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In-Store Pickup Location

Cometic MLS Head Gaskets C5245-040

Cometic C5245-040 - Cometic MLS Head Gaskets
  • Cometic MLS Head Gaskets

    Cometic MLS Head Gaskets

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Head Gasket, MLS, 4.060 in. Bore, .040 in. Compressed Thickness, Chevy, Each

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WARNING: This product can expose you to a chemical such as Carbon Black that is known to the state of California to cause cancer. For more information, visit

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Brand: Cometic

Manufacturer's Part Number: C5245-040

Part Type: Head Gaskets

Product Line: Cometic MLS Head Gaskets

Summit Racing Part Number: CGT-C5245-040

UPC: 191070004583

Bore (in): 4.060 in.

Bore (mm): 103.124mm

Gasket Material: Multi-layer stainless steel

Compressed Thickness (in): 0.040 in.

Compressed Volume (cc): 8.486cc

Lock Wire: No

Quantity: Sold individually.

Notes: Round bore style.

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Cometic MLS head gaskets are constructed from multiple layers of stainless steel for strength and contain load-controlled embossments that conform load distribution across the sealing area. This creates an exceptional seal by requiring less clamp load--resulting in less bore distortion. The stainless steel outer layers utilizing FKM (Viton®) rubber coating, a high-temperature and chemical-resistant polymer. A topcoat of PTFE aids in resistance to fret and increased cold sealing. MLS head gaskets are available for most aftermarket cylinder heads; as with all of Cometic's MLS head gaskets, no sealants or re-torque is required.

Questions & Answers Ask a Product Question

It says its for use with Brodex heads, are they compatible with factory Chevy heads. (1969/1970)

Asked by DONALD on October 17, 2017


I've been told there more compatible with aluminum heads and seal great but not sure about cast stock heads

BYRON from TN answered on October 23, 2017

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refreshing a 60 over 383 with afr aluminum heads. Had too install two inserts for head bolts. The outside hole for the insert is ~0.030 into the sealing ring on a 4.166 bore gasket. I am assuming that if I go with 4.08 or 4.06 gaskets, it will pull the cylinder seal away from the insert repair area.
?Is this correct?
?And would you rec a 4.08 or a 4.06?? for a 60 over with some wear.

Asked by JACK on June 12, 2018

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Some parts are not legal for use in California or other states with similar laws / regulations

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