Inlet Manifold

Drive by wire inlet conversion kit with inlet manifold runners.
Convert the G-Model engine to 964/993 induction with Drive by Wire set-up

Fits:
Porsche 911 - 1974 - 1989

Please Note: 
The aluminium or plastic intake plenum(inlet manifold) is not included in the kit

Product Overview:

Inject power and precision into your vintage aircooled engine

Conversion kit for the 911 G-model to become a DBW (Drive by wire) intake based on the 964 induction and using the 74mm original Bosch throttle body (Sometimes referred to as 76mm). This is intended to breathe a bit more life into a classic G-model.

The kit includes

• Throttle body runner for 74mm throttle body
• Original Bosch electronic throttle body
• Original Bosch MAP-T-sensor
• Resonance tube
• Vacuum solenoid
• Connectors and hose
• Vacuum check valve
• Intake runners for the Porsche 911 G-model engine

Intake runners are made out of billet aluminium, 3D milled in a 5-axis machine. The port diameter indicated in the options is the diameter of the port in the cylinder head. Please note that these are the 2-bolt designs. 

To create a bit of intimacy between you and your engine we have included a bit of DIY work for you to convert your existing Porsche 964 intake into this version. 

The intake also exists in two versions - this version is what we at Islandworks use with all other intakes, being a modified PA12 material from an industrial manufacturing process. Both options have the same performance and the same durability with the difference being the look and feel of a 5-axis machined piece as the very first thing you lay your eyes on when you open the engine decklid!
For both options the lower resonance tube is made from our usual modified PA12 in black.

The following parts will be reused from the 964 intake:

• Rubber boots and clamps
• Vacuum reservoir
• The aluminium or plastic plenums
• Resonance flap, actuator and shaft

Please Note: 
The aluminium or plastic intake plenum is not included in the kit and neither are any of the items specifically listed as excluded above.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

96411090130

The product you are viewing cross references to these numbers

EFI Intake Runners for Porsche 911SC – Compatible with 964 & 993 Intakes
Upgrade your Porsche 911SC by replacing the aging and complex K-Jetronic system with a modern EFI (Electronic Fuel Injection) solution. These custom intake runners allow you to easily mount a 964 or 993 intake manifold, enabling a straightforward EFI conversion.

PLEASE NOTE: runners only – no fuel rails or injectors

Key Features:
• Designed to fit Porsche 911SC with 964 or 993 intake manifold
• Supports easy installation of an EFI system
• Option to retain original ignition or upgrade to a full EFI+ignition setup
• Perfect for eliminating the original K-Jetronic fuel system

Inlet Diameter Options:
•   Standard: 38 mm
•   Optional: 39–44 mm

Definitions:
•   DBW (Drive-by-Wire): Electronic throttle and pedal system
•   DMR (Direct Mount Regulator): A fuel pressure regulator mounted directly on the fuel rail

Whether you're doing a full standalone ECU conversion or simply switching to fuel-only EFI, these runners provide the foundation for a modern, reliable setup on your classic Porsche 911SC.

EFI Intake Runners with fuel rails, injectors, Direct Mount Regulator (DMR), and Teflon base gasket insulators for Porsche 911SC – Compatible with 964 & 993 Intakes
Upgrade your Porsche 911SC by replacing the aging and complex K-Jetronic system with a modern EFI (Electronic Fuel Injection) solution. These custom intake runners allow you to easily mount a 964 or 993 intake manifold, enabling a straightforward EFI conversion.

Key Features:
• Designed to fit Porsche 911SC with 964 or 993 intake manifold (not included)
• Supports easy installation of an EFI system
• Option to retain original ignition or upgrade to a full EFI+ignition setup
• Perfect for eliminating the original K-Jetronic fuel system

Inlet Diameter Options:
•   Standard: 38 mm
•   Optional: 39–44 mm

Definitions:
•   DBW (Drive-by-Wire): Electronic throttle and pedal system
•   DMR (Direct Mount Regulator): A fuel pressure regulator mounted directly on the fuel rail

Whether you're doing a full standalone ECU conversion or simply switching to fuel-only EFI, these runners provide the foundation for a modern, reliable setup on your classic Porsche 911SC.

Fuel injection throttle body kit with air horns - Without fuel injectors



Fits:
Porsche 911 2.0ltr - 1965 to 1968
Porsche 911 2.2ltr - 1969 to 1971

Sizes Porsche 911 intake manifolds
Carburetor/Bosch MFI Ø32mm engine side - Ø40mm ITB side. Recommended for early 2.0ltr / 2.2ltr engines

Injectors options that can be used - 260cc / 300cc / 380cc / 420cc / 480cc / 520cc

This is a direct replacement kit for replacing carburetors while keeping the OEM look in your engine bay. 

