Katech Engineering LLC - Performance Intake & Exhaust Valves

Valvetrain Components - Performance Intake & Exhaust Valves

Performance Intake & Exhaust Valves for LS & LT Applications

Intake & Exhaust Valves Designed for Airflow, Thermal Stability, and Valvetrain Control

Intake and exhaust valves regulate cylinder filling and exhaust gas evacuation, directly affecting volumetric efficiency, combustion stability, and overall engine durability.

This category includes precision-engineered valves and related components for GM LS and LT engine platforms. Intake valves are configured to optimize airflow and mass efficiency, while exhaust valves are designed to withstand elevated temperatures and maintain structural integrity under continuous thermal cycling.

Critical parameters such as head diameter, stem size, overall length, tip geometry, and material composition must be matched to the application to maintain correct valvetrain geometry, ensure proper seating, and support stable operation across a wide range of engine speeds and loads.

Key Engineering Considerations

  • Valve head diameter and seat interface for airflow and sealing
  • Stem diameter and material for strength and mass control
  • Overall length and tip configuration for correct geometry
  • Material selection for thermal resistance and durability
  • Compatibility with springs, retainers, guides, and operating conditions

Proper integration of these components is required to maintain valvetrain control and minimize wear in both naturally aspirated and forced induction applications.

 

Browse Performance Intake & Exhaust Valves Products

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Items 1-27 of 27
In Stock
Description: For LS7
Item #: KAT-6412
Condition: New
Price: $224.99
Qty:

In Stock
Description: LS9
Item #: KAT-6427
Condition: New
Price: $224.99
Qty:

In Stock
Description: For LT1/LT2/LT4/LT5
Item #: KAT-7800
Condition: New
Price: $224.99
Qty:

In Stock
Description: For LT4/LT5
Item #: KAT-7486
Condition: New
Price: $224.99
Qty:

In Stock
Description: For LT1 LT2 LT4 LT5 Engines
Item #: KAT-7799-R01
Condition: New
Price: $224.99
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In Stock
Description: GM LT4 & LT5 Titanium Engine Intake Valve
Item #: GMP-12650770
Condition: New
Price: $123.99
Qty:

In Stock
Description: OEM GM LS3 Intake Valve
Item #: GMP-12569427
Condition: New
Price: $59.99
Qty:

Backordered
Description: OEM GM L92 Intake Valve solid stem also fits LS3/LSA/LS9
Item #: GMP-12627970
Condition: New
Price: $26.99
Qty:

In Stock
Description: Ferrea LS7 Hollow Stem Exhaust Valve
Item #: FER-F2042-8
Condition: New
Price: $459.99
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In Stock
Description: OEM GM Inconel LS3 Exhaust Valve
Item #: GMP-12612427
Condition: New
Price: $35.99
Qty:

In Stock
Description: OEM GM Inconel LT1/LT4 Exhaust Valve
Item #: GMP-12733470
Condition: New
Price: $35.99
Qty:

In Stock
Description: OEM GM LS3 Exhaust Valve
Item #: GMP-12582719
Condition: New
Price: $33.99
Qty:

Backordered
Description: OEM GM LS7 Exhaust Valve
Item #: GMP-12618110
Condition: New
Price: $62.99
Qty:

In Stock
Description: OEM LT1 & LT4 Exhaust Valve
Item #: GMP-12678746
Condition: New
Price: $33.99
Qty:

In Stock
Description: LS7, LS9, LT4 & LT5 Intake Valve Rocker Arm Lash Cap Wear Pad Kit
Item #: GMP-19302366
Condition: New
Price: $31.99
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In Stock
Description: SET OF 8 | singles use 12645472
Item #: GMP-12482062
Condition: New
Price: $52.99
Qty:

Backordered
Description: Seal/seat combination style, set of 8 for singles use 12645673
Item #: GMP-12482063
Condition: New
Price: $48.99
Qty:

In Stock
Description: SINGLE SEAL ONLY
Item #: GMP-12457652
Condition: New
Price: $4.99
Qty:

In Stock
Description: Single Seal Only
Item #: GMP-12533586
Condition: New
Price: $4.99
Qty:

Backordered
Description: Sold in halves. 32 required per engine
Item #: GMP-10166345
Condition: New
Price: $3.99
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In Stock
Description: For Hemi Heads
Item #: KAT-7834
Condition: New
Price: $13.99
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In Stock
Description: For all LS heads
Item #: KAT-7831
Condition: New
Price: $14.99
Qty:

In Stock
Description: For LS7 Engines
Item #: KAT-6586-R01
Condition: New
Price: $224.99
Qty:

In Stock
Description: For LT1 & LS Heads
Item #: KAT-7832
Condition: New
Price: $13.99
Qty:

In Stock
Description: For LT4 heads
Item #: KAT-7833
Condition: New
Price: $13.99
Qty:

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

In Stock
Description: 1.550" diameter
Item #: EP-01-2204-8
Condition: New
Price: $21.99
Qty:

Items 1-27 of 27

More About Performance Intake & Exhaust Valves

Why Katech 

Since 1977, Katech Engineering has applied a system-based approach to engine and valvetrain development. Intake and exhaust valve performance is evaluated alongside spring dynamics, guide clearance, and operating conditions to ensure proper function under load.

This methodology is based on real-world engine programs where durability, precision, and repeatability are critical, resulting in consistent performance across high-demand street and racing applications.