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Porsche > 911 & 912 (1965-1989) > 911 1974-1977 2.7L / 1976-77 3.0 Carrera > Engine Rebuild Parts >

Camshafts

Camshafts

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DISPLAYING 1 to 8 (of 8 products)
Camshaft Kit. Porsche 911S / 911 Carrera 2.7 - 90110516802, 90110516802, 90110518301, 90110518302
2
Camshaft Kit. Porsche 911S / 911 Carrera 2.7
CAMSHAFTKIT03
Product Information
Product Information
Camshaft SET OF 2, For Engines With Mechanical Fuel Injection Pump.
Restore accurate valve timing and correct operation of a mechanically fuel-injected engine with this OE Match Camshaft Set of 2. Designed for compatible engines equipped with a Mechanical Fuel Injection (MFI) pump, this matched two-camshaft set provides a replacement solution for engine rebuilds, restorations and repairs where the existing camshafts are worn, damaged or unsuitable.

Fits:
Porsche 911S 1965-73
Porsche 911 Carrera 2.7L 1974-77

Camshafts are precision internal engine components that control the opening and closing of the intake and exhaust valves. Their carefully engineered lobe profiles determine valve lift, duration and timing, directly influencing cylinder filling, exhaust gas evacuation, combustion efficiency, torque and engine performance.

What This Product Does:
  • Includes 2 camshafts for the compatible engine application.
  • Is designed for engines equipped with a mechanical fuel injection pump.
  • Controls the opening and closing of the intake and exhaust valves.
  • Maintains the required valve timing relative to crankshaft position.
  • Determines valve lift through the cam lobe profiles.
  • Determines how long the valves remain open.
  • Works with the associated rocker arms and valve-train components.
  • Supports correct operation of the engine alongside the MFI system.
  • Helps provide efficient cylinder filling and exhaust gas evacuation.
  • Supports smooth combustion and consistent engine performance.
  • Influences power delivery, torque and throttle response.
  • Replaces worn, damaged or unsuitable camshafts during an engine rebuild.

Symptoms Of Wear Or Failure:
  • Ticking, tapping or abnormal valve-train noises.
  • Reduced engine power.
  • Poor or inconsistent throttle response.
  • Rough or unstable idle.Engine misfires.
  • Uneven performance between cylinders.
  • Difficulty maintaining correct valve clearances.
  • Repeated changes in valve adjustment.
  • Reduced valve lift.
  • Flattened or excessively worn camshaft lobes.
  • Pitting, scoring or surface damage on the cam lobes.
  • Excessive wear on rocker arms or other mating components.
  • Abnormal camshaft journal wear.
  • Metallic particles in the engine oil or oil filter.
  • Visible camshaft damage during engine disassembly.

Why Replacement Matters:

  • Camshaft condition directly affects the engine's ability to breathe correctly. As cam lobes wear, their effective shape changes, potentially reducing valve lift or altering the period for which a valve remains open.
  • This can restrict the intake charge entering a cylinder or interfere with the efficient evacuation of exhaust gases. The resulting symptoms may include reduced power, poor throttle response, rough running and uneven cylinder performance.
  • Correct camshaft specification is especially important with Mechanical Fuel Injection. The MFI system is mechanically coordinated with engine operation, so the camshafts must be appropriate for the engine and injection configuration. Incorrect valve timing or an unsuitable camshaft profile can compromise the intended relationship between airflow and fuel delivery.
  • Camshaft wear can also damage associated valve-train components. Worn or pitted cam lobes may accelerate deterioration of rocker-arm contact surfaces, while damaged mating components can rapidly wear a replacement camshaft. Metal generated by this wear can circulate through the engine oil and potentially damage other internal components.



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

CAMSHAFTKIT03
90110516802
90110516802
90110518301
90110518302

The product you are viewing cross references to these numbers
Camshaft (set of 2). Porsche 911S (74-77) CIS Injection - WC-05-062, WC-05-072, WC-05-082, WC-05-432
1
Camshaft (set of 2). Porsche 911S (74-77) CIS Injection
WC-05-432
Product Information
Product Information
Camshaft (Set of 2).
Restore or upgrade accurate valve-train operation with this OE Match Camshaft Set, reference WC-05-432, supplied as a set of 2 camshafts for compatible engine applications. The camshafts are central components of the valve train, controlling precisely when and how far the intake and exhaust valves open and close throughout each engine cycle.

