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Katech Engineering LLC - GM Cylinder Heads, Parts & Services
Since 1977, Katech Engineering has applied race-winning experience to the development of high-performance GM cylinder heads and CNC porting services. Designed for GM LS and LT platforms, our solutions deliver proven airflow, power, and durability for street, track, and professional motorsports use.
All Katech GM cylinder head parts and services are engineered, CNC-machined, and inspected in-house at our Clinton Township, Michigan, facility. Using the same processes trusted by championship-winning GM racing programs, we offer complete cylinder heads, precision CNC porting, and custom solutions validated through dyno and race testing.
Built in the USA. Proven on the track.
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Built on decades of championship-winning engine development, Gen 3 and Gen 4 LS cylinder heads from Katech Engineering deliver proven airflow, durability, and power for street, strip, and...More Details »
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Since 1977, Katech Engineering has developed high-performance GM valve springs engineered to deliver precise valvetrain control, durability, and reliability under extreme engine speeds and...More Details »
GM Cylinder Heads, Parts & Services Featured Products
Items 61-107 of 107
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Price: $13.99
Backordered
Description: Ferrea LS7 Hollow Stem Exhaust Valve
Item #: FER-F2042-8
Condition:
New
Price: $451.99
Description: Gen 3/4 Stainless steel exhaust valve
Condition:
New
Price: $28.49
Description: Gen 3/4 Stainless steel intake valve
Condition:
New
Price: $28.49
Price: $4.99
In Stock
Description: Seal/seat combination style, pack of 8 for singles use 12645472
Item #: GMP-12482062
Condition:
New
Price: $52.99
Backordered
Description: OEM GM Inconel LS3 Exhaust Valve
Item #: GMP-12612427
Condition:
New
Price: $35.99
In Stock
Description: OEM GM Inconel LT1/LT4 Exhaust Valve
Item #: GMP-12733470
Condition:
New
Price: $35.99
Price: $4.99
Backordered
Description: Seal/seat combination style, set of 8 for singles use 12645673
Item #: GMP-12482063
Condition:
New
Price: $48.99
Backordered
Description: OEM GM L92 Intake Valve solid stem also fits LS3/LSA/LS9
Item #: GMP-12627970
Condition:
New
Price: $26.99
In Stock
Description: For stock LS7 & LT4 heads
Item #: GMP-19302366
Condition:
New
Price: $31.99
In Stock
Description: LS Header/Exhaust Manifold Gasket
Item #: GMP-12617944
Condition:
New
Price: $22.99
In Stock
Description: OEM LS1/LS6 cylinder head gasket
Item #: GMP-12589226
Condition:
New
Price: $59.99
In Stock
Description: OEM LS2/LS6 cylinder head gasket
Item #: GMP-12589227
Condition:
New
Price: $73.99
In Stock
Description: OEM LS3 cylinder head gasket
Item #: GMP-12610046
Condition:
New
Price: $102.99
In Stock
Description: OEM GM LS3 Exhaust Valve
Item #: GMP-12582719
Condition:
New
Price: $33.99
Backordered
Description: OEM GM LS3 Intake Valve
Item #: GMP-12569427
Condition:
New
Price: $59.99
In Stock
Description: OEM LS7 cylinder head gasket
Item #: GMP-12582179
Condition:
New
Price: $75.99
In Stock
Description: LS7 Only Header/Exhaust Manifold Gasket
Item #: GMP-12594171
Condition:
New
Price: $54.99
In Stock
Description: OEM GM LS7 Exhaust Valve
Item #: GMP-12618110
Condition:
New
Price: $62.99
In Stock
Description: OEM LS9 cylinder head gasket
Item #: GMP-12622033
Condition:
New
Price: $87.99
In Stock
Description: 19 Needed plus 1 odd bolt part number GMP-11611976
Item #: GMP-11546959
Condition:
New
Price: $4.99
Price: $34.99
Price: $83.99
Price: $91.99
In Stock
Description: GM LT4/LT5 Titanium Intake Valve
Item #: GMP-12650770
Condition:
New
Price: $123.99
In Stock
Description: Sold in halves. 32 required per engine
Item #: GMP-10166345
Condition:
New
Price: $3.99
In Stock
Description: Designed for use with PSI-LS1511 or PSI-LS1516 valve springs
Item #: KAT-7128
Condition:
New
Price: $16.99
In Stock
Description: Designed for use with PSI-1511 valve springs
Item #: KAT-7119
Condition:
New
Price: $16.99
In Stock
Description: For stock LS7 & LT4 heads
Item #: KAT-4682
Condition:
New
Price: $17.99
In Stock
Description: For LS7 engines
Item #: KAT-6586-R01
Condition:
New
Price: $224.99
In Stock
Description: For LT1/LT2/LT4/LT5
Item #: KAT-7799-R01
Condition:
New
Price: $224.99
In Stock
Description: For LT1/LT2/LT4/LT5
Item #: KAT-7800
Condition:
New
Price: $224.99
In Stock
Description: For LS heads with PSI springs and CHE shoulder style bronze guides
Item #: KAT-6545
Condition:
New
Price: $8.99
In Stock
Description: For LT4 heads
Item #: KAT-6924
Condition:
New
Price: $8.99
Price: $224.99
In Stock
Description: For LT4/LT5
Item #: KAT-7486
Condition:
New
Price: $224.99
In Stock
Description: Super Alloy
Item #: KAT-7484
Condition:
New
Price: $61.99
In Stock
Description: 1.550" diameter
Item #: EP-01-2204-8
Condition:
New
Price: $21.99
In Stock
Description: 2.00" diameter
Item #: EP-01-2220-8
Condition:
New
Price: $21.99
In Stock
Description: 2.02" diameter
Item #: EP-01-2202-8
Condition:
New
Price: $21.99
In Stock
Description: 1.57" diameter
Item #: EP-01-2200-8
Condition:
New
Price: $21.99
Backordered
Description: LT Header/Exhaust Manifold Gasket
Item #: GMP-12657093
Condition:
New
Price: $20.99
In Stock
Description: OEM LT1/LT4 Exhaust Valve
Item #: GMP-12678746
Condition:
New
Price: $33.99
Items 61-107 of 107
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