Connecting Rods - 4Cyl

Manley’s Turbo Tuff® I-Beam Connecting Rods represent the epitome of precision, performance, and quality. Engineered with meticulous attention to detail and a finely tuned manufacturing process, these rods are a testament to our commitment to excellence. Elevate your engine’s capabilities and achieve outstanding results with these exceptional connecting rods.
Center To Center Length: 5.433 in. – Big End Bore: 1.890 in. – Pin Bore: 0.8281 in. (21mm pin) – 3/8″ ARP 625+ Bolts – Approx. HP Rating: 1000+
Manley Connecting Rod, ROD-ACURA 1.8 VTEC T/T

• Designed for ultimate performance with superior materials: forged 4340 or 300M vacuum degassed steel alloys
• NHRA Legal Certification for some SKUs – Stock and Super Stock
• Versatile Weight Options: Tour Lites, Light, Standard, Heavy

When it comes to H-Beam connecting rods, not all are created equal. Manley’s H-Beam Series stands out as a superior choice, offering exceptional quality at an economical price point. These connecting rods are meticulously crafted to meet the same high-quality standards as our renowned Sportsmaster? and Pro Series rods.
Center To Center Length: 5.233 in. – Big End Bore: 1.890 in. – Pin Bore: 0.7881 in. (20mm Pin) – 3/8″ ARP 2000 Bolts – Approx. HP Rating: 600+
Manley Connecting Rod, ROD-MAZDA MIATA 1.6/1.8L B6/BP H/B

• Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist, is treated with utmost seriousness to deliver connecting rods of the highest quality.
• Exceptional Performance: Manley’s H-Beam rods are designed to outperform others on the market, giving you a competitive advantage on the track.
• Flexible Bolt Options: Tailor your connecting rods to your specific requirements with a choice of ARP 8740 or ARP 2000 bolts.
• Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.

When it comes to H-Beam connecting rods, not all are created equal. Manley’s H-Beam Series stands out as a superior choice, offering exceptional quality at an economical price point. These connecting rods are meticulously crafted to meet the same high-quality standards as our renowned Sportsmaster? and Pro Series rods.
Center To Center Length: 5.927 in. – Big End Bore: 2.166 in. – Pin Bore: 0.8868 in. (22.5mm Pin) – 3/8″ ARP 2000 Bolts – Approx. HP Rating: 600+
Manley Connecting Rod, ROD-MAZDA 3 MZR 2.3L DISI H/B

• Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist, is treated with utmost seriousness to deliver connecting rods of the highest quality.
• Exceptional Performance: Manley’s H-Beam rods are designed to outperform others on the market, giving you a competitive advantage on the track.
• Flexible Bolt Options: Tailor your connecting rods to your specific requirements with a choice of ARP 8740 or ARP 2000 bolts.
• Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.

When it comes to H-Beam connecting rods, not all are created equal. Manley’s H-Beam Series stands out as a superior choice, offering exceptional quality at an economical price point. These connecting rods are meticulously crafted to meet the same high-quality standards as our renowned Sportsmaster? and Pro Series rods.
Center To Center Length: 5.137 in. – Big End Bore: 2.165 in. – Pin Bore: 0.9063 in. (23mm Pin) – 3/8″ ARP 2000 Bolts – Approx. HP Rating: 600+
Manley Connecting Rod, ROD-SUBARU EJ 18/20/22 H/B

• Attention to Detail: Every aspect, from final hone size to thread detail, bend, and twist, is treated with utmost seriousness to deliver connecting rods of the highest quality.
• Exceptional Performance: Manley’s H-Beam rods are designed to outperform others on the market, giving you a competitive advantage on the track.
• Flexible Bolt Options: Tailor your connecting rods to your specific requirements with a choice of ARP 8740 or ARP 2000 bolts.
• Exacting Tolerances: Our H-Beam rods are finished to exacting tolerances to ensure precision and performance.

Manley’s Turbo Tuff® I-Beam Connecting Rods represent the epitome of precision, performance, and quality. Engineered with meticulous attention to detail and a finely tuned manufacturing process, these rods are a testament to our commitment to excellence. Elevate your engine’s capabilities and achieve outstanding results with these exceptional connecting rods.
Center To Center Length: 5.137 in. – Big End Bore: 2.165 in. – Pin Bore: 0.9063 in. (23mm Pin) – 3/8″ ARP 2000 Bolts – Approx. HP Rating: 1000+
Manley Connecting Rod, ROD-SUBARU WRX EJ20/STi EJ25

• Designed for ultimate performance with superior materials: forged 4340 or 300M vacuum degassed steel alloys
• NHRA Legal Certification for some SKUs – Stock and Super Stock
• Versatile Weight Options: Tour Lites, Light, Standard, Heavy

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

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; 134.35mm Length; 505 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
• Fatter H-beam Design Without Drastic Weight Increase
• Pin End Compatible w/Most Pistons w/o Machining
• Shot-Peened For Reduced Fatigue
• 3/8-in. ARP2000/Skunk2 Bolts
• Bronze Wrist Pin Bushings
• Magna-flux Inspected
• Balanced +/- 1 Gram
• Weight 523 Grams
• Length 134.35mm
• Heat Treated
• FEA Analyzed