Fits:
Porsche 911S (74-77) CIS Injection

Size:
#134/149i .465/.450L 304°/284°D

Made of high quality billet blank Web cams have been Race proven for years, and provide reliable HP at all Power ranges.

Special order only

As the camshafts rotate, their carefully profiled lobes act on the corresponding followers, lifters, or other valve-train components. Each cam profile determines important operating characteristics including valve lift, duration, and timing. These characteristics influence how effectively the cylinders fill with the incoming air/fuel charge and how efficiently exhaust gases are expelled.

What This Product Does:
  • Includes 2 camshafts for compatible engine applications.
  • Controls the opening and closing of the intake and exhaust valves.
  • Determines valve timing relative to crankshaft position.
  • Controls valve lift through the profile of the camshaft lobes.
  • Determines how long the valves remain open through camshaft duration.
  • Works with followers or lifters to operate the valve train.
  • Helps control efficient cylinder filling.
  • Supports effective evacuation of exhaust gases.
  • Influences engine torque, power delivery, throttle response, and operating characteristics.
  • Helps maintain coordinated valve operation across the engine.
  • Replaces worn, damaged, or unsuitable existing camshafts.
  • Provides a two-camshaft solution for compatible engine builds.

Symptoms Of Wear Or Failure:
  • Ticking, tapping, or abnormal valve-train noises.
  • Reduced engine power or acceleration.
  • Rough or inconsistent engine operation.
  • Misfires or uneven performance between cylinders.
  • Reduced valve lift.
  • Difficulty maintaining correct valve clearances.
  • Repeated changes in valve adjustment.
  • Flattened or excessively worn camshaft lobes.
  • Pitting, scoring, or other surface damage on the lobes.
  • Excessive wear on followers or lifters.
  • Metallic particles in the engine oil.
  • Abnormal camshaft journal or bearing wear.
  • Visible camshaft damage during engine disassembly.

Why Replacement Matters:

  • Camshafts directly control valve movement and therefore have a significant influence on engine breathing, combustion, and performance. A worn camshaft lobe may no longer provide the intended valve lift or duration, preventing the corresponding valve from opening correctly.
  • Reduced or inconsistent valve movement can restrict airflow into the cylinders or interfere with exhaust gas evacuation. This can contribute to reduced power, poor throttle response, rough running, misfires, and inefficient combustion.
  • Camshafts and their followers or lifters also operate as closely matched contact surfaces. A worn or damaged follower can accelerate camshaft lobe wear, while a damaged camshaft can quickly deteriorate the corresponding follower. Metallic particles produced by this wear may circulate through the engine lubrication system and contribute to additional internal damage.
  • Because WC-05-432 is supplied as a set of two camshafts, correct installation and synchronisation of both components are essential. Incorrect camshaft timing can significantly affect engine operation and, in applications with limited piston-to-valve clearance, may cause serious internal engine damage.
  • Replacing worn or unsuitable components with this OE Match Camshaft Set of 2 – WC-05-432 helps restore accurate valve operation, consistent valve lift and timing, efficient engine breathing, and dependable performance when correctly matched to the intended engine configuration.



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

WC-05-432
WC-05-062
WC-05-072
WC-05-082
WC-05-432

The product you are viewing cross references to these numbers
Camshaft. Porsche 911 74-77 - 91110514303
5
Camshaft. Porsche 911 74-77
Special Order item
91110514303
Product Information
Product Information
Camshaft. Left.

porsche

Fits:
Porsche 911 1974-77 with Engine Codes:
911.42/43/44/47/48/48
911.81/82/84/85/86/89
911.90/93/94/98/99

