MAXPEEDINGRODS 72KQMR Steel Connecting Rods Bolts Conrod 4X GK5 L15B 142.5MM

( Brand: Maxpeedingrods ), ( Manufacturer Part Number: 72KQMR ), ( Part Type: Rod Bolt ), ( Big End Diameter: 43mm/1.693 ), ( Big End Width: 17.9mm/0.705 ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Center Length: 142.5mm/5.610 ), ( Fit For: For For Honda Gk5 L15b L15b2 For Fit Jazz ), ( Hp Rating: Around 600-800hp ), ( Material: Forged Sae 4340 Aircraft Chrome Moly Steel ), ( Notice: This Is Aftermarket Replcement Part ), ( Pin Diameter: 18mm/0.709 ), ( Pin Type: Bronzed Bushing Floating Pin ), ( Quantity: 4 Pieces Of X-beam Connecting Rods ), ( Surface Finish: Brand New ), ( Weight Tolerance: Balanced To / 1 Gram In Set )

Review MAXPEEDINGRODS 4x Steel Connecting Rods And Bolts Honda Gk5 142.5mm Conrod Con

The **Maxpeeding Rods 72KQMR 4x Steel Connecting Rod Bolts** are a premium, high-performance upgrade designed specifically for Honda s iconic **GK5 (L15B) engine**, offering unmatched strength, reliability, and precision for both street and track applications. Crafted from **Grade 5 steel**, these bolts feature a **4x (four-bolt) pattern**, which is a significant improvement over the stock two-bolt design, dramatically enhancing rigidity and reducing the risk of rod bolt failure under extreme stress. The **142.5mm length** ensures a perfect fit for the L15B s rod spacing, maintaining optimal torque distribution while minimizing flex during high-RPM operation or aggressive driving conditions. Engineered with **high-tensile strength and superior thread engagement**, these bolts eliminate the common issues associated with stock components, such as loosening under vibration or premature wear, making them an ideal choice for enthusiasts pushing their engines beyond factory limits. Whether you're running a **turbocharged, supercharged, or naturally aspirated** L15B setup, these bolts provide the critical reinforcement needed to handle increased cylinder pressures and torque without compromising structural integrity. The **precision-machined design** ensures a snug, interference-fit with the rod caps, reducing the likelihood of slippage or misalignment critical factors in maintaining engine longevity and performance. For those seeking a **direct bolt-on solution** that delivers professional-grade durability, the Maxpeeding Rods 72KQMR bolts are an indispensable component for any serious L15B build, offering a perfect balance of strength, ease of installation, and compatibility with aftermarket rod sets.

**Pros and Cons of Buying Maxpeeding Rods 72KQMR 4X Steel Connecting Rods Bolts for Honda GK5/L15B (142.5mm Conrod)**

### **Pros**

1. **Strength and Durability** Maxpeeding Rods are forged from high-quality 4340 chrome-moly steel, which is significantly stronger than stock rods. This reduces the risk of catastrophic failure, especially under high stress or forced induction applications. The 4X steel bolts (Grade 8 equivalent) provide superior clamping force and resistance to fatigue, making them ideal for aggressive driving or modified engines.

2. **Precision Engineering** These rods are designed with improved balance and reduced weight compared to stock rods, which can enhance engine smoothness and reduce vibration. The 142.5mm length matches the stock rod length, ensuring compatibility without requiring additional modifications.

3. **Compatibility with Performance Upgrades** The GK5/L15B engine is commonly found in turbocharged or supercharged applications (e.g., Honda NSX, S2000, or aftermarket builds). Maxpeeding Rods are well-suited for forced induction setups, where stock rods may struggle under increased cylinder pressures.

4. **Aftermarket Support and Reputation** Maxpeeding Rods is a well-known brand in the performance aftermarket, offering reliable components backed by customer support. The company provides detailed installation guides and technical specifications, which can be helpful for DIY enthusiasts.

5. **Cost-Effective Upgrade** While not the cheapest option, these rods offer a balance between price and performance. They are often more affordable than custom-built rods while still providing significant strength improvements over stock parts.

6. **Warranty and Quality Control** Reputable sellers of Maxpeeding Rods typically include warranties, and the parts are manufactured to strict tolerances, reducing the likelihood of defects.

---

### **Cons**

1. **Installation Complexity** Replacing connecting rods is a labor-intensive job that requires disassembling the entire engine, removing the crankshaft, and carefully installing the new rods. This is best left to experienced mechanics unless you have significant engine-building experience.

2. **Cost of Labor** If you don t perform the installation yourself, labor costs for a rod job can be high, often ranging from $1,000 to $2,500 depending on the shop and location. This can make the upgrade more expensive than initially anticipated.

3. **Potential for Overkill** If your engine is not heavily modified or stressed (e.g., stock turbo or mild supercharger), the stock rods may still be adequate. Upgrading to Maxpeeding Rods may be unnecessary unless you re pushing the engine to its limits or planning future modifications.

4. **Compatibility with Stock Components** While the rods match the stock length, other components like pistons, crankshaft, and oil passages must be compatible. If you re using aftermarket pistons or a custom crank, ensure everything aligns properly to avoid issues.

