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Porsche > 356 (1950-1965) > 356 1950-55 > Engine Rebuild Parts >

Rocker Arms & Tappets

Rocker Arms & Tappets

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DISPLAYING 1 to 7 (of 7 products)
Cam follower set (8 pcs). Porsche 356 Pre-A - 53905020SET
4
Cam follower set (8 pcs). Porsche 356 Pre-A
36905222SET
Product Information
Product Information
Cam follower set (8 pcs).
For the 2 piece engine case. Very high quality!! CNC machined and hardened to 62 HRC.

klassiek

Fits:
Porsche 356 PRE-A

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Related, superseded, cross reference or alternative numbers for comparison.

36905222SET
53905020SET

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Cam lifter set. Porsche 356/912
1
Cam lifter set. Porsche 356/912
WC-NL-174
Product Information
Product Information
Set Of Web Cam Lifters.
Restore dependable valve-train operation and provide the correct working interface for a compatible camshaft with this OE Match Set of Web Cam Lifters, reference WC-NL-174. Designed for use in compatible engine builds, these lifters—also known as cam followers or tappets—transfer the movement of the camshaft through the valve train, allowing the intake and exhaust valves to open and close correctly.

Fits:
Porsche 356 / 912

Lifters operate directly against the camshaft lobes and are subjected to continuous mechanical loading, friction, and high engine temperatures. Their condition and compatibility with the camshaft are therefore critical to valve-train reliability. A correctly matched lifter maintains consistent contact with the cam lobe, helping preserve the intended camshaft profile and accurate valve operation.  

What This Product Does:
  • Follows the profile of the rotating camshaft lobes.
  • Transfers camshaft movement through the valve train.
  • Helps control the opening and closing of the intake and exhaust valves.
  • Supports correct valve lift and timing.
  • Provides a critical contact surface between the camshaft and valve train.
  • Helps maintain consistent valve-train operation.
  • Supports smooth and dependable engine performance.
  • Replaces worn, pitted, scored, or damaged lifters.
  • Provides a suitable solution for compatible engine rebuilds and camshaft installations.

Symptoms Of Wear Or Failure:
  • Ticking, tapping, or clicking from the valve train.
  • Increasing valve-train noise with engine speed.
  • Difficulty maintaining correct valve clearances.
  • Repeated changes in valve adjustment.
  • Reduced engine power or performance.
  • Rough or inconsistent engine operation.
  • Reduced valve lift due to component wear.
  • Pitting or scoring on the lifter faces.
  • Concave or uneven wear on the lifter contact surfaces.
  • Visible wear or damage to corresponding camshaft lobes.
  • Metallic particles in the engine oil.
  • Abnormal lifter wear discovered during engine disassembly.

Why Replacement Matters:

  • Lifters are critical to both valve operation and camshaft durability. The camshaft and lifter contact surfaces operate together under substantial mechanical pressure, and excessive wear to either component can alter the intended valve lift and timing.
  • A worn, pitted, or incorrectly matched lifter may damage the corresponding camshaft lobe. As the surfaces deteriorate, metal particles can enter the engine oil and circulate through the lubrication system, potentially contributing to further internal engine wear.
  • A badly worn lifter or cam lobe can also reduce valve lift, affecting cylinder filling and exhaust gas flow. This may result in reduced performance, rough running, and inefficient combustion.
  • Correct installation is particularly important when fitting replacement lifters. The condition of the camshaft must be inspected carefully, and the lifters must be compatible with the specific camshaft being used. Installing new lifters against an unsuitable or severely worn camshaft may result in rapid wear and premature failure.
  • Replacing worn or unsuitable components with the correct OE Match Web Cam Lifters WC-NL-174 helps restore consistent valve-train movement, correct camshaft operation, and dependable engine performance when correctly matched and installed.