Click 'Zoom in' for large parts diagram.
Diagram ref no 42

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

91110514303
91110514303

The product you are viewing cross references to these numbers
Camshaft. Porsche 911 74-77 - 13381, 91110514303
5
Camshaft. Porsche 911 74-77
91110514303/1
Product Information
Product Information
Camshaft. Left.

oematch

Fits:
Porsche 911 1974-77 with Engine Codes:
911.42/43/44/47/48/48
911.81/82/84/85/86/89
911.90/93/94/98/99

Click 'Zoom in' for large parts diagram.
Diagram ref no 42

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

91110514303
13381
91110514303

The product you are viewing cross references to these numbers
Camshaft. Porsche 911/911S - 91110514403, 91110514400
3
Camshaft. Porsche 911/911S
Special Order item
91110514403
Product Information
Product Information
Camshaft. Right.

porsche

Fits:
Porsche 911/911S 1974-77

Click 'ZOom in' for large parts diagram.
Diagram ref no 32

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

91110514403
91110514403
91110514400

The product you are viewing cross references to these numbers
Camshaft. Porsche 911/911S - 13382, 91110514403, 91110514400
3
Camshaft. Porsche 911/911S
91110514403/1
Product Information
Product Information
Camshaft. Right.

oematch

Fits:
Porsche 911/911S 1974-77

Click 'Zoom in' for large parts diagram.
Diagram ref no 32

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

91110514403
13382
91110514403
91110514400

The product you are viewing cross references to these numbers
Camshaft. Porsche 911S / 911 Carrera 2.7 - 90110516802, 90110516802, 90110518301, 90110516801
1
Camshaft. Porsche 911S / 911 Carrera 2.7
Special Order item
9011051
Product Information
Product Information
Camshaft, for engines with Mechanical Fuel Injection pump.

Fits:
Porsche 911S 1965-73
Porsche 911 Carrera 2.7L 1974-77

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

9011051
90110516802
90110516802
90110518301
90110516801

The product you are viewing cross references to these numbers
Camshaft. Porsche 911S / 911 Carrera 2.7 - 90110516802, 90110516802, 90110518301, 90110518302, 90110516801 - 12204, 22761
8
Camshaft. Porsche 911S / 911 Carrera 2.7
9011051
Product Information
Product Information
Camshaft, For Engines With Mechanical Fuel Injection Pump.
Restore accurate valve-train operation and correct compatibility with the mechanical fuel injection system using these OE Match Camshafts for engines equipped with a Mechanical Fuel Injection (MFI) pump.

Material: Steel

Fits:
Porsche 911S 1965-73
Porsche 911 Carrera 2.7L 1974-77

The camshaft is a precision internal engine component responsible for controlling the opening and closing of the intake and exhaust valves. Its carefully designed lobes determine valve lift, duration and timing, ensuring that each valve operates at the correct point in the engine's combustion cycle.

What This Product Does:
  • Control the opening and closing of the intake and exhaust valves.
  • Are intended for compatible engines fitted with a mechanical fuel injection pump.
  • Maintain correct valve timing relative to crankshaft position.
  • Determine valve lift through the shape of the cam lobes.
  • Determine how long the valves remain open.
  • Work with the rocker arms and associated valve-train components.
  • Help coordinate engine operation with the requirements of the MFI system.
  • Support efficient cylinder filling and exhaust gas evacuation.
  • Help maintain consistent combustion and engine performance.
  • Influence engine torque, power delivery and throttle response.
  • Replace worn, damaged or unsuitable existing camshafts.
  • Provide an OE-style solution for compatible Porsche MFI engine rebuilds.

Symptoms Of Wear Or Failure:
  • Ticking, tapping or abnormal valve-train noise.
  • Reduced engine power or acceleration.
  • Poor throttle response.
  • Rough or inconsistent engine operation.
  • Engine misfires or uneven cylinder performance.
  • Difficulty maintaining correct valve clearances.
  • Reduced valve lift.
  • Flattened or excessively worn cam lobes.
  • Pitting, scoring or deterioration of the cam surfaces.
  • Abnormal wear on rocker arms or other mating components.
  • Excessive wear of the camshaft journals.
  • Metallic particles discovered in the engine oil or filter.
  • Visible camshaft damage during engine disassembly.

