Cometic Chrysler R3 Race Block .056in MLS Cylinder Head Gasket - 4.200in Bore - W2 Heads

SKU: CGSC5466-056

Head Gaskets

CG Head Gaskets...

Cometic Chrysler R3 Race Block .056in MLS Cylinder Head Gasket - 4.200in Bore - W2 Heads

Cometic Gasket

Cometic Chrysler R3 Race Block .056in MLS Cylinder Head Gasket - 4.200in Bore - W2 Heads

SKU: CGSC5466-056

Head Gaskets

CG Head Gaskets...

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Description

The Cometic MLS gasket is comprised of three to five layers of stainless steel. Cometic uses stainless steel for increased strength, its ability to rebound and resist corrosion. The outer layers of the gasket are embossed and coated on both sides with a Viton rubber material designed to meet the demands of a variety of harsh sealing environments, load conditions and surface finishes. The Viton coating is heat resistant to 250°C or 482°F.

Product Overview

Features and Benefits

Embossed Outer Layers Coated w/Viton

Product Details

Description:	Chrysler R3 Race Block Cylinder Head Gasket
Engine Make/Size:	Chrysler/Dodge R3 Iron NASCARÂ«/Late Model V8 Race Block
Part Number:	cgsC5466-056
Prop 65 (C, R or CR):	CR
Prop 65 - Short Label:	Prop_65.jpg
Prop 65 Warning Label:	Prop_65.jpg
Prop 65 Yes/No:	Yes
Title:	Cometic Gasket Automotive Chrysler R3 Race Block .056 in MLS Cylinder Head Gasket, 4.200 in Bore, W2 Heads
WARNING CA Proposition 65 Message:	The state of California has determined that certain chemicals used in the manufacture of this product have been known to cause cancer and birth defects. For more information; visit www.p65Warnings.ca.gov
WARNING CA Proposition 65:	Yes

Part Type

Engine Cylinder Head Gasket

Data: v4.2 - Upd: 2026-10-14 00:05:05

Features

Conforms load distribution across the sealing area
Embossed Outer Layers Coated w/Viton
Requires less clamp load creating less bore distortion
The center or shim layer is an uncoated stainless steel layer which can be varied to accommodate multiple thickness requirements
The embossed outer layers of the gaskets meet the demands of a variety of harsh sealing environments, load conditions, and surface finishes

Specifications

Product Attributes - Brand: Cometic
Product Attributes - Manufacturer's Part Number: C5466-056
Product Attributes - Part Type: Head Gaskets
Product Attributes - Product Line: Cometic MLS Head Gaskets
Product Attributes - UPC: 00191070128173
Product Attributes - Bore (in.): 4.200 in.
Product Attributes - Bore (mm): 106.680mm
Product Attributes - Gasket Material: Multi-layer stainless steel
Product Attributes - Compressed Thickness (in.): 0.056 in.
Product Attributes - Compressed Volume (cc): 12.714cc
Product Attributes - Lock Wire: No
Product Attributes - Quantity: Sold individually.
Product Attributes - Notes: Designed to fit Mopar Performance R3 and R4 engine blocks using W2 cylinder heads.

Reference Information

Brand Name/s	Cometic Gasket
StreetFX SKU	cgsC5466-056
SFX Item ID	4170472
Supplier Item Code	4170472
Manufacturer SKU	C5466-056
Manufacturer UPC	191070128173
Alternative References	CGT-C5466-056, .056in, 4.200in