Specialist Tools

Adapter engine case holder.

Fits:
Porsche 911
Porsche 964
Porsche 993
Porsche 986 / 996
Porsche 987 / 997

This adapter ring is engineered to mount directly the engine case to any universal engine stand using four 3/8" bolts, enabling full 360-degree rotation of the engine.

It  is precisely machined with all necessary reliefs and notches to ensure proper clearance for the engine components, including the flywheel and its corresponding lock tool.

Auxiliary chain tensioners for Porsche 994 / 963 / 996 GT3 / 997 GT3



STOMSKI RACING's new compact versions of this tool allows for easier installation and removal– included thumbscrews can be used to attach these tensioners – no tools necessary. Precise springs and tolerances provide for proper tension of the chain.

Stainless steel and anodized aluminum insure this tool will provide years of service.

Comes in a set of TWO.

Bock engine stand for workbench.



Fits:
Porsche 356
Porsche 911 912 F/G
Porsche 930
Porsche 914
Porsche 964
Porsche 993
Porsche 996
Porsche 997
Porsche 986/987 Boxster
Porsche 987c Cayman

Reference numbers:
00072120100, 000.721.201.00, 000 721 201 00, P201

For the revision of your Porsche engine, we offer engine mounts. The flange surface with your cantilevers to the mounting axis allows a secure and at the same time easily accessible attachment of the engine to a rolling engine stand.
Here you get the required trestle to be able to mount the engine mount also on a workbench or the like.
We have the engine stands for all classic Porsche as well as the 3.4-3.8L waterboxers in our program.
The stand is for engine mounts with a diameter of 60mm.

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Related, superseded, cross reference or alternative numbers for comparison.

6822

The product you are viewing cross references to these numbers

Cam block off plate for 996 / 997 GT3



Replace your bulky factory-style cam caps with these high-quality aluminum caps when the GT3 & Turbo vario lift intake cams are replaced for static timing race cams on any of the 996/997 Mezger engines.

A direct replacement for all GT3 Cup & RSR engines and all tuner applications.

Sold as a pair/set (2).

Cam profile plates for Porsche 996 / 997 GT3



Use our GT3 Cam Profile Plates to rough-in your GT3 cams prior to timing.
CNC machined from high quality aluminum and hard-coat anodized for protection and good looks, these plates will speed up setup time and ensure your cams are properly positioned before you start timing the engine.
With four cams and 24 valves to coordinate, these plates are sure to add that bit of confidence before you turn the engine over for the first time.

Sold as a set of two plates.

Cam sprocket tool for Porsche 996 / 997 GT3



STOMSKI RACING's version of this tool works on both the intake and the exhaust cams on the Cup engines and on all non-vario cams for the other GT3-type engines. This tool replaces the factory tool P9653/1. Moreover, additional refinements of this tool ensures that while torquing either the 16mm hex or the triple-box cam sprocket bolts, your tool is securely bushed and supported in the center of the tool, and thus will not slip off or round off the bolts. Black oxide finished hardened steel.

Camshaft Alignment Tool for Porsche – Precision 4-Cam Timing Locking System

This camshaft alignment tool is designed specifically for the four-cam 3.6-litre engines used in the Porsche 996 Turbo, 996 GT2, 997.1 Turbo, 997.1 GT2, and 997.2 GT2 RS. Engineered for absolute accuracy, it ensures all four camshafts remain precisely locked in their timed positions during timing chain replacement, camshaft servicing, cylinder-head work, or complete engine rebuilds.

Fits:

• Porsche 996 TURBO 2000-05
• Porsche 996 GT2 2001-05
• Porsche 997 MK1 GT3 2007-09
• Porsche 997 MK1 GT2 2007-09
• Porsche 997 MKII GT2 RS 2011-13

Optimised for Porsche’s high-performance Turbo and GT2 engines—where timing precision is critical—this tool set allows for clean, safe, and repeatable alignment, mirroring the function of specialist tools listed under 9661, 9661/1, and 9401.

Whether used in a professional Porsche workshop or by an advanced engine builder, this tool is essential for maintaining the performance, reliability and timing integrity of these legendary Mezger-based engines.

What This Camshaft Alignment Tool Does

This tool set enables:

• Precise positioning of all four camshafts on 3.6-litre Porsche turbo and GT2 engines
• Secure locking of cams during chain replacement and timing setup
• Accurate timing retention, preventing rotation or timing mismatch
• Correct alignment during cam phaser and chain tensioner servicing
• Professional-grade engine rebuilds with consistent timing accuracy
• Simplified installation via two specialised wrenches and pre-tensioner tools

Accurate camshaft timing ensures optimal engine performance, combustion efficiency, and long-term reliability.