The intake manifolds and riser plates are manufactured out of a single piece of 6082 aluminum and come in 2 styles. These differ in design due to the shape of the mounting flange for the cylinder head. The intake manifold can be used as replacement parts for the OEM part when damaged or has to be replaced*.
The ITBs are manufactured out of cast aluminum, whist the fuel rails are made out of aluminum 6060 extrusion profile and come with AN6 ORB connection for the fuel lines. The direct mount fuel pressure regulator is directly mounted to the fuel rails, so in this case you don’t need to drill additional holes in the engine bay for mounting a fuel pressure regulator.
The throttle linkage and all mounting hardware is made from stainless steel and the pivoting point of the throttle linkage is a ball and socket design for smooth operation. The levers allow you to adjust and finetune mechanical movement of the ITBs

The dimensions of the assembly are the same as the OEM carburetor setup and the riser plate comes with same mounting holes as the OEM carburetors, in this way you are able to use the OEM air filter box and OEM airhorns. Also the riser plates come with mounting options for an air intake temperature sensor, this is nicely hidden away between the ITBs. The diameter for the ITBs in the riser plate is 45mm. There is also an option for using airhorns, In this case you don’t need the riser plates.

The crank sensor and trigger wheel kit are additional and this type of kit is needed when using ITBs like these. Besides switching to ITBs you will need a stand alone ECU to get the fuel injection to work. Our kit only works with engines like the 3.0ltr that came with a “ big distributor”. You can leave the distributor or you can remove this unit when you are going to use a discoil type of ignition. In for case an adapter is included in the crank sensor kit. The pulley comes in 2 dimensions to choose from, a Ø116mm pulley and Ø126,5mm pulley.

Fuel injectors, fuel lines, standalone ECU, wiring harness are NOT included in the kit.

*In case of using as a replacement part 3 mounting holes for the carburetors or ITBs need to be re thread with a timesert or helicoil. Otherwise it is impossible to mount a threaded stud.

Kit Includes
2 x Full billet, hard anodised intake manifolds
6 x ITB complete with lever assembly
6 x Airhorns 45mmØx30mm
2 x Fuel rail with mounting hardware
1 x Throttle linkage with 2 throttle connection rods
1 x Direct mount fuel pressure regulator
2 x Riser plates with 1 air temperature sensor (for use with OEM air filter box)
1 x Crank sensor and trigger wheel kit (optional)
All needed gaskets and mounting hardware.

Fuel injection throttle body kit with air horns - Without fuel injectors



Fits:
Porsche 911 2.7ltr - 1974 - 1977

Sizes Porsche 911 intake manifolds
Carburetor/Bosch MFI Ø34mm engine side - Ø40mm ITB side. Recommended for early 2.7ltr engines

Injectors options that can be used - 260cc / 300cc / 380cc / 420cc / 480cc / 520cc

This is a direct replacement kit for replacing carburetors while keeping the OEM look in your engine bay. 

The intake manifolds and riser plates are manufactured out of a single piece of 6082 aluminum and come in 2 styles. These differ in design due to the shape of the mounting flange for the cylinder head. The intake manifold can be used as replacement parts for the OEM part when damaged or has to be replaced*.
The ITBs are manufactured out of cast aluminum, whist the fuel rails are made out of aluminum 6060 extrusion profile and come with AN6 ORB connection for the fuel lines. The direct mount fuel pressure regulator is directly mounted to the fuel rails, so in this case you don’t need to drill additional holes in the engine bay for mounting a fuel pressure regulator.
The throttle linkage and all mounting hardware is made from stainless steel and the pivoting point of the throttle linkage is a ball and socket design for smooth operation. The levers allow you to adjust and finetune mechanical movement of the ITBs

The dimensions of the assembly are the same as the OEM carburetor setup and the riser plate comes with same mounting holes as the OEM carburetors, in this way you are able to use the OEM air filter box and OEM airhorns. Also the riser plates come with mounting options for an air intake temperature sensor, this is nicely hidden away between the ITBs. The diameter for the ITBs in the riser plate is 45mm. There is also an option for using airhorns, In this case you don’t need the riser plates.

The crank sensor and trigger wheel kit are additional and this type of kit is needed when using ITBs like these. Besides switching to ITBs you will need a stand alone ECU to get the fuel injection to work. Our kit only works with engines like the 3.0ltr that came with a “ big distributor”. You can leave the distributor or you can remove this unit when you are going to use a discoil type of ignition. In for case an adapter is included in the crank sensor kit. The pulley comes in 2 dimensions to choose from, a Ø116mm pulley and Ø126,5mm pulley.