5. **Risk of Improper Installation** If the rods are not installed correctly (e.g., incorrect torque, misalignment, or improper gapping), it can lead to premature wear or failure. This underscores the importance of following the manufacturer s guidelines and using a torque wrench.

6. **Limited Customization** Unlike custom-built rods, Maxpeeding Rods are not tailored to specific engine builds. If you need very specific dimensions or materials (e.g., titanium or exotic alloys), these rods may not meet those requirements.

---

### **Conclusion**

Maxpeeding Rods 72KQMR 4X steel connecting rods and bolts are a strong, reliable upgrade for the Honda GK5/L15B engine, particularly for enthusiasts running forced induction or aggressive power levels. They offer significant strength improvements over stock rods, precise engineering, and compatibility with performance applications. However, the installation is complex and labor-intensive, and the upgrade may not be necessary for stock or mildly modified engines.

If you re planning to push your engine beyond stock limits whether with a turbo, supercharger, or high-performance tuning they are a worthwhile investment. For stock or lightly modified engines, the cost and effort may not justify the upgrade.

### **Recommendation**

- You re running a turbocharger, supercharger, or nitrous oxide.

- You re building a high-performance engine or plan to in the future.

- You have the mechanical skill or access to a trusted engine builder to perform the installation.

- Your engine remains stock or is only mildly modified.

- You re not comfortable with the complexity of a rod job.

- You re on a tight budget and other upgrades (e.g., pistons, crankshaft) are higher priorities.

For best results, pair these rods with high-quality pistons, a matched crankshaft, and proper lubrication (e.g., synthetic oil with high viscosity). Always follow the manufacturer s torque specifications and consult with an experienced mechanic if unsure about the installation process.

Details:

For Honda GK5 L15B L15B2 for FIT Jazz. All big and small ends are finished with SUNNEN honing machine, - Precision alignment sleeves positively locate the rod cap, maintaining end bore size eliminating cap walk, 100% X-rated, sonic tested , Multi-stage heat treated, Shot preened to relieve stress, Come bronzed bushing suitable for floating piston pin. Opening Hours: 7x24. V PRODUCT TEST AND ISO 9001 CERTIFIED, Type: Forged 4340 aircraft chrome moly quality steel for racing, X-beam Conrod Quantity: 4 Pieces a set, Bolts: Including 5/16 ARP 2000 bolts, Note: Extra cost upgrading to L19 Bolts Size: 5/16, Tolerance: Balanced /- 1 gram in Piston Bolt Hole: -4/1000mm, Strength of the fastening PSI: 220,000/230,000 PSI Torque: 48ft 65 NM, warranty: Year warranty any manufacture defect, Advertised Horsepower Rating:400HP/set, Top acceleration: 8000rpm.

part #: 72kqmr prices

• $200.00-$408.99

specifications pistonrinro:

• for makes: Honda
• brand: Maxpeedingrods
• mpn: 72kqmr
• part type: Rod Bolt
• big end diameter: 43mm/1.693
• big end width: 17.9mm/0.705
• california prop 65 warning: California Prop 65 Warning
• center length: 142.5mm/5.610
• fit for: For For Honda Gk5 L15b L15b2 For Fit Jazz
• hp rating: Around 600-800hp
• material: Forged Sae 4340 Aircraft Chrome Moly Steel
• notice: This Is Aftermarket Replcement Part
• pin diameter: 18mm/0.709
• pin type: Bronzed Bushing Floating Pin
• quantity: 4 Pieces Of X-beam Connecting Rods
• surface finish: Brand New
• weight tolerance: Balanced To / 1 Gram In Set

returns pistonrinro:

• time: 30 Days
• paid by: Seller
• policy: Returns Accepted

general pistonrinro:

• condition: New
• Car Truck Parts Accessories > Engines Engine Parts > Connecting Rods Parts

payments pistonrinro:

• other
• wallet: Apple-pay
• credit card: Mastercard

shipping pistonrinro:

• transit: 4-7 Days
• cost: $0.00
• service: FedEx Ground / FedEx Home Delivery
• type: Fixed
• class: Standard
• carrier: FedEx

seller pistonrinro:

• city: Houston, Texas
• rating: 98.9%
• # reviews: 1807

offer pistonrinro:

• quantity: 1
• availability: In Stock
• best offers: True
• started: March 7, 2026
• options: Ship-to-home
• sold: 0

Maxpeedingrods 72KQMR Is Similar To:

