Katech Engineering LLC - Gaskets & Sealing Components

Engine Components  - Gaskets & Sealing Components

High-Performance Engine Gaskets & Sealing Components

This category includes sealing components engineered to maintain fluid containment, pressure integrity, and combustion sealing across high-performance engine systems. Applications include cylinder heads, front and rear covers, intake and exhaust interfaces, and valvetrain-related sealing surfaces. These components are critical to preventing oil, coolant, and combustion gas leakage under elevated temperature, pressure, and dynamic loading conditions.

Gaskets and seals are selected based on material composition, surface compatibility, and operating environment. Multi-layer steel (MLS), elastomer-coated, and composite gasket constructions are utilized where appropriate to accommodate thermal expansion and maintain sealing across specified surface finish requirements and clamp load conditions. Seal materials, including high-temperature elastomers such as FKM where required, are chosen for resistance to heat, chemical exposure, and long-term degradation.

Sealing performance is dependent on surface finish, fastener preload, and component alignment. Head gasket selection must account for bore diameter, compressed thickness, and cylinder pressure targets. Radial sealing elements, including crankshaft and front cover seals, are designed to maintain dynamic sealing integrity at rotating interfaces under thermal variation and continuous oil exposure.

These components are intended for use in LS- and LT-based engines and similar high-performance platforms where sealing reliability directly impacts efficiency, durability, and service life. Whether used in new engine assembly or service applications, gasket and sealing solutions must be matched to the mechanical and thermal demands of the system.

Browse Gaskets & Sealing Components Products

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Items 1-22 of 22
In Stock
Description: Gen 5 LT4
Item #: GMP-12654622
Condition: New
Price: $91.99
Qty:

In Stock
Description: GM Genuine Parts Gen 5 LT1 & LT2 Cylinder Head Gasket
Item #: GMP-12688943
Condition: New
Price: $83.99
Qty:

In Stock
Description: OEM LS7 Cylinder Head Gasket
Item #: GMP-12582179
Condition: New
Price: $75.99
Qty:

In Stock
Description: OEM LS9 Cylinder Head Gasket
Item #: GMP-12622033
Condition: New
Price: $87.99
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In Stock
Description: OEM LS2 & LS6 Cylinder Head Gasket
Item #: GMP-12589227
Condition: New
Price: $73.99
Qty:

Backordered
Description: LS1 & LS6 Cylinder Head Gasket
Item #: GMP-12589226
Condition: New
Price: $59.99
Qty:

In Stock
Description: OEM LS3 cylinder head gasket
Item #: GMP-12610046
Condition: New
Price: $102.99
Qty:

In Stock
Description: OEM GM Genuine Parts LT Exhaust Manifold Gasket
Item #: GMP-12657093
Condition: New
Price: $20.99
Qty:

In Stock
Description: LS Header Exhaust Manifold Gasket | DOES NOT FIT LS7
Item #: GMP-12617944
Condition: New
Price: $22.99
Qty:

In Stock
Description: LS7 D Port Exhaust Manifold Gasket
Item #: GMP-12594171
Condition: New
Price: $54.99
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In Stock
Description: For Gen 3/4 engines
Item #: GMP-12589016
Condition: New
Price: $30.99
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In Stock
Item #: GMP-12735382
Condition: New
Price: $39.99
Qty:

Backordered
Description: Timing Cover Seal, Chevy, Small Block LS
Item #: GMP-12585673
Condition: New
Price: $30.99
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In Stock
Description: GM Genuine Parts Gen V Front Crankshaft Engine Oil Seal
Item #: GMP-12634614
Condition: New
Price: $11.99
Qty:

In Stock
Item #: GMP-12639249
Condition: New
Price: $31.99
Qty:

In Stock
Description: For Gen 3/4 engines
Item #: GMP-89060436
Condition: New
Price: $31.99
Qty:

Backordered
Description: For Gen 3/4 engines
Item #: GMP-12639250
Condition: New
Price: $73.99
Qty:

In Stock
Description: OEM GM Valley cover gasket
Item #: GMP-12610141
Condition: New
Price: $52.99
Qty:

In Stock
Description: For LS Cast Aluminum Valve Cover
Item #: GMP-12637683
Condition: New
Price: $29.99
Qty:

Backordered
Description: For LT Cast Aluminum Valve Cover
Item #: GMP-12619787
Condition: New
Price: $10.99
Qty:

In Stock
Description: For LS Engines 2004-2008
Item #: GMP-12570307
Condition: New
Price: $8.99
Qty:

In Stock
Description: Valve Seal
Item #: KAT-7481
Condition: New
Price: $2.99
Qty:

Items 1-22 of 22

More About Gaskets & Sealing Components

Why Choose Katech

Katech gasket and sealing solutions are selected and validated through extensive experience in high-performance engine development and in-house assembly operations. This experience directly informs gasket material selection, surface finish requirements, fastener preload considerations, and sealing interface preparation across a wide range of engine configurations.

Sealing components are evaluated based on their ability to maintain integrity under elevated cylinder pressure, thermal cycling, and sustained engine operation. Particular attention is given to head gasket compatibility with deck surface finish, as well as seal performance at dynamic interfaces such as crankshaft and valvetrain-related locations.

Whether supporting a performance street engine or a dedicated competition build, Katech sealing components are chosen to ensure consistent sealing performance, minimize leakage risk, and maintain system stability under demanding operating conditions.