Tool Set Components

• Two long camshaft wrenches (two thicknesses) for easy access and leverage
• Two cam chain pre-tensioner tools, ensuring chain tension during timing setup
• Locking fixtures for all four camshafts to maintain exact alignment

Designed for safe, efficient and repeatable timing chain replacement.

Compatible with engine types
M97/70S M97/70 M96/70S M96/70E

Why Timing Components Fail on Mezger-Based Porsche Engines

These high-performance engines are subjected to extreme loads, track usage, and high temperatures. Common failure points include:

• Timing chain stretch affecting cam synchronisation
• Worn cam chain guides causing slack and deviation
• Tensioner wear leading to startup rattles or timing drift
• Improper timing after previous repairs when incorrect tools were used
• Heat cycling, causing expansion and contraction of timing components
• Cam phaser wear, impacting valve timing accuracy

Symptoms often include: misfires, timing-related fault codes, loss of boost response, uneven idle, or unusual mechanical noise.

Why You Should Replace or Use This Camshaft Alignment Tool

A precision camshaft alignment tool ensures:

• Perfect synchronisation of all four camshafts
• Safely maintained timing during chain replacement
• Protection from costly piston-to-valve interference
• Accurate VVT/cam phaser alignment
• Reduced risk of engine damage during rebuilds
• Professional-standard timing results
• Confidence when working on high-value Porsche Turbo and GT2 engines

This tool is essential for anyone servicing or rebuilding Mezger-engined 911 models.

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

C4107

The product you are viewing cross references to these numbers

Camshaft Timing Tool Kit for Porsche – Complete Chain & Camshaft Alignment Set

This camshaft timing tool kit is designed specifically for Porsche engines in the 911 (997.2, 991.1), Boxster (987.2, 981) and Cayman (987.2, 981) ranges, providing all the essential tools required for camshaft alignment, timing chain replacement, and precision engine repairs.

Engineered to match the precision requirements of Porsche’s MA1 and MAB engine families, this kit offers professional-grade tools that ensure accurate camshaft locking, chain tensioning and crankshaft positioning. Its exact fit and strength make timing work faster, safer and more reliable—whether you're performing a full rebuild or timing chain service.

Fits:

• Porsche Boxster 987 2.7L 2005 -08/08
• Porsche Boxster 987 S 3.2/3.4L 2005-08/08
• Porsche Boxster 987 MKII 2.9L 2009-2012
• Porsche Boxster S 987 MKII 3.4L 2009-2012
• Porsche Boxster 981 2.7L 2012-16
• Porsche Boxster 981 S / GTS 3.4L 2012-16
• Porsche 997 MKII Carrera C2 3.6L 2009-12
• Porsche 997 MKII Carrera C4 3.6L 2009-12
• Porsche 997 MKII Carrera C2S 3.8L 2009-12
• Porsche 997 MKII Carrera C4S 3.8L 2009-12
• Porsche 991.1 Carrera C2 3.4L (350Bhp) 2012-16
• Porsche 991.1 Carrera C2S 3.8L (400Bhp) 2012-16
• Porsche 991.1 Carrera C4 3.4L (350Bhp) 2012-16
• Porsche 991.1 Carrera C4S 3.8L (400Bhp) 2012-16
• Porsche Cayman 2.9L 987C MKII 2009-12
• Porsche Cayman S / R 3.4L 987C MKII 2009-12
• Porsche Cayman 2.7L 981 2013-16
• Porsche Cayman S / GTS 3.4L 981 2013-16

Supported Engine Codes
MA1: MA1.01, MA1.02, MA1.03, MA1.04, MA1.20, MA1.21, MA1.22, MA1.23, MA1.70, MA1.71, MA1.75 MAB: MAB.03, MAB.04

Ideal for engine servicing, timing chain replacement, camshaft adjuster service and complete rebuilds.

What This Camshaft Timing Tool Kit Does

This professional tool set enables:

• Precise camshaft locking for accurate timing setup
  
• Correct chain tensioning during installation or replacement
  
• Accurate rotation and alignment of the camshaft timing gear oil regulator
• Secure crankshaft locking, ensuring true TDC position
  
• Safe removal and installation of camshaft adjusters
• Controlled adjustment of timing components during engine service
  
• Reliable positioning for timing chain, VVT and rebuild procedures

Perfectly suited for MA1/MAB engines, where even slight timing deviations can cause power loss, rough running or internal damage.

