What is the primary benefit of using 4340 chromoly steel for these connecting rods?

4340 chromoly steel is chosen for its exceptional strength, toughness, and resistance to fatigue. This makes these connecting rods well-suited to handle the increased cylinder pressures and combustion forces found in high-performance Opel C20XE engines.

What does 'WMC Bolt' mean in the product name?

WMC stands for Weld-Forged, Machined, and Certified. This indicates that the bolts included with these connecting rods have undergone a rigorous manufacturing and certification process to ensure they meet Carrillo's high standards for strength and reliability.

Are these connecting rods balanced from the factory?

While Carrillo manufactures these rods to tight tolerances, it is highly recommended to have the entire rotating assembly, including these connecting rods, professionally balanced by a machine shop. This ensures optimal engine operation and longevity, especially in performance applications.

Carrillo Pro-SA Connecting Rods SCR5453-4

Name: Carrillo Opel C20XE Pro-SA 3/8 WMC Bolt Connecting Rods
Brand: Carrillo
SKU: carrillo-carrillo-opel-c20xe-pro-sa-3-8-wmc-bolt-connecting-rods-t14-254977
Price: 1269.70 USD
Availability: BackOrder

Carrillo Opel C20XE Pro-SA 3/8 WMC Bolt Connecting Rods

$1269.70

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Carrillo Pro-SA Connecting Rods for Opel C20XE engines. Well-built for high-performance builds.

Key Features

Fits Opel C20XE engines.
Forged from high-strength 4340 chromoly steel for durability.
Features Carrillo's refined I-beam design for a strong yet lightweight profile.
Includes 3/8 inch WMC (Weld-Forged, Machined, and Certified) bolts for secure assembly.
Designed to handle the stresses of high-performance engine builds.
Manufactured to tight tolerances for proper bearing alignment and oil clearance.

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Product Details

Carrillo Pro-SA connecting rods are forged from high-strength 4340 chromoly steel, a material known for its excellent toughness and fatigue resistance, making them a solid choice for high-performance Opel C20XE engine builds. These rods feature a unique I-beam design that Carrillo has refined over years of racing experience, balancing strength with weight savings. The Pro-SA series specifically uses 3/8 inch WMC (Weld-Forged, Machined, and Certified) bolts, which are a critical component for ensuring the rod can handle the extreme stresses of an engine operating at higher RPMs and power levels than stock.

The Pro-SA rods are designed to be a direct replacement for your factory connecting rods, simplifying the installation process during an engine rebuild. Carrillo's meticulous manufacturing process ensures that each rod meets tight tolerances for straightness and big-end bore diameter, which is crucial for proper bearing alignment and oil clearance. This attention to detail helps reduce friction and wear, contributing to the overall longevity and reliability of your engine, especially when you're pushing its limits. The 4340 chromoly steel construction means these rods can withstand significant cylinder pressure and combustion forces.

When building a performance C20XE engine, the connecting rods are one of the most critical components to upgrade. These Carrillo Pro-SA rods are a well-built option that offers a significant improvement over stock components. They are designed to work with standard or slightly modified crankshafts and pistons, but it's always recommended to consult with your engine builder or a performance specialist to ensure compatibility with your specific build plans. Proper balancing of the rotating assembly is also highly recommended when installing performance connecting rods like these.