What is the purpose of the HP shim technology in this gasket?

The HP shim technology increases the clamping force around the combustion chamber. This helps to create a stronger seal, especially important for open deck blocks, and improves overall sealability.

What does the Viton coating do for this head gasket?

The Viton coating on both sides of the gasket provides excellent resistance to high temperatures and aggressive engine fluids. This enhances the gasket's ability to maintain a reliable seal under demanding conditions.

Is this gasket suitable for all Chrysler 440 engines?

This gasket is specifically designed for Chrysler 440 RB engines with Siamese bores and a 4.550 inch bore diameter. It's crucial to verify your engine's bore size and configuration to ensure proper fitment.

1 / 2

Specifications

Brand: Cometic Gasket
Part #: C15530-051
UPC: 191070522148

Cometic Chrysler 440 RB .051in MLS Cylinder Head Gasket - 4.550in Bore - Siamese Bores

Name: Cometic Chrysler 440 RB .051in MLS Cylinder Head Gasket - 4.550in Bore - Siamese Bores
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-chrysler-440-rb-051in-mls-cylinder-head-gasket-4-550in-bo-t14-805507
Price: 111.49 USD
Availability: BackOrder

$111.49

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Cometic Chrysler 440 RB .051in MLS Head Gasket. Features HP shim technology for improved sealing on open deck blocks.

Key Features

Fits a wide range of Chrysler, Dodge, and Plymouth vehicles from the 1960s and 1970s.
Multi-Layer Steel (MLS) construction for durability.
Features HP shim technology to increase clampload around the combustion chamber for improved sealing.
Designed for Siamese bores with a 4.550 inch bore diameter.
Coated on both sides with Viton for enhanced sealing and resistance to heat and fluids.
Gasket thickness is .051 inches.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

Secure CheckoutFast Shipping631-982-0042

Will it fit your car?

About this part

Product Details

This Cometic Multi-Layer Steel (MLS) head gasket is built with a .051 inch thickness and a 4.550 inch bore, specifically designed for Siamese bores common in Chrysler 440 RB engines. The advanced HP shim technology integrated into this gasket is key; it works by increasing the clamping force around the combustion chamber. This is particularly beneficial for open deck block designs, helping to ensure a more robust seal and prevent leaks under pressure.

The gasket is coated on both sides with Viton, a high-performance fluoroelastomer known for its resistance to heat and aggressive fluids. This coating adds another layer of protection and sealing capability, making it a solid choice for rebuilding or repairing your engine. It’s designed to handle the demands of these classic Mopar V8s, fitting a wide range of vehicles including Chrysler 300s, Dodge Chargers, and Plymouth Barracudas from the late 60s and 70s.