Description
Overview
The Skunk2 Alpha Series Connecting Rods are high-performance engine internals engineered for the BMW B58 engine family — the same 3.0 L turbocharged inline-6 found in modern Toyota GR Supra models. Designed for enthusiasts building stronger engines with higher power levels, these rods deliver outstanding strength, durability, and precision balance.
Skunk2 has a long heritage in performance parts engineering, and the Alpha Series rods reflect decades of development in strengthening engine internals. With thoughtful design, stress-relieved materials, and precision manufacturing, these connecting rods are ideal for enthusiasts looking to build a stronger bottom end capable of supporting elevated power levels.
Key Features
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H-Beam Construction: Precision CNC-machined from high-strength aircraft-grade 4340 alloy steel forgings for exceptional strength-to-weight performance.
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Heat Treated & Shot Peened: Each rod undergoes heat treating and shot peen stress relief to increase fatigue resistance and longevity under high RPM and power conditions.
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Bronze Wrist Pin Bushings: Factory installed bronze bushings improve wear characteristics and help ensure smooth piston pin movement.
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Forced Pin Oiling: Optimized lubrication design to support enhanced durability in performance applications.
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High-Strength Fasteners: Includes precision ARP2000 rod bolts rated over 220,000 psi to maintain clamping integrity under load.
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Precision Balanced: Rods are matched to within +/- 1 gram for smooth operation and reduced vibration in high-revving builds.
Specifications
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Set Quantity: 6 connecting rods (complete set)
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Approx. Weight: 688g per rod
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Center-to-Center Length: 140.80mm
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Big End Dimensions: 53.60mm bore × 23.88mm width
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Small End Dimensions: 22.00mm bore × 20.90mm width
Compatibility
- 2020+ GR Supra w/B58 3.0L
- BMW Z4 (G29)
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