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You are here: Home > Connecting Rods > Probe Industries Steel Rods

Probe Industries offers six distinct Connecting Rod types to fit every level of performance to include H-Beam - 4340, Heavy Duty H-Beam - 4340, I-Beam - 4340, I-Beam Pro - 4340, Ultralight I-Beam - 4340 and Machined Beam - 5140 all with ARP rod bolts and the option to upgrade to ARP-2000. Select more info to find the Connecting Rod that is right for your application.

Select the Connecting Rod type below to explore the hundreds of Connecting Rods currently available.
Machined Beam - 5140

Probe Industries Machined Beam Connecting Rods are the high tech answer to hand polished connecting rods. A fully machined periphery provides a consistency of finish not possible with a hand finished beam. Built to withstand the brutal environments associated with virtually all high performance engines, CNC Beam Forged Steel rods are recommended for engines in bracket, oval track, and almost all street and strip applications.

  • Forged of 5140 Steel
  • Multi Stage Heat Treat
  • Over 500HP Capable
  • Shot Peened
  • ARP Wave Lock Bolts
  • Bronze Bush or Press Fit
  • Weight Balanced + 5 Grams
Lightweight I-Beam - 4340

Manufactured for high horsepower applications where strength is mandatory but a significant reduction in weight is desired, Probe Induistries Lightweight Steel Connecting Rods are manufactured of 4340 Steel which provide excellent strength to weight ratio and are about 50 grams lighter than most H-beams. The Lightweight features 7/16 ARP cap screws and are doweled to eliminate cap walk.

  • Forged of Quality 4340 Steel
  • Lightweight I-Beam Design
  • Shot Peened
  • Bronze Bushed
  • ARP 12pt Cap Screws
  • Weight Balanced + 2 Grams
H-Beam - 4340

Probe Industries H-Beam Steel Rods are precision forged of select 4340 aircraft quality steel, vacuum degassed to remove impurities. They are forged in two pieces to insure proper grain flow, then all surfaces are CNC machined into a track proven H-Beam design and shot-peened to relieve stress. Silicon Bronze bushings are then installed for increased wear resistance and precision ground alignment sleeves are added to the rod cap to prevent cap walk under high horsepower loads.They are Drilled to provide pin oiling.

  • Forged of Quality 4340 Steel
  • High Strength H-Beam Design
  • Shot Peened
  • Bronze Bushed
  • ARP 12pt Cap Screws
  • Weight Balanced + 2 Grams
Heavy Duty H-Beam - 4340 (Center Oiled)

Probe Industries H-Beam Steel Rods are precision forged of select 4340 aircraft quality steel,vacuum degassed to remove impurities. They are forged in two pieces to insure proper grain flow, then all surfaces are CNC machined into a track proven H-Beam design and shot-peened to relieve stress. Silicon Bronze bushings are then installed for increased wear resistance and precision ground alignment sleeves are added to the rod cap to prevent cap walk under high horsepower loads. They are center drilled to provide forced oiling to the wrist pin. H/D H-Beam rods feature ARP-2000 rod bolts.

  • Forged of Quality 4340 Steel
  • High Strength H-Beam Design
  • Shot Peened
  • Bronze Bushed
  • Center Drilled
  • ARP-2000 Cap Screws
  • Weight Balanced + 2 Grams
Ultra Lite I-Beam - 4340

Specifically designed for use in very high rpm engines, two barrel oval track, and drag motors with no power adders. They are designed to provide maximum performance with a minimum of rotating mass. Probe Industries Ultralight Rods are painstakingly manufactured from premium 2 piece 4340 steel forgings, which will insure proper grain flow for maximum strength. They are then fully machined on the latest in CNC equipment to ensure dimensional accuracy. Lastly ARP 8740 rod bolts are installed through the doweled rod caps.

  • Forged of Quality 4340 Steel
  • Ultra-LiteI-Beam Design
  • Shot Peened
  • Bronze Bushed
  • ARP 12pt Cap Screws
  • Weight Balanced + 2 Grams
I Beam "Pro" - 4340 (Liquidation)

Manufactured for high horsepower applications where strength is mandatory, Probe Industries I-Beam Pro Connecting Rods are manufactured of 4340 Steel which provides excellent strength to weight ratio and are beefed up at the parting line for superior strength. The Pro features 7/16 ARP cap screws and are doweled to eliminate cap walk.

  • Forged of Quality 4340 Steel
  • Lightweight I-Beam Design
  • Shot Peened
  • Bronze Bushed
  • ARP 12pt Cap Screws
  • Weight Balanced + 2 Grams