Skunk2 Alpha Series BRZ / FRS Connecting Rods – Forged 4340 Chromoly Steel, H-Beam Design, Rated for 900 HP

Alpha Series Rods are forged from select 4340 chromoly steel and feature an H-beam design, resulting in the ultimate strength-to-weight ratio. 4340 chromoly is one of the strongest materials available, however, not all 4340 chromoly is the same. As such, Skunk2 relies on extensive material testing and works closely with its foundry to produce high-quality rods at an affordable price. Comprehensive heat-treating, tempering, and shot-peening processes together ensure that each Alpha Series Rod remains consistent and strong. Finally, each rod is magna-fluxed to ensure integrity and that each process has been completed thoroughly and according to Skunk2's rigid specifications. Skunk2's engineers spent nearly three years developing and testing its H-beam rod design. The results are one of the strongest beam configurations available, capable of handling more than 900 hp. Engineers made use of FEA (Finite Element Analysis) to determine high-stress points and implemented features to reduce wear and increase strength. Skunk2's straight design distributes stress across a larger area when compared to tapered rods, providing additional support where necessary. Alpha Series Rods are manufactured from two-piece forgings, resulting in optimal grain orientation along the rod cap for increased strength. By orienting the metal's grain in the direction of stress along the rod cap, perpendicular to the stress exerted along the beam, strength is significantly increased. Skunk2's two-piece forgings provide a precision-tight fit between the rod's cap and its beam without resorting to the brittle materials required by other processes. Alpha Series Rods also feature dual oil passages at their pin ends, providing additional lubrication and cooling, which leads to an even stronger, more durable rod. Unlike other designs, Skunk2's carefully positioned, offset oil passages help deliver lubrication around the entire wrist pin, during each phase of the engine cycle. Alpha Series Connecting Rod Set; 129.38mm Length; 502 Grams; Rated to 900HP; H-Beam; Incl. 3/8 ARP2000 Bolts/Lube; 4340 Chromoly Steel; Set of 4;

• Dual-Pin Oil Passages For Increased Lubrication And Strength
• Shot-Peened For Reduced Fatigue
• 3/8-in. ARP2000/Skunk2 Bolts
• Bronze Wrist Pin Bushings
• Small End Width 21.41
• Magna-flux Inspected
• Big End Width 21.41
• Balanced +/- 1 Gram
• Weight 527 Grams
• Length 129.39mm
• Small End 22mm
• Big End 53mm

The Skunk2 Alpha Series BRZ / FRS Connecting Rods are engineered for high-performance engines, forged from premium 4340 chromoly steel and featuring an advanced H-beam design for optimal strength-to-weight ratio. These rods have undergone extensive material testing and are meticulously manufactured through comprehensive heat-treating, tempering, and shot-peening processes, ensuring consistent strength and durability. Each rod is magna-fluxed to verify structural integrity, providing confidence in their reliability for demanding applications. Developed over nearly three years by Skunk2's engineering team, the Alpha Series rods utilize Finite Element Analysis (FEA) to identify high-stress zones and incorporate design features that reduce wear and enhance longevity. The straight H-beam configuration distributes stress evenly across a broader surface area compared to tapered designs, offering superior support during high-performance operation. Constructed from two-piece forgings, these rods feature an optimal grain orientation aligned along the stress-bearing areas of the cap, resulting in increased strength and improved fatigue resistance. Additionally, dual oil passages at the pin ends facilitate enhanced lubrication and cooling, which are critical for maintaining performance during extended high-RPM runs. The offset placement of these oil passages ensures comprehensive lubrication around the wrist pin during each engine cycle, reducing wear and increasing the overall lifespan of the components. The set includes four rods, each weighing approximately 18.6 ounces (527 grams), with a length of 5.1 inches (129.38 mm). Rated to handle over 900 horsepower, these rods are equipped with 3/8-inch ARP2000 bolts, bronze wrist pin bushings, and are balanced within ±1 gram for smooth operation. Designed specifically for 2013-2015 Subaru BRZ and Scion FR-S models, these rods are an ideal choice for high-performance build projects seeking durability, strength, and reliability in demanding conditions.

Features:

• Forged from high-grade 4340 chromoly steel for exceptional strength and durability

• H-beam design provides optimal stress distribution and high power handling capacity

• Dual oil passages at pin ends enhance lubrication and cooling during engine operation

• Comprehensive heat treatment, tempering, and shot-peening processes ensure consistent quality

• Magna-fluxed inspection verifies structural integrity and quality assurance

• Two-piece forging construction aligns grain flow for increased strength and fatigue resistance

• Includes 3/8-inch ARP2000 bolts for secure fastenings

• Bronze wrist pin bushings reduce wear and improve longevity

• Balanced within ±1 gram for smooth engine performance

• Designed specifically for 2013-2015 Subaru BRZ and Scion FR-S models

Fitment:
2013 Scion FR-S Base
2013 Subaru BRZ Limited
2013 Subaru BRZ Premium
2014 Scion FR-S Base
2014 Subaru BRZ Limited
2014 Subaru BRZ Premium
2015 Scion FR-S Base
2015 Subaru BRZ Limited
2015 Subaru BRZ Premium
2015 Subaru BRZ Series.Blue
2016 Scion FR-S Base
2016 Subaru BRZ Limited
2016 Subaru BRZ Premium
2016 Subaru BRZ Series.HyperBlue
2017 Subaru BRZ Limited
2017 Subaru BRZ Premium
2017 Toyota 86 Base
2017 Toyota 86 Special Edition
2018 Subaru BRZ Limited
2018 Subaru BRZ Premium
2018 Subaru BRZ TS
2018 Toyota 86 Base
2018 Toyota 86 GT
2019 Subaru BRZ Limited
2019 Subaru BRZ Premium
2019 Toyota 86 Base
2019 Toyota 86 GT
2019 Toyota 86 TRD Special Edition
2020 Subaru BRZ Limited
2020 Subaru BRZ TS
2020 Toyota 86 Base
2020 Toyota 86 GT

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1