Fuel injectors, fuel lines, standalone ECU, wiring harness are NOT included in the kit.

*In case of using as a replacement part 3 mounting holes for the carburetors or ITBs need to be re thread with a timesert or helicoil. Otherwise it is impossible to mount a threaded stud.

Kit Includes
2 x Full billet, hard anodised intake manifolds
6 x ITB complete with lever assembly
6 x Airhorns 45mmØx30mm
2 x Fuel rail with mounting hardware
1 x Throttle linkage with 2 throttle connection rods
1 x Direct mount fuel pressure regulator
2 x Riser plates with 1 air temperature sensor (for use with OEM air filter box)
1 x Crank sensor and trigger wheel kit (optional)
All needed gaskets and mounting hardware.

Fuel injection throttle body kit with air horns - Without fuel injectors
For 3.0ltr SC or modified engines using the 3.0ltr as donor engine



Fits:
Porsche 911 3.0ltr - 1978 - 1983

Sizes Porsche 911 intake manifolds
Bosch injection system Ø39mm engine side - Ø42mm ITB side. Recommended for 3.0ltr engines
Bosch injection system Ø41mm engine side - Ø45mm ITB side. Recommended for custom set-ups or tuned engines
Bosch injection system Ø42mm engine side - Ø45mm ITB side. Recommended for custom set-ups or tuned engines

Injectors options that can be used - 260cc / 300cc / 380cc / 420cc / 480cc / 520cc

This is a direct replacement kit for replacing carburetors while keeping the OEM look in your engine bay. 

The intake manifolds and riser plates are manufactured out of a single piece of 6082 aluminum and come in 2 styles. These differ in design due to the shape of the mounting flange for the cylinder head. The intake manifold can be used as replacement parts for the OEM part when damaged or has to be replaced*.
The ITBs are manufactured out of cast aluminum, whist the fuel rails are made out of aluminum 6060 extrusion profile and come with AN6 ORB connection for the fuel lines. The direct mount fuel pressure regulator is directly mounted to the fuel rails, so in this case you don’t need to drill additional holes in the engine bay for mounting a fuel pressure regulator.
The throttle linkage and all mounting hardware is made from stainless steel and the pivoting point of the throttle linkage is a ball and socket design for smooth operation. The levers allow you to adjust and finetune mechanical movement of the ITBs

The dimensions of the assembly are the same as the OEM carburetor setup and the riser plate comes with same mounting holes as the OEM carburetors, in this way you are able to use the OEM air filter box and OEM airhorns. Also the riser plates come with mounting options for an air intake temperature sensor, this is nicely hidden away between the ITBs. The diameter for the ITBs in the riser plate is 45mm. There is also an option for using airhorns, In this case you don’t need the riser plates.

The crank sensor and trigger wheel kit are additional and this type of kit is needed when using ITBs like these. Besides switching to ITBs you will need a stand alone ECU to get the fuel injection to work. Our kit only works with engines like the 3.0ltr that came with a “ big distributor”. You can leave the distributor or you can remove this unit when you are going to use a discoil type of ignition. In for case an adapter is included in the crank sensor kit. The pulley comes in 2 dimensions to choose from, a Ø116mm pulley and Ø126,5mm pulley.

Fuel injectors, fuel lines, standalone ECU, wiring harness are NOT included in the kit.

*In case of using as a replacement part 3 mounting holes for the carburetors or ITBs need to be re thread with a timesert or helicoil. Otherwise it is impossible to mount a threaded stud.

Kit Includes
2 x full billet, hard anodised intake manifolds
6 x ITB complete with lever assembly
6 x airhorns 45mmØx30mm
2 x fuel rail with mounting hardware
1 x throttle linkage with 2 throttle connection rods
1 x Direct mount fuel pressure regulator
2 x riser plates with 1 air temperature sensor (for use with OEM air filter box)
1 x crank sensor and trigger wheel kit (optional)
All needed gaskets and mounting hardware.

Injection intake manifold. 

Sold separately - 2 per car



Fits:
Porsche 911E 2.0ltr - 1969 only
Porsche 911S 2.0ltr - 1969 only

OPTIONS:
1. 90111004301 - 911E with 901 110 317 0R cast into the body
2. 90111003101 - 911S with 901 110 309 0R cast into the body

Intake manifold for the 1969 model year Porsche 911E and 911S only. 