• Maxpeedingrods Rgo24q Titanizing Racing 4340 Connecting Rods For Toyota Auris E180 Nr 8nr-fts 1.2t (52.1% similar) 7TH, . All big and small ends are finished with sunken honing machine, - precision alignment sleeves positively locate the rod cap, maintaining end bore size eliminating cap walk, 100% x-rated, sonic tested , multi-stage heat treated, shot preened to relieve stress, come bronzed bushing suitable for...(August 12th, 2023)
• Maxpeedingrods Sl8ozy 8 Pcs En24 4340 Forged Connecting Rods Arp 8740 Bolts For Chevrolet Small Block (55.4% similar) 215,000-220,000 psi. Shot-preened finish to remove potential for stress risers, 6.HIGH precision CBC machined,precision rod cap alignment dowels, 7.BORES finished /- .01MM, 8.BALANCED within 1PER rod, a weak rod bolt in a racing engine means catastrophic disaster and will put your life at risk. Each...(August 15th, 2023)
• Maxpeedingrods Qp7i3h 4x Titanize Connecting Rods En24 4240 For Volkswagen Audi 1.4 Tsi tfsi Ea211 (56.3% similar) For Volkswagen pasta RSI 3G5, 3G2, 3C5, 3C2, 365, 362 1.4. 100% x-rated, sonic tested and . For Volkswagen for Audi 1.4 RSI/TVs EA211 engine. We established cooperation's with em tron, mote, link, cartel, him, etc. Maxpeedingrods always follow the development concept that success derives from ...(August 17th, 2023)
• Maxpeedingrods 0y7otf Connecting Rods For Nissan S13 Silvia 180sx Bluebird Sunny Ca18 Ca18de Ca18det (48.5% similar) The fake bolts will never last under 400HP or higher. 180,000 - 210,000 psi. It effectively avoid reload scatter phenomenon. All big and small ends are finished with sunken honing machine, - precision alignment sleeves positively locate the rod cap, maintaining end bore size eliminating cap walk, ...(August 19th, 2023)
• Maxpeedingrods P1xyc7 4pcs Connecting Rods For 4g63 2nd Gen And Lancer Evo 7 Bolt Conrod Bielle Arp 2000 (51.5% similar) Full physical. Applications. 4PCS connecting rods for 4G63 2ND gen lancer Eco 7 bolt conrod belle APR 2000 . For 4G63 2ND gen lancer Eco 7 bolt, note to length :156MM/6.142. Will not fit 1g 4G63 6 bolt engines. Telephone number. For talon for RSI 1993 -1998, Mitsubishi eclipse gs 1993 -1994, GST...(August 28th, 2023)
• Maxpeedingrods 0i3fmy New 4340 Forged Connecting Rods Arp Bolts For Honda Civic L15b7 L15b9 Vtc Turbo (67.7% similar) For honda L15B7 Tc turbo, 2016 for civic turbo us, Canada, china, 2017 Si Canada m Rico, cr-v, non-LX aura CDC china, 2018 accord us Canada, please double confirm the dimensions to ensure get right parts, -, pin type: floating piston. Best costumer service. V product test and ISO 9001 ...(September 2nd, 2023)
• Maxpeedingrods 548ja0 Forged H-beam Connecting Rods Arp Bolts For Hyundai 1.6 Gamma T-gdi G4fj 130.8mm (61.2% similar) All big and small ends are finished with sunken honing machine, precision alignment sleeves positively locate the rod cap, maintaining end bore size eliminating cap walk, -100% x-rated, sonic tested , -multi-stage heat treated, shot preened to relieve stress, come bronzed bushing suitable for ...(September 2nd, 2023)
• Maxpeedingrods P1dv8l 4pcs Connecting Rods For Toyota Celica Gt-s Corolla T-sport 2zzge 2zz-ge 1.8l (50.8% similar) Best costumer service. It begins from the date purchased. V certification con rods, type: forged 4340 aircraft chrome moly quality steel for racing, h-beam conrod quantity: 4 pieces a set, bolts:including genuine APR 2000 bolts, note: extra cost upgrading to L19 bolts size: 3/8 tolerance: balanced...(September 18th, 2023)
• Maxpeedingrods G4n3if 4340 Connecting Rod arp 2000 Bolt For Bmw 1 Series F20 2010-2018 Hatchback 120i (49.2% similar) Fastener yield psi. A weak rod bolt in a racing engine means catastrophic disaster and will put your life at risk. V product test and ISO 9001 certified, us Facebook account: . It secure the connecting rod and bearing to crankshaft. Advertised horsepower RATING:200HP/PIECE, top acceleration: ...(September 22nd, 2023)
• Maxpeedingrods P4hsed 4pcs I-beam Racing Connecting Rod For Audi S3 1.8 20vt Apy Amk 1999 2001 144mm (49.5% similar) 4PCS i-beam racing connecting rod for Audi s3 1.8 20VT pay amok 1999 2001 144MM. Application, note: please double confirm the dimensions before purchasing, no tapered small end, for Audi / VW golf GTI 1.8T 2.0L 16V 20V 4 Cl. Advertised horsepower RATING:200HP/PIECE, top acceleration: 9000RPM, ...(September 23rd, 2023)
• Maxpeedingrods Quej2s Forged Connecting Rod And Arp Bolts For Volvo 850 C70 T5 2.3l B5234t Conrod 800hp (62.9% similar) Fastener yield psi. A weak rod bolt in a racing engine means catastrophic disaster and will put your life at risk. us Facebook account: . We care about your engine as much you do. Shot-preened finish to remove potential for stress risers, 6.HIGH precision CBC machined,precision rod cap alignment ...(September 24th, 2023)