Feeler gauge with blade. Porsche 911 / 356 / 914/6 - 00072121320
1
Feeler gauge with blade. Porsche 911 / 356 / 914/6
00072121320/1
Product Information
Product Information
Feeler gauge with blade

original

Fits:
Porsche 911 1965-89
Porsche 964 - 1989 to 1994
Porsche 356
Porsche 914/6

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00072121320
00072121320

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HP Lifters (8 pcs). Porsche 356/912
1
HP Lifters (8 pcs). Porsche 356/912
GDP356/912LIFTER
Product Information
Product Information
HP Lifters, Works With All Stock Profile Camshafts (8 pcs).
Restore reliable valve-train operation and consistent camshaft performance with this OE Match HP Lifter Set, reference GDP356/912LIFTER. Supplied as a set of 8 lifters, these components are designed for compatible engine applications and are intended to work with all stock-profile camshafts, making them suitable for standard-specification engine rebuilds, restorations, and maintenance.

Fits:
Porsche 356 / 912

Lifters, also known as cam followers or tappets, form a critical interface between the camshaft and the engine's valve train. As the camshaft rotates, each cam lobe acts on a lifter, transferring movement through the associated valve-train components to open and close the intake and exhaust valves at the correct points in the engine cycle.

What This Product Does:
  • Includes 8 lifters for a complete compatible engine application.
  • Works with compatible stock-profile camshafts.
  • Follows the rotating camshaft lobes.
  • Transfers camshaft movement through the valve train.
  • Helps control correct intake and exhaust valve operation.
  • Supports accurate valve timing and valve lift.
  • Provides a consistent contact surface between the camshaft and valve train.
  • Helps maintain smooth and dependable engine operation.
  • Replaces worn, pitted, scored, or damaged lifters.
  • Provides an OE Match solution for compatible engine rebuilds and restorations.

Symptoms Of Wear Or Failure:

  • Ticking, tapping, or clicking noises from the valve train.
  • Increased mechanical noise as engine speed rises.
  • Difficulty maintaining correct valve clearances.
  • Reduced engine performance.
  • Rough or inconsistent engine operation.
  • Reduced valve lift caused by component wear.
  • Pitting or scoring on the lifter contact surfaces.
  • Concave or unevenly worn lifter faces.
  • Visible camshaft lobe wear.
  • Metallic particles in the engine oil.
  • Abnormal wear discovered during valve-train inspection.
  • Damaged or excessively worn lifters found during an engine rebuild.

Why Replacement Matters:
  • Lifters operate directly against the camshaft and are critical to correct valve-train operation. A worn lifter surface can prevent the component from following the camshaft profile correctly, potentially affecting valve lift, valve timing, combustion efficiency, and overall engine performance.
  • Lifter and camshaft wear are also closely related. A damaged or incorrectly matched lifter can accelerate wear of the corresponding camshaft lobe. Once this wear begins, metallic debris may circulate through the engine oil and contribute to damage elsewhere within the engine.
  • Replacing worn lifters is particularly important during an engine rebuild or when installing an appropriate camshaft. Correct compatibility between the camshaft profile and lifters helps establish the correct contact pattern and promotes reliable long-term operation.
  • Replacing worn or damaged components with this OE Match HP Lifter Set GDP356/912LIFTER – 8 Pieces helps restore consistent valve-train movement, correct camshaft operation, and dependable engine performance when installed with a compatible stock-profile camshaft.

Rocker arm screw. Porsche 356 / 912 - 36905243
4
Rocker arm screw. Porsche 356 / 912
36905243/1
Product Information
Product Information
Rocker arm screw. 
Sold each - 8 required per car

oematch

Fits:

Porsche 356 - 1950 to 1955
Porsche 356A - 1956 to 1959
Porsche 356B - 1959 to 1963
Porsche 356C / SC - 1963 to 1965
Porsche 912 - 1966 to 1969

This rocker arm adjusting screw is suitable for use in vehicles that are equipped with cast iron or aluminum alloy rocker arm supports.