The 1969 model year 911E and 911S were the first 911 models with the mechanical piston pump injection system (MFI). 

The diameter is 36mm to the throttle body and 38mm to the velocity stack and the pitch of the studs to the throttle body is 66 mm. 

These intake manifolds are identical on the left and right and are sold separately - 2 required per car

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9011100

The product you are viewing cross references to these numbers

Inlet manifold adaptor kit, 2 bolt cylinder head for EFI (electronic fuel injection) conversion . 

Fits:
Porsche 911 / 911S 2.7ltr - 1974 to 1977
Porsche 911 SC - 1978 to 1983
Porsche 911 3.2 Carrera - 1984 to 1989

These adapters are used to modify the 2.7ltr / 3.0ltr / 3.2ltr Porsche 911 2 bolt cylinder head engines to the later 964 / 993 3.6ltr intake manifolds when converting to EFI.  

CNC machined on a 5 axis machine to our exacting tolerances and finish and anodised dark grey these are custom machined to match your port diameter and tapered to fit up to the 42mm inlet manifold port size.

The short adapor height maintains the overall height of the intake set, reducing the interference between the idle air control, the intake boot and the top of the engine bay insulation.  The factory plastic 3 bolt 964 stacks are too tall, and adding an adapter spacer would make the manifolds not fit at all.

This design permits the use of the standard 964 fuel injectors and fuel rails so positions the injector over the same relief in the intake port for the original CIS injector, ensuring proper atomisation of the injector spray into the intake port.

Key Features:
Precision machined from high grade aluminium
Anodized finish
Fits all Bosch 14mm O-ring fuel injectors
Fuel rail spacers are marked for easy cutting to suit long, medium or short injector types.

Kit Includes:
6 x CNC aluminium adapters
4 x Spacer/Posts for fuel rail 
4 x Bolts to suit standard full length Bosch injectors
12 x Nuts and washers 

Fuel rails not included in kit

34mm / 40mm / 41mm / 42mm adaptors are made to order. Please allow 4-5 weeks for delivery

Check out our fuel rail and fuel pressure regulator kits to make the perfect conversion set

Inlet manifold adaptor kit, 2 bolt cylinder head to 996 GT3 inlet manifold. 

6 x manifold adaptors (no fuel rail)

Fits:
Porsche 911 / 911S 2.7ltr - 1974 to 1977
Porsche 911 SC - 1978 to 1983
Porsche 911 3.2 Carrera - 1984 to 1989

These adapters are used to adapt the 2.7ltr / 3.0ltr and 3.2ltr Porsche 911 2-bolt cylinder head engines to take the 996 GT3 intake manifolds when converting to EFI.  
CNC machined our exacting tolerances and finish and anodised dark grey these are custom machined to match your port diameter and tapered to fit the 49mm bore of the GT3 inlet manifold.

The short height maintains the overall height of the intake set, reducing the interference between the idle air control valve, the intake boot and the top of the engine bay insulation.  

This design permits the use of the AMS fuel rails, and positions the injector over the same relief in the intake port for the original CIS injector, ensuring proper atomisation of the injector spray into the intake port.

Key Features:
Precision machined from high grade aluminium
Anodized finish
Fits all Bosch 14mm O-ring fuel injectors
Fuel rail spacers are marked for easy cutting to suit long, medium or short injector types.

Kit includes:

• CNC aluminium adapters x 6
• Spacer/Posts for fuel rail x 4
• Bolts to suit standard full length Bosch injectors x 4
• Nuts and washers for cylinder head studs x 12

What's Not Included:
Fuel rails, manifolds, rubber joiners, injectors, hose clamps pictured are not included in the sale.

44mm adaptors are made to order. Please allow 4-5 weeks for delivery

Check out our fuel rail and fuel pressure regulator kits to make the perfect conversion set.

Inlet Manifold Flange.

 


Fits:
Porsche 911 3.2L 1984-89

Diagram ref no 5

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

93011045900

The product you are viewing cross references to these numbers

Inlet / Intake Manifold Gasket.
Flat intake manifold gasket it used between the intake manifold runners and the cylinder head on Porsche flat-six engines. Each gasket seals one intake port pair; a complete engine typically uses six of them.
Sold each, typically 6 required per car.

Fits:
Porsche 911 1974 - 1983  - 6pcs required

Diagram ref no 7.

This gasket provides a gas-tight seal at the intake manifold interface so that all air entering the engine passes through the intended metered path (CIS / fuel injection system). By preventing air leaks at the manifold flange, it:
•  Maintains correct mixture and idle quality
•  Supports smooth throttle response and drivability
•  Helps avoid lean conditions that can lead to higher combustion temperatures.

