Cometic GM LS1 SB 3.910 inch Bore .040 inch MLS Headgasket
Cometic GM LS1 SB 3.910 inch Bore .040 inch MLS Headgasket
Out of stock
Couldn't load pickup availability
Cometic GM LS1 SB 3.910 inch Bore .040 inch MLS Headgasket
Experience unparalleled sealing performance with the Cometic GM LS1 SB MLS Headgasket, meticulously designed for high-output engines. Crafted from multiple embossed layers of stainless steel, this head gasket ensures exceptional strength and durability, making it an ideal choice for both enthusiasts and professionals alike.
Key Features:
- Multi-Layer Steel (MLS) Construction: Composed of several embossed layers of stainless steel for increased strength and reliability.
- Viton Rubber Coating: The outer layers are coated with Viton, a heat-resistant elastomer that can withstand temperatures up to 250°C (482°F).
- Compressed Thickness: With a compressed operating thickness of just 0.040 inches, this gasket is optimized for sealing efficiency.
- No Sealants Required: Designed to provide maximum sealing performance without the need for additional sealants.
- Versatile Compatibility: Perfect for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks, accommodating various engine configurations.
Benefits:
- Enhanced Sealing: The MLS design effectively withstands the shearing forces from different materials, providing a reliable seal under extreme conditions.
- Corrosion Resistance: The stainless steel layers have superior corrosion resistance, ensuring long-lasting performance.
- Customizable Thickness: The uncoated stainless steel shim layer can be adjusted to meet specific thickness requirements, perfect for custom engine builds.
Use Cases:
Ideal for performance enthusiasts, automotive technicians, and serious hobbyists working on GM Gen III/IV Small Block V8 LS Series engines, the Cometic GM LS1 SB MLS Headgasket is the ultimate choice for achieving optimal engine performance and durability. Elevate your build and experience the difference today!
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.