Please Note
This rocker arm adjusting screw is not used on the Carrera versions of the Porsche 356

Click 'Zoom in' for large parts diagram.
Diagram ref no 21



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36905243
36905243

The product you are viewing cross references to these numbers
Spacer for rocker arm. Porsche 356 / 912 - 53905237
2
Spacer for rocker arm. Porsche 356 / 912
Special Order item
53905237
Product Information
Product Information
Spacer for rocker arm. 0,60 mm.
Sold each.

porsche

Fits:
Porsche 356 all models
Porsche 912 1965-69

Click 'Zoom in' for large parts diagram.
Diagram ref no 17

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

53905237
53905237

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Valve push rod set (8 pcs). Porsche 356 Pre-A - 53905020
2
Valve push rod set (8 pcs). Porsche 356 Pre-A
53905020SET
Product Information
Product Information
Valve push rod set (8 pcs).

klassiek

Fits:
Porsche 356 PRE-A

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

53905020SET
53905020

The product you are viewing cross references to these numbers
DISPLAYING 1 to 7 (of 7 products)
Also found on these pages
About Rocker Arms & Tappets

Rocker Arms (Cam Followers) & Tappets – Precision Valve Train Components for Porsche Engines

The rocker arms (also known as cam followers) and tappets are crucial components within your Porsche’s valvetrain system. They convert the rotational movement of the camshaft into the vertical motion that opens and closes the engine’s valves, allowing precise control of air, fuel, and exhaust flow.

At Design911, we offer a complete range of rocker arms and tappets developed for Porsche engines across all generations. Manufactured from high-strength, wear-resistant alloys, these components ensure smooth operation, minimal friction, and long-lasting durability. Whether you’re restoring a classic air-cooled 911 or upgrading a modern GT engine, our quality valvetrain components deliver the accuracy and reliability your Porsche demands.

What Do Rocker Arms & Tappets Do?

Rocker arms and tappets form the mechanical link between the camshaft and the valves — controlling the timing and lift that determine engine breathing efficiency.

Core Functions:

  • Transmit camshaft movement to open and close the intake and exhaust valves.
  • Maintain precise valve timing for efficient combustion.
  • Reduce friction and wear through precise geometry and lubrication.
  • Ensure smooth, quiet operation across the rev range.
  • Support consistent power delivery and optimal performance.

Well-functioning rocker arms and tappets are essential for maintaining engine efficiency, throttle response, and durability.

Why Do Rocker Arms & Tappets Fail?

Continuous exposure to high temperatures, pressure, and friction makes rocker arms and tappets susceptible to wear over time.

Common Causes of Failure Include:

  • Oil starvation due to blocked passages or poor lubrication.
  • Surface wear or pitting from high mileage or contamination.
  • Excessive valve clearance leading to noise and impact damage.
  • Camshaft wear causing uneven contact and mechanical stress.
  • Material fatigue from prolonged high RPM use.

Symptoms of failure include ticking or knocking noises, loss of power, misfires, or excessive valve noise, all indicating the need for inspection and replacement.

Why Replace Valvetrain Components?

Replacing worn rocker arms or tappets restores accurate valve timing, reduces friction, and prevents camshaft or valve damage. Our high-performance, precision-engineered replacements are designed for exact fitment and long-term durability under extreme conditions.

Key Benefits:

  • Restores proper valve timing and smooth operation.
  • Reduces engine noise and friction losses.
  • Prevents premature wear of the camshaft and valves.
  • Manufactured from heat-treated, wear-resistant materials.
  • Direct-fit compatibility for a wide range of Porsche engines.
  • Ideal for rebuilds, restorations, or performance upgrades.

A reliable valvetrain system ensures your Porsche runs smoother, quieter, and more efficiently — preserving both performance and longevity.

Highlights:

  • High-strength rocker arms, cam followers, and tappets for Porsche engines.
  • Precision-machined for durability and accurate valve control.
  • Reduces noise, friction, and wear under extreme conditions.
  • Perfect for rebuilds, tuning, and classic restoration projects.
  • Direct-fit, manufacturer-quality parts for 911, Cayman, Boxster and other models.
  • Essential for smooth, consistent engine performance.

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