Katech Engineering LLC - CNC Cylinder Head Porting & Machining Services

GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services

Performance Cylinder Head CNC Porting for GM LS and LT Engines

Katech CNC Porting and Machining Services apply decades of race-proven airflow development and precision machining to GM LS and LT cylinder heads. Using advanced CNC equipment and digitally developed port programs, Katech engineers refine intake and exhaust port geometry to improve airflow efficiency, combustion stability, and overall engine performance while maintaining proper cylinder head architecture and reliability.

Developed through extensive dyno testing and professional motorsports experience, Katech porting programs deliver consistent and repeatable airflow across every cylinder head. These services support performance street engines, track builds, and professional racing applications where precise airflow control and machining accuracy are essential to achieving maximum horsepower and durability.

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Items 1-41 of 41
GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech Bronze Valve Guide Installation Service (PAIR)
Katech Bronze Valve Guide Installation Service (PAIR)
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Description: Precision Bronze Valve Guide Installation for Performance Cylinder Heads
Item #: /S-BRONZEGUIDES
Condition: New
Price: $311.99
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GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech Competition Valve Job & Cylinder Head Deburr Service (PAIR)
Katech Competition Valve Job & Cylinder Head Deburr Service (PAIR)
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Description: Competition valve job
Item #: /S-VALVEJOB
Condition: New
Price: $427.99
Qty:

GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech Competition Valve Job & Cylinder Head Deburr Service (PAIR)
Katech Competition Valve Job & Cylinder Head Deburr Service (PAIR)
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Description: Cylinder head deburring service to restore your cylinder heads
Item #: /S-HEADDEBURR
Condition: New
Price: $161.99
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GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech Custom LT Cylinder Heads Logo Engraving (PAIR)
Katech Custom LT Cylinder Heads Logo Engraving (PAIR)
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Description: For Gen 5 LT cylinder heads only
Item #: /S-CUSTOMENGRAVE-CYLHD
Condition: New
Price: $0.99
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GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech Cylinder Head .005" Decking Service (PAIR)
Katech Cylinder Head .005" Decking Service (PAIR)
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Item #: /S-DECKHEADS.005
Condition: New
Price: $177.99
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GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech Cylinder Head .010" Decking Service (PAIR)
Katech Cylinder Head .010" Decking Service (PAIR)
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Item #: /S-DECKHEADS.010
Condition: New
Price: $177.99
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GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech Cylinder Head .015" Decking Service (PAIR)
Katech Cylinder Head .015" Decking Service (PAIR)
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Item #: /S-DECKHEADS.015
Condition: New
Price: $177.99
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GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech Cylinder Head .020" Decking Service (PAIR)
Katech Cylinder Head .020" Decking Service (PAIR)
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Item #: /S-DECKHEADS.030
Condition: New
Price: $177.99
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GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech Cylinder Head .020" Decking Service (PAIR)
Katech Cylinder Head .020" Decking Service (PAIR)
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Item #: /S-DECKHEADS.020
Condition: New
Price: $177.99
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GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech Gen 5 LT1/L86/L8T CNC Cylinder Head Porting Service (PAIR)
Katech Gen 5 LT1/L86/L8T CNC Cylinder Head Porting Service (PAIR)
In Stock
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Description: CNC Porting Service
Item #: KAT-M6753-LT1
Condition: New
Price: $499.99
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GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech Gen 5 LT1/L86/L8T CNC Cylinder Head Porting Service (PAIR)
Katech Gen 5 LT1/L86/L8T CNC Cylinder Head Porting Service (PAIR)
In Stock
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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
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GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech Gen 5 LT4 CNC Ported & Assembled Cylinder Heads with Guide Repair (PAIR)
Katech Gen 5 LT4 CNC Ported & Assembled Cylinder Heads with Guide Repair (PAIR)
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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
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GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech Gen 5 LT4/LT5 CNC Cylinder Head Porting Service (PAIR)
Katech Gen 5 LT4/LT5 CNC Cylinder Head Porting Service (PAIR)
In Stock
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Description: CNC Porting Bundle LT4/LT5  Heads
Item #: KAT-A7784
Condition: New
Price: $1,235.99
Qty:

GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech Gen 5 LT4/LT5 CNC Cylinder Head Porting Service (PAIR)
Katech Gen 5 LT4/LT5 CNC Cylinder Head Porting Service (PAIR)
In Stock
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Description: CNC Porting Service
Item #: KAT-M6753-LT4
Condition: New
Price: $499.99
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GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech Gen V LT4 CNC Ported Cylinder Heads with Guide Repair (PAIR)
Katech Gen V LT4 CNC Ported Cylinder Heads with Guide Repair (PAIR)
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Description: CNC Porting & Repair Service with Bronze guides, Ti/Mo Intake/Super Alloy Exhaust Valves..
Item #: KAT-A7606
Condition: New
Price: $4,269.99
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GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech L83 CNC Cylinder Head Porting Service (PAIR)
Katech L83 CNC Cylinder Head Porting Service (PAIR)
In Stock
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Description: CNC Chamber Porting Service, Valve Job, Hand-blending
Item #: KAT-A7416
Condition: New
Price: $1,180.99
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GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech Labor Service – Half Hour
Katech Labor Service – Half Hour
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Item #: /TECHNICIAN.5
Condition: New
Price: $80.99
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GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech LS 243/799 Combustion Chamber CNC Porting Service (PAIR
Katech LS 243/799 Combustion Chamber CNC Porting Service (PAIR
In Stock
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Description: CNC Chamber Porting Service
Item #: KAT-M4470-R01
Condition: New
Price: $123.29
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GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech LS Cylinder Head Custom Laser Engraving Service (PAIR)
Katech LS Cylinder Head Custom Laser Engraving Service (PAIR)
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Description: Precision Laser Etching for Gen 3–4 LS Cylinder Heads
Item #: /S-CUSTOMLASER-CYLHD
Condition: New
Price: $0.99
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GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech LS1 Truck 241/806/853 CNC Cylinder Head Porting Service (PAIR)
Katech LS1 Truck 241/806/853 CNC Cylinder Head Porting Service (PAIR)
In Stock
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Description: CNC Porting Service
Item #: KAT-M4321
Condition: New
Price: $499.99
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GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech LS1 Truck 241/806/853 CNC Cylinder Head Porting Service with NEW 2.00"/1.55" Valves (PAIR)
Katech LS1 Truck 241/806/853 CNC Cylinder Head Porting Service with NEW 2.00"/1.55" Valves (PAIR)
In Stock
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Description: CNC Porting Service, Valve Job, Hand-blending, New Valve
Item #: KAT-A7229
Condition: New
Price: $1,364.99
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GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech LS1 Truck 862/706 CNC Cylinder Head Porting Service (PAIR)
Katech LS1 Truck 862/706 CNC Cylinder Head Porting Service (PAIR)
In Stock
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Description: CNC Porting Service
Item #: KAT-M7107
Condition: New
Price: $499.99
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GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech LS1 Truck 862/706 CNC Cylinder Head Porting Service with 2.00"/1.55" Valves (PAIR)
Katech LS1 Truck 862/706 CNC Cylinder Head Porting Service with 2.00"/1.55" Valves (PAIR)
In Stock
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Description: CNC Porting Service, Valve Job, Hand-blending, Big Valves
Item #: KAT-A7230
Condition: New
Price: $1,364.99
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GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech LS1 Truck 862/706 CNC Ported & Assembled Cylinder Heads with 2.00"/1.55" Valves (PAIR)
Katech LS1 Truck 862/706 CNC Ported & Assembled Cylinder Heads with 2.00"/1.55" Valves (PAIR)
Backordered
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Description: CNC Porting Service, Valve Job, Hand-blending, Big Valves, Assembled with .660 dual springs
Item #: KAT-A7230C
Condition: New
Price: $1,784.99
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GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech LS2/LS6 Truck 243/799/317/035 CNC Cylinder Head Porting Service (PAIR)
Katech LS2/LS6 Truck 243/799/317/035 CNC Cylinder Head Porting Service (PAIR)
In Stock
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Description: CNC Porting Service
Item #: KAT-M3835
Condition: New
Price: $499.99
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GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech LS2/LS6 Truck 243/799/317/035 CNC Cylinder Head Porting Service (PAIR)
Katech LS2/LS6 Truck 243/799/317/035 CNC Cylinder Head Porting Service (PAIR)
In Stock
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Description: CNC Porting Service
Item #: KAT-A7266
Condition: New
Price: $1,123.99
Sale: $999.99
Save: 11%
Save: $124.00
Qty:

GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech LS2/LS6 Truck 243/799/317/035 CNC Ported & Assembled Cylinder Heads with 2.00"/1.57" Valves (PAIR)
Katech LS2/LS6 Truck 243/799/317/035 CNC Ported & Assembled Cylinder Heads with 2.00"/1.57" Valves (PAIR)
In Stock
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Description: CNC Porting Service
Item #: KAT-A7266C
Condition: New
Price: $1,784.99
Qty:

GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech LS3 Combustion Chamber CNC Porting Service (PAIR)
Katech LS3 Combustion Chamber CNC Porting Service (PAIR)
In Stock
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Description: CNC Chamber Porting Service
Item #: KAT-M7112
Condition: New
Price: $123.29
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GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech LS3/L92/L99/L76 364/5364 CNC Cylinder Head Porting Service (PAIR)
Katech LS3/L92/L99/L76 364/5364 CNC Cylinder Head Porting Service (PAIR)
In Stock
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Description: CNC Porting Service
Item #: KAT-M7412
Condition: New
Price: $499.99
Qty:

GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech LS3/L92/L99/L76 364/5364 CNC Cylinder Head Porting Service (PAIR)
Katech LS3/L92/L99/L76 364/5364 CNC Cylinder Head Porting Service (PAIR)
In Stock
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Description: CNC Porting Service
Item #: KAT-A7413
Condition: New
Price: $1,180.99
Sale: $999.99
Save: 15%
Save: $181.00
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GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech LS3/L92/L99/L76 821/823/716 CNC Cylinder Head Porting Service (PAIR)
Katech LS3/L92/L99/L76 821/823/716 CNC Cylinder Head Porting Service (PAIR)
In Stock
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Description: CNC Porting Service
Item #: KAT-M7028
Condition: New
Price: $499.99
Qty:

GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech LS3/L92/L99/L76 821/823/716 CNC Cylinder Head Porting Service (PAIR)
Katech LS3/L92/L99/L76 821/823/716 CNC Cylinder Head Porting Service (PAIR)
In Stock
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Description: CNC Porting Service
Item #: KAT-A7302
Condition: New
Price: $1,123.99
Sale: $999.99
Save: 11%
Save: $124.00
Qty:

GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech LS7 8452 & LSX LS7 CNC Cylinder Head Porting Service (PAIR)
Katech LS7 8452 & LSX LS7 CNC Cylinder Head Porting Service (PAIR)
In Stock
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Description: CNC Porting Service
Item #: KAT-M6897
Condition: New
Price: $599.99
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GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech LS7 8452 & LSX-LS7 CNC Cylinder Head Porting Service with Bronze Guides & Intake Valves (PAIR)
Katech LS7 8452 & LSX-LS7 CNC Cylinder Head Porting Service with Bronze Guides & Intake Valves (PAIR)
In Stock
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Description: CNC Porting Service with Bronze guides, Ti/Mo Intake/Exhaust Valves
Item #: KAT-A7232
Condition: New
Price: $5,055.99
Qty:

GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech LS7 8452 & LSX-LS7 CNC Cylinder Head Porting Service with Bronze Guides & Intake Valves (PAIR)
Katech LS7 8452 & LSX-LS7 CNC Cylinder Head Porting Service with Bronze Guides & Intake Valves (PAIR)
In Stock
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Description: CNC Porting Service with Bronze guides, Ti/Mo Intake Valves, Inspect/Advise Exhaust
Item #: KAT-A7269
Condition: New
Price: $3,370.99
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GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech LS7/LSX-LS7 Cylinder Head Combustion Chamber CNC Porting Service (PAIR)
Katech LS7/LSX-LS7 Cylinder Head Combustion Chamber CNC Porting Service (PAIR)
In Stock
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Description: CNC Chamber Porting Service
Item #: KAT-M7111
Condition: New
Price: $136.99
Qty:

GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech LSA/LS9 4863/863/1771 CNC Cylinder Head Porting Service (PAIR)
Katech LSA/LS9 4863/863/1771 CNC Cylinder Head Porting Service (PAIR)
In Stock
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Description: CNC Porting Service
Item #: KAT-M7090
Condition: New
Price: $499.99
Qty:

GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech LT1/L83/L86 Cylinder Head CNC Machining Service for LT4 Supercharger Bolt Holes (PAIR)
Katech LT1/L83/L86 Cylinder Head CNC Machining Service for LT4 Supercharger Bolt Holes (PAIR)
In Stock
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Description: Katech CNC Machine Service
Item #: KAT-M7115
Condition: New
Price: $209.99
Sale: $188.99
Save: 10%
Save: $21.00
Qty:

GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech LT1/LT4/LT5/L83/L86 Cylinder Head DI Delete CNC Machining Service (PAIR)
Katech LT1/LT4/LT5/L83/L86 Cylinder Head DI Delete CNC Machining Service (PAIR)
In Stock
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Description: Katech CNC Machine Service
Item #: KAT-7742-R01
Condition: New
Price: $209.99
Qty:

GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech LT4/LT5 Combustion Chamber CNC Porting Service (PAIR)
Katech LT4/LT5 Combustion Chamber CNC Porting Service (PAIR)
In Stock
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Description: Katech CNC Machining Service
Item #: KAT-M7110
Condition: New
Price: $129.59
Qty:

GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech Valve Reconditioning Service
Katech Valve Reconditioning Service
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Description: Recondition Valves
Item #: /S-RECONDITIONVALVES
Condition: New
Price: $142.99
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Items 1-41 of 41

More About CNC Cylinder Head Porting & Machining Services

Why Choose Katech

Since 1977, Katech Engineering has built a global reputation for precision engine development and championship-winning performance. Katech played a key role in the success of GM Corvette Racing, helping develop race engines that competed at the highest levels of endurance motorsports.

Today, that same engineering discipline is applied to every machining service we perform. All CNC porting and precision machining services are completed in-house at Katech Engineering’s advanced manufacturing facility in Clinton Township, Michigan, where our team uses modern CNC equipment and race-developed machining processes to deliver the airflow precision trusted by professional racing teams and performance enthusiasts worldwide.