Why Replacement Matters:

  • The camshaft determines when and how far the engine's valves open, making its condition fundamental to correct engine breathing and combustion.
  • If a cam lobe becomes worn, the corresponding valve may not open as far as intended or may effectively remain open for a shorter period. This can restrict cylinder filling or exhaust flow, resulting in reduced power, rough running and inconsistent performance.
  • Correct specification is particularly important on an engine fitted with mechanical fuel injection. The MFI system is mechanically coordinated with engine operation, and the correct camshaft configuration must be used for the intended engine and injection arrangement. An incorrect or unsuitable camshaft can compromise the relationship between valve operation, engine speed and fuel delivery.
  • Camshaft deterioration can also damage associated components. Worn or pitted cam surfaces may accelerate rocker-arm wear, while metallic debris produced by deteriorating components can circulate through the engine lubrication system.



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

9011051
90110516802
90110516802
90110518301
90110518302
90110516801

The product you are viewing cross references to these numbers
DISPLAYING 1 to 8 (of 8 products)
Also found on these pages
About Camshafts

Precision-Engineered Camshafts – Performance, Reliability, and Power for Porsche Engines

Camshafts are the heartbeat of any Porsche engine, controlling the timing and lift of the intake and exhaust valves to ensure precise combustion and efficient power delivery. A well-tuned camshaft defines how your engine breathes, responds, and performs — whether it’s a daily-driven 911 or a track-focused GT model.

At Design911, we supply a complete range of high-quality and performance-grade camshafts engineered to meet or exceed manufacturer specifications. Each camshaft is precision-machined for exact tolerances, ensuring smooth valve operation, consistent timing, and optimal performance across all driving conditions.

What Do Camshafts Do?

Camshafts regulate how air and fuel enter and exit the combustion chamber. By controlling valve timing, lift, and duration, they play a crucial role in engine power and efficiency.

Core Functions:

  • Control valve timing for optimal engine breathing.
  • Determine power characteristics, from low-end torque to high-rpm performance.
  • Synchronise intake and exhaust cycles for smoother operation.
  • Enhance efficiency, combustion stability, and throttle response.

High-performance camshafts are often tuned to deliver sharper throttle response, higher power output, and improved torque delivery for modified or rebuilt engines.

Why Do Camshafts Fail?

Even with Porsche’s engineering excellence, camshafts are subject to wear over time. Common causes of camshaft failure include:

  • Oil starvation leading to friction and surface wear.
  • Excessive heat or poor lubrication degrading cam lobes.
  • Improper timing belt/chain tension causing misalignment or damage.
  • Mechanical fatigue due to extended mileage or racing conditions.
  • Contaminated oil introducing abrasive particles into the valvetrain.

A worn or damaged camshaft can cause loss of power, misfires, rough idle, and reduced engine efficiency — making timely replacement essential to restore peak performance.

Why Replace with Performance-Grade Camshafts?

Replacing worn components with precision-engineered camshafts restores engine reliability and maximises output. Upgraded camshafts can also provide noticeable gains in horsepower and responsiveness.

Key Benefits:

  • Restores valve timing accuracy and smooth engine operation.
  • Increases power and torque, especially in performance-tuned engines.
  • Improves fuel combustion efficiency for cleaner running.
  • Ensures long-term reliability with precision-machined surfaces and premium materials.
  • Perfect fitment with no modification required on compatible Porsche engines.

Whether maintaining a classic flat-six or upgrading a modern turbocharged engine, these camshafts are designed to deliver manufacturer-level precision with motorsport-grade durability.

Highlights:

  • Precision-engineered camshafts for Porsche models old and new.
  • Enhanced performance and reliability, meeting manufacturer standards.
  • Motorsport-grade construction ensures durability under extreme loads.
  • Improved airflow and combustion efficiency for optimal power delivery.
  • Ideal for restorations, rebuilds, and performance tuning projects.
  • Designed for seamless compatibility with Porsche flat-six, turbo, and hybrid engines.       

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