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- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97

Fits:
Porsche 911 3.2 (84-89)
Porsche 911 Turbo 3.3 (78-89)
Porsche 964 C2 (90-94)
Porsche 964 C4 (89-94)
Porsche 964 RS (92-92)
Porsche 964 Turbo-Look (91-94)
Porsche 964 CUP-RACE (90-93)
Porsche 964 Turbo 3.3 (91-92)
Porsche 964 Turbo 3.6 (93-94)
Porsche 993 C2
Porsche 993 C4
Porsche 993 C2S
Porsche 993 C4S
Porsche 993 RS
Porsche 993 Turbo
Porsche 993 Turbo S
Porsche 993 GT2
Click 'Zoom in' for large parts diagram.
Diagram Ref No 13
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96410317605
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Porsche 911 3.6L to 3.8L engines.

Fits:
Porsche 964 3.6L
Porsche 993 3.6L
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95910117302
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
Engine case hardware set, titanium.
Air-cooled Porsche 911 complete engine case hardware kit in high-strength high-purity Titanium alloy.
Includes studs:
For 911
Ti Alloy studs x 57
12 Point Ti Alloy Lock Nuts x 57
For 964/993
Ti Alloy studs x 62
12 Point Ti Alloy Lock Nuts x 62
Porsche Motorsports employed titanium alloy engine case fasteners on many of their famous race cars, including the 904, 908, 935, 962, and some modern LMP2.

Fits:
Porsche 911 3.0ltr / 3.3ltr
Porsche 964
Porsche 993
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
Engine case through bolt set, titanium.
Kit Contents
Ti Alloy Studs x 11
Ti Alloy Washers x 22
Ti Alloy 12-point Nuts x 11
Porsche Motorsports employed titanium alloy engine case fasteners on many of their famous race cars, including the 904, 908, 935, 962, and some modern LMP2.

Fits:
Porsche 911
Porsche 964
Porsche 993
Air-cooled Porsche 911 engine case through bolts in high-strength high-purity Titanium alloy. Including studs, washers, and nuts.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SL-TB-
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
SET OF 24
Head stud kit for Porsche 2.0L-3.8L air-cooled engines
Fits:
Porsche 911 1965-89
Porsche 964 1989-94
Porsche 993 1994-98
Diagram Ref No 2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99310117054
The product you are viewing cross references to these numbers
Porsche Connecting Rods & Performance Bolts - High-Strength Engine Internals
Connecting Rods and Performance Bolts are critical engine internals responsible for transferring combustion forces from the pistons to the crankshaft while maintaining precise engine geometry under extreme load. In high-performance, tuned, or high-mileage Porsche engines, upgraded rods and bolts provide the strength and reliability required to safely handle increased power and RPM.
Available from Design911, this category includes high-strength Porsche connecting rods and performance-grade rod bolts engineered for demanding engine builds, rebuilds, and motorsport applications.
What Do Rods & Bolts Do?
Rods and bolts form the structural link between the piston and crankshaft, enduring immense forces every engine cycle.
Core Functions:
- Transfer combustion energy to the crankshaft.
- Maintain correct piston motion and alignment.
- Withstand tensile and compressive forces at high RPM.
- Secure the rotating assembly under extreme load.
- Support reliable operation in performance engines.
High-quality rods and bolts are essential for engine durability and safety.
Why Do Rods & Bolts Fail?
Standard factory rods and fasteners are designed for
original power levels and daily driving. Failures can occur due to:
- Increased cylinder pressure from tuning or forced induction.
- High RPM stretching standard rod bolts.
- Metal fatigue from heat cycling and age.
- Detonation causing shock loads through the rotating assembly.
- Reuse of torque-to-yield bolts during rebuilds.
Rod or bolt failure often results in catastrophic engine damage, including broken blocks or crankshaft failure.
Why Upgrade Rods & Bolts?
Upgraded rods and performance bolts are designed to exceed the limits of factory components.
Upgrade Benefits:
- Stronger forged steel or billet rod construction.
- High-tensile performance bolts for improved clamping force.
- Increased safety margin for high-output engines.
- Improved reliability for track, race, and tuned applications.
- Essential upgrade during engine rebuilds.
Upgrading rods and bolts protects the bottom end and enables safe power increases.
Highlights
- High-strength Porsche connecting rods and performance bolts
- Designed for tuned and motorsport engines
- Improved resistance to stretching and fatigue
- Ideal for engine rebuilds and power upgrades
- Proven reliability in high-load applications