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Cometic C5703-040 GM LSX Small Block Cylinder Head Gasket Bore MLX - Gen-4 V8 4.165 040

Part of: Cometic GM LSX Small Block Cylinder Head Gasket Bore MLX

Other options in this family: Cometic C5077-052 Cometic C5078-052 Cometic C15503-052 Cometic C5075-052 Cometic C5076-050

Manufacturer

Picture for manufacturer Cometic

Part Number

C5703-040
11 reviews
Sale Price

$119.73

Estimated ship date Saturday, November 28

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Product Details

The Cometic C5703-040 is a Multi-Layer Steel (MLX) cylinder head gasket specifically engineered for GM LSX Gen-4 Small Block V8 engines. This precision-manufactured gasket features a .040" compressed thickness and is designed for a 4.165" bore diameter, making it ideal for performance builds and engine rebuilds requiring exacting tolerances.

Key Features:

  • Multi-Layer Steel (MLX) construction provides superior sealing and durability under high-performance conditions
  • .040" compressed thickness allows for precise compression ratio tuning
  • 4.165" bore diameter accommodates standard and slightly overbored LSX applications
  • Left-hand side (LHS) gasket - sold individually for custom applications or single-side replacement
  • Engineered specifically for GM LSX Gen-4 Small Block V8 platforms
  • Cometic's MLX technology features multiple layers of stainless steel with advanced coating for optimal sealing

Cometic Gaskets are renowned in the performance and racing industry for their precision engineering and reliability. The MLX design combines the strength of multiple steel layers with the conformability needed to seal modern high-performance cylinder heads, making this gasket an excellent choice for street performance, racing, and high-boost forced induction applications.

Products specifications

Prop 65

WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov

Material

MLX

very good

Great price and really fast shipping. Great communication as well.

Lowest price on the part i needed out of anyone online. Incredibly fast shipping, arrived in two days. Don't hesitate to buy from them. I'm now a customer for life.

Easy to use website. Could use more detail on items. I had to get fit requirement from maker.

thanks

Quick

Easy search and nav for what I needed.

I bought this item for my fiance and he loves it! He was completely happy with the price we paid...

Fast shipping, great customer service, cheaper than everyone else for my plug wires! Will definitely buy from again, I am very satisfied!!! A+++

I received my ARP head studs as described and on time with zero problems, and cheaper than anywhere else.Will use again!!!

This was my first order with Autoplicity. Their prices were great, and the ordering process very easy. I was a little frustrated at first, as the order didn't arrive as expected. When I called, it took a little work, but I finally got the info that it was shipping from the manufacturer, and did get the tracking info. The parts arrived when tracking said it should. Would I place another order with Autoplicity? Short answer is yes!

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