Porsche 924S 944 968 H-beam connecting rod set of 4

This set consists of four lightweight H-beam connecting rods for Porsche 924S, 944 and 968 engines. The connecting rods have a center-to-center length of 150 mm and are supplied with ARP connecting rod bolts.

The H-beam connecting rods are suitable for a professional engine rebuild and for building a stronger performance engine. Each set is weight-selected and balanced with a maximum difference of 0.2 grams between rods.

The connecting rods can be combined with our separately available lightweight wrist pins measuring 24 x 66,85 mm. The wrist pins are not included with this connecting rod set.

Combined with the lightweight wrist pins, the reciprocating mass is significantly reduced. The original connecting rod with wrist pin weighs approximately 989 grams per cylinder. The new H-beam connecting rod with lightweight wrist pin weighs approximately 753 grams.

This results in a weight saving of approximately 236 grams per cylinder and coincidentally exactly 944 grams per four-cylinder engine.

Suitable for

• Porsche 924S: all 2.5 engines

• Porsche 944: all 2.5 and 2.7 engines

• Porsche 944 S: 2.5 16V

• Porsche 944 S2: 3.0 16V

• Porsche 944 Turbo: all 2.5 Turbo engines

• Porsche 968: 3.0, model years 1992-1995

• Set size: four connecting rods

One set of four connecting rods is required for a Porsche 924S, 944 or 968.

Replaces part number

Depending on the Porsche model and engine type, these H-beam connecting rods can be used as a replacement for or alternative to:

• OEM number: 94410300802

• Alternative format: 944 103 008 02

• Reference number: 94410300101

• Alternative format: 944 103 001 01

• Reference number: 94410300800

• Alternative format: 944 103 008 00

• Reference number: 94410300804

• Alternative format: 944 103 008 04

• Product code: L1191

Important fitment information

The connecting rods have a center-to-center length of 150 mm and a wrist pin bushing for a wrist pin with a diameter of 24 mm.

The matching lightweight wrist pins measure 24 x 66,85 mm. These wrist pins are available separately and are not supplied with this connecting rod set.

The connecting rods must be installed as a complete, mutually weight-matched set. Do not combine a single new H-beam connecting rod with used original connecting rods without careful inspection.

Benefits of this product

• Complete set of four H-beam connecting rods.

• Suitable for Porsche 924S, 944 and 968.

• Includes ARP connecting rod bolts.

• Center-to-center length of 150 mm.

• Suitable for wrist pins with a diameter of 24 mm.

• Balanced with a maximum weight difference of 0.2 grams between rods.

• Made from 40CrNiMoA
  

• Shot-peened for improved resistance to alternating loads.

• Hardness of HRC 33-38.

• New wrist pin bushing instead of a worn original bushing.

• Lighter construction than the original connecting rods.

• Suitable for engine rebuilding and performance engine building.

• Up to 944 grams of weight saving per four-cylinder engine when combined with the slim-fit wrist pins.

• Eliminates the need to straighten and rebush damaged original connecting rods.

• New lightweight wrist pins are available separately.

The measured result may vary by engine and depends on the engine condition and the other installed components.

When should the connecting rods be replaced?

Replacement is advisable when:

• The engine is being completely rebuilt; this is your chance!

• An original connecting rod is bent or twisted.

• The wrist pin bushing is worn.

• There is play between the wrist pin and connecting rod.

• A connecting rod has been damaged by a defective connecting rod bearing.

• The engine is being built for higher loads.

• The original wrist pins are worn or damaged.
  

A bent connecting rod or worn wrist pin bushing is not always visible to the naked eye. Therefore, have the original connecting rods professionally measured during an engine rebuild.

Installation information

The connecting rods connect the pistons to the crankshaft. The engine must be largely or completely disassembled for installation.

During installation, check:

• The diameter and roundness of the crankshaft journals.

• Inspect or replace the connecting rod bearings.

• The fit of the wrist pins.
  

• The direction in which the pistons are installed.

• The weight of each complete piston, wrist pin and connecting rod assembly.
  

• The size and roundness of the big-end bearing
  

• Tightening torque 75Nm

When installing in a Porsche 928, the crankshaft must be rebalanced based on the actual weights of the new components.

Technical details

• Product: H-beam connecting rods

• Application: Engine rebuilding and performance engine building

• Suitable for: Porsche 924S, 944 and 968

• Set contents: Four H-beam connecting rods with ARP bolts

• Wrist pins included: No

• Required for four-cylinder engine: One set

• Required for Porsche 928 V8: Two sets

• Center-to-center length: 150 mm

• Wrist pin diameter: 24 mm

• Size of matching slim-fit wrist pin: 24 x 66,85 mm

• Material: 40CrNiMoA steel

• Surface treatment: Shot-peened

• Hardness: HRC 33-38

• Connecting rod balancing: Maximum difference of 0.2 grams between rods

• Weight of original connecting rod with wrist pin: Approximately 989 grams

• Weight of H-beam connecting rod with lightweight wrist pin: Approximately 753 grams

• Weight saving per cylinder: Approximately 236 grams

• Weight saving per four-cylinder engine: Approximately 944 grams

• Fasteners: ARP connecting rod bolts

• Condition: New

• Product code: L1191

Frequently asked questions

Does this set fit all Porsche 944 engines?

Yes. The connecting rods are suitable for all Porsche 944 engine blocks. This includes the Porsche 944 2.5, 2.7, 944 S, 944 S2 and 944 Turbo.

Does this set fit the Porsche 924S?

Yes. The connecting rods are suitable for all Porsche 924S engine blocks.

Does this set fit the Porsche 968?

Yes. The connecting rods are suitable for the Porsche 968 3.0 from model years 1992 through 1995.

Are the lightweight wrist pins included?

No. The lightweight wrist pins are sold separately. The wrist pins measure 24 x 66,85 mm or 64,85.

How much weight is saved?

The original connecting rod with wrist pin weighs approximately 989 grams. The H-beam connecting rod with lightweight wrist pin weighs approximately 753 grams.

This results in a saving of approximately 236 grams per cylinder and 944 grams per four-cylinder engine.

Can I install these connecting rods myself?

Installation requires complete or partial engine disassembly and precise measurements. We recommend installation by an experienced engine rebuilding company or Porsche specialist.