Over time, intake manifold gaskets can harden, shrink or crack due to heat cycles, fuel vapour and age. When they fail:
• The engine may draw in unmetered air, causing rough idle, poor cold running or lean mixture.
•  You can experience hesitation, popping, or flat spots under acceleration.
•  Vacuum leaks can make tuning and diagnostics difficult and may increase fuel consumption.
Replacing old gaskets with fresh restores correct sealing, stabilises idle and mixture, and helps the engine run as intended.

When to replace
Consider replacing the inlet manifold gaskets if:
• You’re rebuilding or refreshing the top end of the engine.
• There are suspected vacuum leaks around the intake manifold.
• The engine has rough idle, hunting, or lean codes/symptoms not traced to other components.
• The original gaskets are visibly cracked, brittle, or oil/fuel soaked.
• You are converting, upgrading or servicing the CIS / intake system on a classic 911 or 930.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

93011019716

The product you are viewing cross references to these numbers

Inlet manifold gasket.
The Porsche 93011019714 Inlet Manifold Gasket is a genuine factory-engineered seal designed to ensure a precise, leak-free connection between the intake manifold and the cylinder heads. Each gasket provides a perfect fit and reliable sealing under high boost pressure, maintaining consistent airflow and combustion efficiency.
Sold each, 12 required per engine.

Fits:
Porsche 911 Carrera 3.2L 1984 - 1989 
Engine code: 93020, 93025, 93026
Please note: NOT for 930 Turbo

Diagram Ref No 6.

Manufactured from high-quality, heat- and pressure-resistant composite material, this gasket withstands the extreme conditions of turbocharged operation. It prevents unmetered air leaks that can reduce performance or fuel efficiency.

Twelve gaskets are required per vehicle to complete a full manifold installation — sold individually to allow for exact replacement needs.

Function: Seals the connection between intake manifold and cylinder head, maintaining airtight boost and vacuum integrity.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

93011019714

The product you are viewing cross references to these numbers

Inlet manifold gasket. Sold each.



Fits:
Porsche 911 1974-83

Click 'Zoom in' for large part diagram.
Diagram Ref No 7.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

93011019716

The product you are viewing cross references to these numbers

Inlet manifold gasket. 
OE Match replacement gasket built to meet original Porsche specifications, designed for the Porsche 911 Carrera 3.2L (1984–1989). This gasket provides a perfect seal between the intake manifold and the cylinder head, ensuring that air and fuel are delivered precisely to each combustion chamber.
Sold each, 12 required per engine.

Fits:
Porsche 911 Carrera 3.2L 1984 - 1989 
Engine code: 93020, 93025, 93026
Please note: NOT for 930 Turbo

Diagram Ref No 6.

•  Position: Between intake manifold and cylinder head
•  Function: Seals intake air passages, prevents vacuum or boost leaks
•  Replacement Interval: During intake removal, rebuild, or if leaks or idle issues occur
•  Benefits: Restores airtight sealing, smooth idle, and optimal air-fuel efficiency

Keep your classic Porsche running flawlessly with the OE Match 93011019714 Inlet Manifold Gasket. Built to OEM standards for the 911 Carrera 3.2, it seals the intake manifold to the cylinder head for airtight, efficient performance. Replace worn or leaking gaskets to restore smooth idle, strong power, and factory reliability.

Over time, intake gaskets harden and lose elasticity due to constant exposure to heat, pressure, and fuel vapours.

This can lead to:
•  Air or vacuum leaks affecting mixture balance and idle quality.
•  Reduced power, poor throttle response, or “hunting” idle.
•  Possible lean running and increased engine wear.

Replace during:
•  Intake manifold removal or service.
•  Engine rebuilds or top-end overhauls.
•  Any time vacuum leaks or air-fuel irregularities are detected.

Replacing with an OE Match gasket restores proper sealing, consistent idle, and smooth power delivery — crucial for maintaining your Porsche’s precision performance.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

93011019714

The product you are viewing cross references to these numbers

Intake manifold flange gasket. Sold each.



Fits:
Porsche 930 Turbo 1975-89
Porsche 964 Turbo 1991-94

Click 'Zoom in' for large parts diagram.
Diagram ref no 8

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

93011019715

The product you are viewing cross references to these numbers

Intake manifold flange gasket. Sold each.



Fits:
Porsche 930 Turbo 1975-89
Porsche 964 Turbo 1991-94

Click 'Zoom in' for large parts diagram.
Diagram ref no 8

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

93011019715

The product you are viewing cross references to these numbers