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Related, superseded, cross reference or alternative numbers for comparison.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 Timing Set for Porsche 986 / 987 Boxster & Cayman and 996 / 997 – Precision Tools for Accurate Camshaft Alignment

Accurate camshaft alignment is critical when servicing, rebuilding or timing the flat-six engines found in Porsche 986/987 Boxster & Cayman and 996/997 911 models. This engine timing set provides the precision tools required to correctly position camshafts and crankshafts, ensuring perfect timing during reassembly, chain tensioner replacement, cylinder head work, or any major engine repair.

Designed to maintain exact engine timing specifications, this tool kit eliminates guesswork and prevents costly misalignment that can lead to poor running, misfires or engine damage.

Built for workshop professionals and skilled enthusiasts, this is an essential toolset for anyone performing timing work on M96 and M97 Porsche engines.

Fits:

• Porsche Boxster 986 2.5L 1997-99
• Porsche Boxster 986 2.7L 1999-02
• Porsche Boxster S 986 3.2L 1999-02
• Porsche Boxster 986 2.7L 2003-04
• Porsche Boxster S 986 3.2L 2003-04
• 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 996 C2 3.4L 1997-08/01
• Porsche 996 C4 3.4L 1997-08/01
• Porsche 996 C2 3.6L 09/01-2005
• Porsche 996 C4 3.6L 09/01-2005
• Porsche 996 C4S 3.6L 09/01-2005
• Porsche 997 MK1 Carrera 2 3.6L 2005-08
• Porsche 997 MK1 Carrera 2S 3.8L 2005-08
• Porsche 997 MK1 Carrera 4 3.6L 2005-08
• Porsche 997 MK1 Carrera 4S 3.8L 2005-08
• 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 Cayman 2.7L 987C 2006-08
• Porsche Cayman S 3.4L 987C 2005-08
• Porsche Cayman 2.9L 987C MKII 2009-12
• Porsche Cayman S / R 3.4L 987C MKII 2009-12

Kit Contains 
1 x TDC Alignment Pin – Locks crankshaft at TDC.
1 x Camshaft Lock  – To establish the allocation between the intake and exhaust camshafts.
2 x Camshaft Supports – for retaining the camshafts in position with the valve cover removed.
2 x Camshaft Holding Tools  – Used to retain the camshafts before removing the valve cover and during reassembly. 
1 x Connecting Rod Centering Mandrel – Positions the small of the connecting rod in preparation for fitting the piston and wrist pin.
1 x Piston Pin Driver and Extensions – Used to insert the wrist pins.

What an Engine Timing Set Does

This specialist set enables accurate and safe engine timing by:

• Locking camshafts in the correct position during timing procedures
  
• Aligning crankshaft and camshaft timing marks with precision
  
• Ensuring correct valve timing, preventing piston-to-valve contact
  
• Assisting with chain tensioner installation and re-tensioning
  
• Supporting engine rebuild tasks, including head removal or IMS service
  
• Maintaining timing accuracy during belt, chain or component replacement

With precise camshaft positioning, the engine runs smoother, delivers optimal performance and maintains proper combustion cycles.

Why Engine Timing Components Fail or Require Adjustment

Porsche M96 and M97 engines rely on accurate timing to ensure performance and engine longevity. Over time, several factors can cause timing issues:

• Chain stretch or wear from high mileage
  
• Worn chain guides causing slack or timing deviation
  
• Failing tensioners, common in ageing engines
  
• Camshaft deviation errors triggered by worn components
  
• Incorrect timing after previous repairs when tools were not used
  
• IMS-related service procedures, requiring camshaft locking
  
• General rebuild work, where camshafts and chains are removed

Symptoms include rough idle, loss of power, misfires, check engine lights or tapping noises.

Why You Should Replace or Use a Proper Camshaft Alignment Tool Set

Using a precision-engineered timing set designed to exceed original accuracy standards ensures safe, correct and efficient engine service.

Benefits include:

• Prevents engine damage from incorrect timing
• Ensures precise valve timing and performance
• Reduces risk of piston-to-valve interference
• Speeds up major engine work with accurate alignment
• Essential for rebuilds, timing chain replacement or head gasket work
• Ideal for diagnosing cam deviation or timing-related engine faults
• Ensures repeatable, professional-quality results

For any major repair on a Boxster, Cayman, 996 or 997 engine, a proper timing set is essential.

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.

Engine stand for engine mount.



Fits:
Porsche 356
Porsche 911 912 F/G
Porsche 930
Porsche 914
Porsche 964
Porsche 993
Porsche 996 turbo/GT2/GT3
Porsche 997 turbo/GT2/GT3
The pickup tube is D=60mm in outer diameter

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

For the revision of your Porsche engine, we offer this engine mount. 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. Alternatively, you can use the engine mount to mount the engine to a workbench using a bearing block. We have the engine stands for all classic Porsches with and without a mounting stand in our program.

Notice: The colour of the part may differ from the colour shown.

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

6898

The product you are viewing cross references to these numbers