Thick MLX Head Gasket
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C5030-040 Cometic GM LS7 Gen-4 Small Block V8 4.150in Bore .040 Thick MLX Head Gasket
Introducing the C5030-040 Cometic GM LS7 Gen-4 Small Block V8 Head Gasket, engineered for those who demand uncompromising performance and durability from their high-output engines. This innovative head gasket is designed specifically for the GM LS7 Gen-4 Small Block V8, featuring a bore size of 4.150 inches and a thickness of .040 inches.
Key Features:
- Multi-Layer Steel (MLS) Construction: Comprised of multiple embossed layers of stainless steel, providing superior sealing performance.
- Viton Rubber Coating: The outer layers are coated with Viton, enhancing heat resistance up to 250°C (482°F) and ensuring long-lasting durability.
- Compressed Thickness: With a compressed operating thickness of 0.036 inches, this gasket is perfectly designed for your high-performance engine needs.
- Versatile Compatibility: Ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks, capable of withstanding shearing forces.
- Corrosion Resistance: The stainless steel layers not only provide strength but also resist corrosion, ensuring longevity under harsh conditions.
- Adaptable Shim Layer: The uncoated stainless steel center layer can be adjusted to meet various thickness requirements.
Benefits:
- Maximizes sealing performance, crucial for today’s high-capacity engines.
- Eliminates the need for additional sealants, simplifying installation and maintenance.
- Engineered to handle extreme load conditions and surface finishes, making it ideal for racing and performance applications.
Use Cases:
- Perfect for performance enthusiasts looking to enhance their engine's output.
- Suitable for both street and racing applications, ensuring reliability in high-stress environments.
- Can be utilized in various engine builds requiring a robust sealing solution.
Upgrade your engine's performance with the C5030-040 Cometic GM LS7 Gen-4 Small Block V8 Head Gasket and experience the difference in sealing technology that professionals trust!
Shipping & Returns
Shipping & Returns
📦 Shipping:
Orders are processed within 1–2 business days. Standard delivery takes 3–7 business days, depending on your location.
↩️ Returns:
You may return or exchange products within 60 days of receiving your order. Items must be in original condition with proof of purchase. If your item is defective or damaged due to manufacturing issues, we’ll replace it at no additional cost.

