Katech Engineering LLC - 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 - CNC Machine DI Delete Into LT1, LT4, LT5, L83 & L86 Heads Service
CNC Machine DI Delete Into LT1, LT4, LT5, L83 & L86 Heads Service
In Stock
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Description: Katech CNC Machine Service
Item #: KAT-7742-R01
Condition: New
Price: $209.99
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GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Custom LT Cylinder Heads Logo Engraving
Custom LT Cylinder Heads Logo Engraving
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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 - Cylinder Head Deburr Service
Cylinder Head Deburr Service
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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 - Deck Cylinder Heads - Amount To Deck: .005"
Deck Cylinder Heads - Amount To Deck: .005"
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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 - Deck Cylinder Heads - Amount To Deck: .010"
Deck Cylinder Heads - Amount To Deck: .010"
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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 - Deck Cylinder Heads - Amount To Deck: .015"
Deck Cylinder Heads - Amount To Deck: .015"
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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 - Deck Cylinder Heads - Amount To Deck: .020"
Deck Cylinder Heads - Amount To Deck: .020"
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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 - Deck Cylinder Heads - Amount To Deck: .030"
Deck Cylinder Heads - Amount To Deck: .030"
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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 LS7 or LSX-LS7 Combustion Chamber CNC Porting Service
Katech LS7 or LSX-LS7 Combustion Chamber CNC Porting Service
In Stock
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Description: CNC Chamber Porting Service
Item #: KAT-M7111
Condition: New
Price: $136.99
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GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech ASSEMBLED CNC Porting Bundle LS1/Truck 862, 706 Cylinder Heads (PAIR) With NEW 2.00"/1.55" Valves
Katech ASSEMBLED CNC Porting Bundle LS1/Truck 862, 706 Cylinder Heads (PAIR) With NEW 2.00"/1.55" Valves
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 ASSEMBLED CNC Porting Bundle LS2/LS6/Truck 243, 799, 317, 035 Cylinder Heads (PAIR)
Katech ASSEMBLED CNC Porting Bundle LS2/LS6/Truck 243, 799, 317, 035 Cylinder Heads (PAIR)
In Stock
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Description: CNC Porting Service
Item #: KAT-A7266C
Condition: New
Price: $1,784.99
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GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech Bronze Valve Guide Installation Service
Katech Bronze Valve Guide Installation Service
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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 CNC Machining LT4 Supercharger Bolt Holes Into LT1, L83 & L86 Heads Service
Katech CNC Machining LT4 Supercharger Bolt Holes Into LT1, L83 & L86 Heads Service
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
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GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech CNC Ported & Assembled & Guide Repair Bundle Gen5 LT4 Cylinder Heads (PAIR)
Katech CNC Ported & Assembled & Guide Repair Bundle Gen5 LT4 Cylinder Heads (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 CNC Porting & Guide Repair Bundle Gen 5 LT4 Cylinder Heads (PAIR)
Katech CNC Porting & Guide Repair Bundle Gen 5 LT4 Cylinder Heads (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 CNC Porting Bundle Gen 5 LT1, L86 & L8T Cylinder Heads (PAIR)
Katech CNC Porting Bundle Gen 5 LT1, L86 & L8T Cylinder Heads (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 CNC Porting Bundle Gen 5 LT4 & LT5 Cylinder Heads (PAIR)
Katech CNC Porting Bundle Gen 5 LT4 & LT5 Cylinder Heads (PAIR)
In Stock
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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
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GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech CNC Porting Bundle L83 Cylinder Heads (PAIR)
Katech CNC Porting Bundle L83 Cylinder Heads (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 CNC Porting Bundle LS1 Truck 241, 806, 853 Cylinder Heads (PAIR) With NEW 2.00"/1.55" Valves
Katech CNC Porting Bundle LS1 Truck 241, 806, 853 Cylinder Heads (PAIR) With NEW 2.00"/1.55" Valves
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
Qty:

GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech CNC Porting Bundle LS1/Truck 862, 706 Cylinder Heads (PAIR) With 2.00"/1.55" Valves
Katech CNC Porting Bundle LS1/Truck 862, 706 Cylinder Heads (PAIR) With 2.00"/1.55" Valves
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 CNC Porting Bundle LS2 & LS6 Truck 243, 799, 317, 035 Cylinder Heads (PAIR)
Katech CNC Porting Bundle LS2 & LS6 Truck 243, 799, 317, 035 Cylinder Heads (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
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GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech CNC Porting Bundle LS3, L92, L99 & L76 364, 5364 Cylinder Heads (PAIR)
Katech CNC Porting Bundle LS3, L92, L99 & L76 364, 5364 Cylinder Heads (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
Qty:

GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech CNC Porting Bundle LS3, L92, L99 & L76 821, 823, 716 Cylinder Heads (PAIR)
Katech CNC Porting Bundle LS3, L92, L99 & L76 821, 823, 716 Cylinder Heads (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 CNC Porting Bundle LS7 8452 Or LSX LS7 Cylinder Heads (PAIR) With Bronze Guides, Intake Valves
Katech CNC Porting Bundle LS7 8452 Or LSX LS7 Cylinder Heads (PAIR) With Bronze Guides, Intake Valves
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
Qty:

GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech CNC Porting Bundle LS7 8452 Or LSX-LS7 Cylinder Heads (PAIR) With Bronze Guides, Valves
Katech CNC Porting Bundle LS7 8452 Or LSX-LS7 Cylinder Heads (PAIR) With Bronze Guides, Valves
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 CNC Porting Gen 5 LT1, L86 & L8T Cylinder Heads (PAIR)
Katech CNC Porting Gen 5 LT1, L86 & L8T Cylinder Heads (PAIR)
In Stock
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Description: CNC Porting Service
Item #: KAT-M6753-LT1
Condition: New
Price: $561.99
Sale: $499.99
Save: 11%
Save: $62.00
Qty:

GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech CNC Porting Gen 5 LT4 & LT5 Cylinder Heads (PAIR)
Katech CNC Porting Gen 5 LT4 & LT5 Cylinder Heads (PAIR)
In Stock
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Description: CNC Porting Service
Item #: KAT-M6753-LT4
Condition: New
Price: $561.99
Sale: $499.99
Save: 11%
Save: $62.00
Qty:

GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech CNC Porting LS1 Truck 241, 806, 853 Cylinder Heads (PAIR)
Katech CNC Porting LS1 Truck 241, 806, 853 Cylinder Heads (PAIR)
In Stock
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Description: CNC Porting Service
Item #: KAT-M4321
Condition: New
Price: $561.99
Sale: $499.99
Save: 11%
Save: $62.00
Qty:

GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech CNC Porting LS1/Truck 862, 706 Cylinder Heads (PAIR)
Katech CNC Porting LS1/Truck 862, 706 Cylinder Heads (PAIR)
In Stock
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Description: CNC Porting Service
Item #: KAT-M7107
Condition: New
Price: $561.99
Sale: $499.99
Save: 11%
Save: $62.00
Qty:

GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech CNC Porting LS2/LS6/Truck 243, 799, 317, 035 Cylinder Heads (PAIR)
Katech CNC Porting LS2/LS6/Truck 243, 799, 317, 035 Cylinder Heads (PAIR)
In Stock
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Description: CNC Porting Service
Item #: KAT-M3835
Condition: New
Price: $561.99
Sale: $499.99
Save: 11%
Save: $62.00
Qty:

GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech CNC Porting LS3 L92 L99 L76 821, 823, 716 Cylinder Heads (PAIR)
Katech CNC Porting LS3 L92 L99 L76 821, 823, 716 Cylinder Heads (PAIR)
In Stock
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Description: CNC Porting Service
Item #: KAT-M7028
Condition: New
Price: $561.99
Sale: $499.99
Save: 11%
Save: $62.00
Qty:

GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech CNC Porting LS3/L92/L99/L76 364, 5364 Cylinder Heads (PAIR)
Katech CNC Porting LS3/L92/L99/L76 364, 5364 Cylinder Heads (PAIR)
In Stock
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Description: CNC Porting Service
Item #: KAT-M7412
Condition: New
Price: $561.99
Sale: $499.99
Save: 11%
Save: $62.00
Qty:

GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech CNC Porting LS7 8452 or LSX-LS7 Cylinder Heads (PAIR)
Katech CNC Porting LS7 8452 or LSX-LS7 Cylinder Heads (PAIR)
In Stock
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Description: CNC Porting Service
Item #: KAT-M6897
Condition: New
Price: $599.99
Qty:

GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech CNC Porting LSA/LS9 heads, 4863, 863 or 1771 Casting (PAIR)
Katech CNC Porting LSA/LS9 heads, 4863, 863 or 1771 Casting (PAIR)
In Stock
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Description: CNC Porting Service
Item #: KAT-M7090
Condition: New
Price: $561.99
Sale: $499.99
Save: 11%
Save: $62.00
Qty:

GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech CNC Porting LT4/LT5 Combustion Chamber
Katech CNC Porting LT4/LT5 Combustion Chamber
In Stock
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Description: Katech CNC Machining Service
Item #: KAT-M7110
Condition: New
Price: $143.99
Sale: $129.59
Save: 10%
Save: $14.40
Qty:

GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech Competition Valve job & Cylinder Head Deburr
Katech Competition Valve job & Cylinder Head Deburr
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Description: Competition valve job
Item #: /S-VALVEJOB
Condition: New
Price: $427.99
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GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech Custom LS Cylinder Head Logo Laser Etching
Katech Custom LS Cylinder Head Logo Laser Etching
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Description: Precision Laser Etching for Gen 3–4 LS Cylinder Heads
Item #: /S-CUSTOMLASER-CYLHD
Condition: New
Price: $0.99
Qty:

GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech LS 243/799 Combustion Chamber Porting
Katech LS 243/799 Combustion Chamber Porting
In Stock
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Description: CNC Chamber Porting Service
Item #: KAT-M4470-R01
Condition: New
Price: $136.99
Sale: $123.29
Save: 10%
Save: $13.70
Qty:

GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Katech LS3 Combustion Chamber Porting
Katech LS3 Combustion Chamber Porting
In Stock
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Description: CNC Chamber Porting Service
Item #: KAT-M7112
Condition: New
Price: $136.99
Sale: $123.29
Save: 10%
Save: $13.70
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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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GM Cylinder Heads, Parts & Services - CNC Cylinder Head Porting & Machining Services - Katech Engineering - Labor (Half Hour)
Labor (Half Hour)
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Item #: /TECHNICIAN.5
Condition: New
Price: $80.99
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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.