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Porsche > 964 (911) (1989-1994) > 964 (911) RS 3.8L 1991-93 > Engine Tuning >

Engine Rods and Bolts

DISPLAYING 1 to 3 (of 3 products)
Connection rod (Con rod) bolts and nuts (SET OF 12). Porsche 964 / 993 - 204-6005, 99310317604, 99610317670, 99310317605, 99310317402, 99310317403, 96410317600, 96410317605, 93010317400, 93010317403
2
Connection rod (Con rod) bolts and nuts (SET OF 12). Porsche 964 / 993
96410317605/4
Product Information
Product Information
Connection rod bolts M9 and nuts. SET OF 12.

arp

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Related, superseded, cross reference or alternative numbers for comparison.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
204-6005
99310317604
99610317670
99310317605
99310317402
99310317403
96410317600
96410317605
93010317400
93010317403

The product you are viewing cross references to these numbers
Crankcase through bolt kit. Porsche 911 3.6L to 3.8L engines - 95910117302, 95910117301, 204-5406, 95910117200, 96410131302, 95910117303, 96410117400
1
Crankcase through bolt kit. Porsche 911 3.6L to 3.8L engines
95910117302/4
Product Information
Product Information
Crankcase through bolt kit. SET OF 11
Porsche 911 3.6L to 3.8L engines.

arp

Fits:
Porsche 964 3.6L
Porsche 993 3.6L

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Related, superseded, cross reference or alternative numbers for comparison.

95910117302
95910117302
95910117301
204-5406
95910117200
96410131302
95910117303
96410117400

The product you are viewing cross references to these numbers
Engine head studs, Set of 24. Porsche 911 / 964 / 993 1965-98 - 99310117051, 99310117053, 204-4206, 90110117203, 91110117200, 93010117000, 99310117054
2
Engine head studs, Set of 24. Porsche 911 / 964 / 993 1965-98
99310117054/4
Product Information
Product Information
Engine head studs. Set of 24 head studs with nuts and washers.

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Related, superseded, cross reference or alternative numbers for comparison.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
99310117051
99310117053
204-4206
90110117203
91110117200
93010117000
99310117054

The product you are viewing cross references to these numbers
DISPLAYING 1 to 3 (of 3 products)
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About Engine Rods and Bolts

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       

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