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Katech Engineering LLC - Performance GM Cylinder Heads, Components & CNC Porting
Performance GM Cylinder Heads, Components & CNC Porting
Cylinder heads play a critical role in how a GM engine produces power. By controlling airflow and combustion, they directly affect performance, efficiency, and reliability. Whether upgrading or rebuilding, selecting the right cylinder head components and services is essential to achieving consistent results.
This category includes complete GM cylinder heads, valvetrain components, and CNC porting and machining services for LS, LT, and other GM performance engines. Each solution is developed to support increased airflow, stable valvetrain operation, and durability under demanding conditions.
- Supports improved airflow and combustion efficiency
- Maintains valvetrain stability at higher RPM
- CNC-machined for consistent fitment and repeatability
- Suitable for performance street and competition engines
- Designed for GM LS, LT, and other performance platforms
Katech offers complete cylinder head assemblies as well as individual components including valves, springs, retainers, guides, seals, and related hardware. CNC porting and machining services refine airflow characteristics while maintaining proper head structure and long-term reliability through controlled machining processes.
All development, machining, and validation is performed in-house at Katech’s Clinton Township, Michigan facility using the same processes applied to professional motorsports programs.
Browse Performance GM Cylinder Heads, Components & CNC Porting Products
Items 1-60 of 106
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Backordered
Description: For GM LT1 & L86 Gen 5 Engines
Item #: KAT-A7809
Condition:
New
Price: $5,249.99
In Stock
Description: CNC ported LT1 heads set up for .660 lift cam, sold in Pairs
Item #: KAT-A7674
Condition:
New
Price: $2,179.99
In Stock
Description: Pair
Item #: KAT-A6969-B
Condition:
New
Price: $4,720.99
Backordered
Description: Pair
Item #: KAT-A6969
Condition:
New
Price: $4,325.99
Backordered
Description: Pair
Item #: KAT-A7748
Condition:
New
Price: $5,459.99
Backordered
Description: Pair
Item #: KAT-A7686
Condition:
New
Price: $5,144.99
Backordered
Description: CNC Porting Service, Valve Job, Hand-blending, Big Valves, Assembled with .660 dual springs
Item #: KAT-A7230C
Condition:
New
Price: $1,784.99
In Stock
Description: CNC Porting Service
Item #: KAT-A7266C
Condition:
New
Price: $1,784.99
Description: Your Heads fully assembled set up for Katech LT4 Cams plus CNC Porting & Guide Repair Service..
Item #: KAT-A7608
Condition:
New
Price: $5,280.99
Description: CNC Porting & Repair Service with Bronze guides, Ti/Mo Intake/Super Alloy Exhaust Valves..
Item #: KAT-A7606
Condition:
New
Price: $4,269.99
In Stock
Description: CNC Porting Bundle LT1/L86 Heads
Item #: KAT-A7783
Condition:
New
Price: $1,235.99
Sale: $1,099.99
Save: 11%
Save: $136.00
In Stock
Description: CNC Porting Bundle LT4/LT5 Heads
Item #: KAT-A7784
Condition:
New
Price: $1,235.99
Sale: $1,099.99
Save: 11%
Save: $136.00
In Stock
Description: CNC Chamber Porting Service, Valve Job, Hand-blending
Item #: KAT-A7416
Condition:
New
Price: $1,180.99
In Stock
Description: CNC Porting Service, Valve Job, Hand-blending, New Valve
Item #: KAT-A7229
Condition:
New
Price: $1,364.99
In Stock
Description: CNC Porting Service, Valve Job, Hand-blending, Big Valves
Item #: KAT-A7230
Condition:
New
Price: $1,364.99
In Stock
Description: CNC Porting Service
Item #: KAT-A7266
Condition:
New
Price: $1,123.99
Sale: $999.99
Save: 11%
Save: $124.00
In Stock
Description: CNC Porting Service
Item #: KAT-A7413
Condition:
New
Price: $1,180.99
Sale: $999.99
Save: 15%
Save: $181.00
In Stock
Description: CNC Porting Service
Item #: KAT-A7302
Condition:
New
Price: $1,123.99
Sale: $999.99
Save: 11%
Save: $124.00
In Stock
Description: CNC Porting Service with Bronze guides, Ti/Mo Intake Valves, Inspect/Advise Exhaust
Item #: KAT-A7269
Condition:
New
Price: $3,370.99
In Stock
Description: CNC Porting Service with Bronze guides, Ti/Mo Intake/Exhaust Valves
Item #: KAT-A7232
Condition:
New
Price: $5,055.99
In Stock
Description: CNC ported LT1 & LT2 heads set up for .660 lift cam, sold in Pairs
Item #: KAT-A7840