What’s Included in the Tool Set

A complete professional toolkit containing:

• Camshaft adjustment/fixing tool
• Pulley fixing tool
• Crankshaft rotating adapter
• Camshaft locking pins
• Crankshaft locking pin
• TDC positioning pin
• Accessories for chain tension & alignment

Why Camshaft Timing Systems Fail on Porsche MA1/MAB Engines

Modern Porsche engines rely on advanced VVT and multi-stage timing systems, which can fail due to:

• Timing chain stretch from age, heat and high RPM
  
• VVT (cam phaser) wear, affecting cam timing accuracy
  
• Tensioner degradation, causing rattle and timing deviation
  
• Improper timing after previous repairs without correct tools
  
• Oil contamination affecting chain lubrication and VVT function
  
• Thermal stress, leading to timing component movement

Symptoms include camshaft correlation errors, reduced performance, misfires, rough idle, power dips, or check-engine lights.

Why You Should Replace or Use a Precision Camshaft Timing Tool Kit

Using this dedicated Porsche timing tool kit ensures:

• Exact camshaft and crankshaft alignment
• Safe VVT adjuster servicing
• Correct chain tension and timing setup
• Protection from piston-to-valve contact
• Professional rebuild quality even for home workshops
  
• Reduced chance of timing errors and costly engine failure

For MA1/MAB engines, accurate tools are absolutely essential.

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

C4010

The product you are viewing cross references to these numbers

Crankcase head stud driver for Porsche All 911 964 993 996 / 997 GT3 & Turbo Models 1965-On



Double-nutting a head stud to install it into the engine case not only takes time, but can be stressful for the threads, and can lead to variations in stud depth (unless you are extra careful when removing the double nuts). Protect your hardware investment and speed installation by using STOMSKI RACING's Head Stud Driver.

Made from black oxide finished hardened steel, this uniquely designed tool threads onto the head stud but will not clamp on to the threads, making installation faster, gentler, and more accurate.

Cylinder press for Porsche 996/997 GT3



Here is the ultimate tool to press the cylinders in and out of the water jacket on GT3, Turbo, and RS/RSR 996/997 engines.

This kit includes everything you need to safely, accurately, quickly, and conveniently perform this critical task.

Each kit contains:
• ring compressor (1 @102.7)*,
• Delrin cylinder spacers (4),
• complete stainless steel/AL press,
• aluminum cylinder bushing,
• bolts, and a sturdy storage case.

*100mm ring compressor (1) available separately.

Cylinder press for Porsche 996/997 GT3 with 100mm ring compressor



Here is the ultimate tool to press the cylinders in and out of the water jacket on GT3, Turbo, and RS/RSR 996/997 engines.

This kit includes everything you need to safely, accurately, quickly, and conveniently perform this critical task.

Each kit contains:
• ring compressor (1 @100),
• Delrin cylinder spacers (4),
• complete stainless steel/AL press,
• aluminium cylinder bushing,
• bolts, and a sturdy storage case.

DigiDix™ Digital degree wheel sam timing system for Porsche all M96, M97, and DFI engines.



A revolution in cam timing, STOMSKI RACING's DigiDix™ - Digital Degree Wheel - provides the most accurate, easy to use degree wheel ever. No more awkward setups, questionable readings, convoluted pointers, or imprecise measurements. With DigiDix™, simply bolt the sensor/adapter to the flywheel-end of the crankshaft and secure the torsion arm. Setup time is less than one minute. You are now ready to measure crank rotation to one tenth (.1) of one degree accuracy and repeatability.

DigiDix™ includes a 3 foot cable for easy reading anywhere on the engine and fits all M96, M97, and DFI engines. Storage case included.

STOMSKI RACING - "reinventing the wheel."

Heat exchanger pressure tester for Porsche 996/997 Turbo/GT2/GT3



Some GT3 engines are experiencing oil-to-coolant intermixing. While there are potentially several sources of intermixing, faulty engine mounted oil-to-coolant heat exchangers are a major source. Now, with STOMSKI RACING's GT3 Heat Exchanger Tester set, you can confirm if your exchanger is faulty and needs replacing, or whether the source of the contamination is elsewhere. This set of CNC machined gauge blocks is machined from 6061 aluminum for years of service and comes complete with all gauges, seals, valves, and hardware.

Also works on the GT2 and 996/997 TT engines as well.

Heat exchanger tester for Porsche 996 / 997



Some M96/M97 engines are experiencing oil-to-coolant intermixing. While there are potentially several sources of intermixing, faulty engine mounted oil-to-coolant heat exchangers are a major source. Now, with STOMSKI RACING's M96 Heat Exchanger Tester, you can confirm if your exchanger is faulty and needs replacing, or whether the source of the contamination is elsewhere. This high-quality tool is CNC machined from 6061 aluminum, anodized for years of service, and comes complete with all gauges, seals and hardware.