Engine Valves / Guides / Springs

Cylinder head inlet valve kit. 
Kit includes inlet valve x 6



Fits:

Porsche 911 S / TU /T / E - 1965 to 1969
Porsche 914-6 - 1970 to 1976

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Diagram ref no 9.

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90110540700

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Engine cylinder head exhaust valve kit - TRW. 
Kit contains TRW exhaust valve x 6

Fits:
Porsche 911 T / E / S 2.2ltr - 1970 to 1971
Porsche 911 T / E / S 2.4ltr - 1972 to 1973
Porsche 911 / S 2.7ltr - 1974 to 1977
Porsche 911 2.7 Carrera - 1974 to 1976

Diameter - 40mm

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91110541550

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Engine cylinder head exhaust valve kit - OE Match
Kit contains TRW exhaust valve x 6



Fits:
Porsche 911 T / E / S 2.2ltr - 1970 to 1971
Porsche 911 T / E / S 2.4ltr - 1972 to 1973
Porsche 911 / S 2.7ltr - 1974 to 1977
Porsche 911 2.7 Carrera - 1974 to 1976

Diameter - 40mm

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91110541550

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Engine cylinder head inlet valve kit. 
Kit includes inlet valve kit x 6

Fits:
Porsche 911 S - 1969

Click 'Zoom in' for large parts diagram.
Diagram ref no 9

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90110541100

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Engine cylinder head inlet valve kit - TRW
Kit contains TRW inlet valve x 6

Fits:
Porsche 911 T / E / S 2.2ltr - 1970 to 1971
Porsche 911 T / E / S 2.4ltr - 1972 to 1973
Porsche 911 2.7 Carrera MFI - 1973 to 1976
Porsche 911 / S 2.7ltr CIS - 1974 to 1977

Diameter - 46mm

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91110541120

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Engine cylinder head inlet valve kit.
Kit contains inlet valve x 6

Fits:
Porsche 911 T / E / S 2.2ltr - 1970 to 1971
Porsche 911 T / E / S 2.4ltr - 1972 to 1973
Porsche 911 2.7 Carrera MFI - 1973 to 1976
Porsche 911 / S 2.7ltr CIS - 1974 to 1977

Diameter - 46mm

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91110541120

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High performance valve spring, seat and retainer kit 9mm. 

Fits:
Porsche 911 - 1965 to 1989
Porsche 964 - 1989 to 1994

Our Valve Springs are designed and manufactured to specifically fit the envelope of a Porsche application not a spring from another use. 

It operates a higher natural frequency than the original spring for racing and at the very least minimizes damage from over rev in track day situations. 

Kit includes
High performance valve spring x 12
High performance valve spring seat x 12
High performance 9mm titanium valve spring retainer disc x 12

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HP109HSSKIT

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SET OF 12 valve guides - standard. Inlet x 6 and exhaust x 6.

This is the standard valve guide used in early air-cooled Porsche 911/930 cylinder heads. It’s a plain (non-hydraulic) guide that locates the valve stem in the head; when worn it causes oil burning, loss of compression and poor valve seating — so they’re commonly replaced whenever heads are rebuilt.

What the part is (technical data / dimensions)

Application: Porsche 911 / 930 from about 1965–1989 (varies slightly by model and year; early cars both intake & exhaust, later years sometimes exhaust only). Standard size (typical OE): ID ≈ 9.00 mm, OD ≈ 13.06 mm, length ≈ 51.2 mm.        

Fits:Porsche 911 1965-1968 2.0L / 912 SWB (F)Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)Porsche 911 1974-1977 2.7L / 1976-77 3.0 CarreraPorsche 911 1978-1983 3.0L / SCPorsche 911 1984-1986 3.2LPorsche 911 1987-1989 3.2L G50Porsche 911 1975-1977 3.0L Turbo (930)Porsche 911 1978-1989 3.3L Turbo (930)

Why these guides should be replaced

Valve guides are a wearing item. Replace them when any of the following occur or when you rebuild the engine head.Excessive valve stem play — worn guide ID internal diameter lets the valve rock and misalign with the seat , poor sealing, reduced compression and power.Oil consumption / smoking — worn guides allow oil to wick down the stem into the combustion chamber, causing blue/grey smoke and fouled plugs.Hard starting, rough idle, misfire — poor sealing / valve timing irregularities from misaligned valves.Valve wobble that leads to premature valve stem wear or valve seat damage — once stems or seats are damaged you need deeper surgery.If a guide is cracked, broken, or has excessive ovality — must be replaced.Whenever you remove and refinish seats / replace springs / do a full head rebuild — replacing guides at that time is cheap insurance and ensures correct alignment. 

Inner diameter 9,00 mm
Outer diameter 13,06 mm
Total Length 51,20 mm

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Diagram Ref No 2 and 2A.

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93010432100

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Valve spring engine set.
Complete engine valve spring set - inner and outer springs



Fits:
Porsche 911 - 1965 to 1989
Porsche 964 - 1989 to 1994

Valve springs endure significant thermal stress, which can cause them to lose tension over time. A broken spring can lead to severe engine damage, therefore, it's crucial to inspect and replace the springs as needed during an engine overhaul. The intake and exhaust valves use identical springs, consisting of an inner and outer spring pair for each valve. Alongside these, we offer a comprehensive selection of engine repair components, including valve stem seals and valve guides.

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Diagram ref no 13

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SPRINGKIT01

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Valve stem seals. Porsche 911 / 964
PACK OF 12



Fits:
Porsche 911 - 1968 to 1989 (12 Per Engine)
Porsche 964 3.6ltr - 1989 to 1994 (12 Per Engine)
Porsche 964 turbo - 1991 to 1994 (12 Per Engine)

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Diagram Ref No 19.

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96410411107

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