Condition:
New
Price: $2,179.99
In Stock
Description: CNC Porting Service
Item #: KAT-M6753-LT1
Condition:
New
Price: $561.99
Sale: $499.99
Save: 11%
Save: $62.00
In Stock
Description: CNC Porting Service
Item #: KAT-M6753-LT4
Condition:
New
Price: $561.99
Sale: $499.99
Save: 11%
Save: $62.00
In Stock
Description: CNC Porting Service
Item #: KAT-M4321
Condition:
New
Price: $561.99
Sale: $499.99
Save: 11%
Save: $62.00
In Stock
Description: CNC Porting Service
Item #: KAT-M7107
Condition:
New
Price: $561.99
Sale: $499.99
Save: 11%
Save: $62.00
In Stock
Description: CNC Porting Service
Item #: KAT-M3835
Condition:
New
Price: $561.99
Sale: $499.99
Save: 11%
Save: $62.00
In Stock
Description: CNC Porting Service
Item #: KAT-M7028
Condition:
New
Price: $561.99
Sale: $499.99
Save: 11%
Save: $62.00
In Stock
Description: CNC Porting Service
Item #: KAT-M7412
Condition:
New
Price: $561.99
Sale: $499.99
Save: 11%
Save: $62.00
In Stock
Description: CNC Porting Service
Item #: KAT-M6897
Condition:
New
Price: $599.99
In Stock
Description: CNC Porting Service
Item #: KAT-M7090
Condition:
New
Price: $561.99
Sale: $499.99
Save: 11%
Save: $62.00
In Stock
Description: LS7 Cylinder Head Repair-Only Bundle , Ti/Mo Intake Valves, Inspect/Advise Exhaust
Item #: KAT-A7270
Condition:
New
Price: $2,977.99
In Stock
Description: CNC Chamber Porting Service
Item #: KAT-M7111
Condition:
New
Price: $136.99
In Stock
Description: Katech CNC Machining Service
Item #: KAT-M7110
Condition:
New
Price: $143.99
Sale: $129.59
Save: 10%
Save: $14.40
In Stock
Description: CNC Chamber Porting Service
Item #: KAT-M4470-R01
Condition:
New
Price: $136.99
Sale: $123.29
Save: 10%
Save: $13.70
In Stock
Description: CNC Chamber Porting Service
Item #: KAT-M7112
Condition:
New
Price: $136.99
Sale: $123.29
Save: 10%
Save: $13.70
In Stock
Description: Katech CNC Machine Service
Item #: KAT-7742-R01
Condition:
New
Price: $209.99
Description: One-time fee to program and proof a new logo for engraving
Item #: /S-ENGRAVINGSETUP
Condition:
New
Price: $177.99
Description: One-time fee to set up a new logo for laser etching
Item #: /S-LASERETCHSETUP
Condition:
New
Price: $59.99
Description: For Gen 5 LT cylinder heads only
Item #: /S-CUSTOMENGRAVE-CYLHD
Condition:
New
Price: $0.99
Description: Cylinder head deburring service to restore your cylinder heads
Item #: /S-HEADDEBURR
Condition:
New
Price: $161.99
Price: $69.99
Description: Precision Bronze Valve Guide Installation for Performance Cylinder Heads
Item #: /S-BRONZEGUIDES
Condition:
New
Price: $311.99
In Stock
Description: Katech CNC Machine Service
Item #: KAT-M7115
Condition:
New
Price: $209.99
Sale: $188.99
Save: 10%
Save: $21.00
Description: Service
Item #: /S-ASSEMBLE-CYL-CLS
Condition:
New
Price: $177.99
Description: Katech Service
Item #: /S-ASSEMBLE-CYL-CLT1
Condition:
New
Price: $177.99
Description: Katech Service
Item #: /S-ASSEMBLE-CYL-CLT4
Condition:
New
Price: $177.99
Description: Competition valve job
Item #: /S-VALVEJOB
Condition:
New
Price: $427.99
Description: Precision Laser Etching for Gen 3–4 LS Cylinder Heads
Item #: /S-CUSTOMLASER-CYLHD
Condition:
New
Price: $0.99
Price: $139.99
Description: Highly recommended when a competition valve job is added to our CNC porting
Item #: /S-HANDBLEND
Condition:
New
Price: $161.99
Description: Recondition Valves
Item #: /S-RECONDITIONVALVES
Condition:
New
Price: $142.99
In Stock
Description: For all LS heads
Item #: KAT-7831
Condition:
New
Price: $14.99
In Stock
Description: For LT1 & LS Heads
Item #: KAT-7832
Condition:
New
Price: $13.99
Items 1-60 of 106
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More About Performance GM Cylinder Heads, Components & CNC Porting
Why Choose Katech
Since 1977, Katech has built its reputation through professional motorsports and GM performance engine development. That experience is applied directly to every cylinder head, component, and machining service.
- Designed, machined, and validated in-house
- Developed through professional motorsports programs
- Proven through dyno testing and real-world performance
- Built to maintain durability under load and elevated engine speeds
From street builds to professional racing applications, Katech GM cylinder head solutions support consistent airflow, stable operation, and reliable performance.