IRP Connecting Rod Set 911 3,0L SC (1978-83) - Custom Age 625 Bolt´s

IRP High-Performance Connecting Rods for Porsche 911 3,0L SC (1978-83) with "Custom Age 625" bolts

Product Description

IRP High-Performance Connecting Rods are among the top choices in professional motorsport. Manufactured from specially developed, high-strength alloys, these rods deliver maximum stability, precision, and reliability — ideal for tuned and high-output Porsche engines. These version includes the upgraded bolts from IRP named "Custom Age 625".
Each IRP connecting rod is forged from premium material and fully CNC-machined for exact dimensional accuracy and an exceptional surface finish. After heat treatment, every rod undergoes Magnaflux inspection and hardness testing to ensure flawless quality.
All rods are weight-matched, shot-peened, and designed to provide outstanding strength, durability, and long-term performance — perfect for motorsport, track use, or high-performance street builds.

Material Options

IRP Golden Line:
Manufactured from 34CrNiMo6 steel with a tensile strength of 1,400 MPa. Offers an excellent balance of strength, weight, and longevity — ideal for performance-enhanced street or lightly modified engines.

Custom Age 625 Bolts:
High End bolts to multiple the strength of your rods, perfect for high RPM Engines.

IRP Platinum Edition:
Made from 36NiCrMo16 steel with a tensile strength of 2,100 MPa, featuring two Sub-Zero (cryogenic) treatments for maximum structural stability and fatigue resistance. Designed for extreme power levels and professional racing environments.

Key Features

• Motorsport-proven IRP quality
• Fully CNC-machined for perfect accuracy
• Magnaflux crack and hardness inspection
• Shot-peened and precision-balanced
• Two high-strength material options (Golden Line & Platinum Edition)