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maXpeedingrods 4 PCS Steel Forged Connecting Rod Rods for Honda Civic CRX D16 D16A D16Y7 D16Y8 D16Z6 137 mm With ARP 2000 bolts

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  • Shipping Timeframes: All orders are processed within 2-5 business days (excluding weekends and holidays). After your order has been processed, the estimated delivery time is before 03 Feb, 2026, depending on customs, Please note that due to high demand, some items may experience longer shipping times, which will be communicated at order confirmation email.
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1. What exactly is included in the maXpeedingrods 4 PCS connecting rod kit?

The kit includes four forged 4340 chrome-moly H-beam connecting rods (one set of 4), genuine 3/8" ARP 2000 bolts, and bronze wrist-pin bushings already fitted. It is a complete 4-piece rod set intended to replace the stock D16 connecting rods.

2. Which Honda/Acura models and engines do these rods fit?

These rods are designed for many JDM and global D16 series applications listed in the product description — including CRX, Civic (various trims such as Si, EX, HX, GX), Integra (1986–1989), Del Sol, Domani and others. Because fitment varies by market and year, you should verify the 137 mm center-to-center length and rod end dimensions against your engine before purchase.

3. What are the key dimensions and specs of the rods?

Center-to-center length: 137 mm (5.394"). Big-end diameter: 48 mm. Small-end diameter: 19 mm. Big-end width: 22.8 mm. Small-end width: 18.2 mm. Material: forged SAE 4340 chrome-moly steel. Weight matched to ±1 g per rod.

4. Are ARP bolts included and can they be upgraded?

Yes — genuine 3/8" ARP 2000 bolts (rated ~220,000 psi) are included. An upgrade to higher-strength ARP L19 bolts (approx. 260,000 psi) is available as an optional, extra-cost item — contact the seller to request the upgrade.

5. What is the advertised horsepower rating for these rods?

The street version is advertised at around 200 HP per rod, while a track version is advertised at around 250 HP per rod. Actual safe power depends on your build (bolting method, balancing, rotating assembly, and forced induction). Consult an engine builder for high-boost or high-RPM applications.

6. Do I need to modify the block to install these rods on D16Y7, D16Y8, or D16Z6 engines?

Possibly. The manufacturer specifically notes that you may need to notch the block for clearance with D16Y7, D16Y8, and D16Z6 engines. Confirm clearance and plan any necessary block work before purchase or installation.

7. What quality and inspection processes do these rods undergo?

Each rod is forged from SAE 4340, multi-stage heat treated, shot-peened, CNC machined, magnetically particle-inspected, 100% X-rayed and sonic-tested. Bores are finished to ±0.01 mm and sets are weight matched within ±1 g.

8. What is the rod design and why is it used?

They use an H-beam design. H-beams provide a high strength-to-weight ratio and resist bending/twisting under high loads, making them a common choice for racing and high-performance engines.

9. Are bronze wrist-pin bushings included and why are they important?

Yes — wear-resistant bronze wrist-pin bushings are fitted to each small end. Bronze bushings improve wrist-pin life and reduce wear compared with plain small-end finishes when used with compatible pins.

10. Can I use these rods in a forced-induction (turbo/supercharged) build?

Forged 4340 rods are robust and commonly used in boosted builds, but suitability depends on your target power, RPM, bolt choice, and overall engine assembly. For high-boost/high-power applications we recommend upgrading to ARP L19 bolts, balancing the rotating assembly, and consulting an experienced engine builder.

11. What installation practices are recommended (torque, bearing selection, balancing)?

Follow ARP's bolt installation instructions (torque or stretch method) and use the correct rod bearings and clearances for your crank. Always install with a calibrated torque wrench or a stretch gauge when recommended, and have your rotating assembly dynamically balanced after installation. If unsure, have a professional engine builder perform the installation.

12. Are these rods CNC machined and how tight are the tolerances?

Yes — the rods are 100% CNC machined. The product states CNC precision down to approximately ±0.0004 in for some surfaces and bores finished to ±0.01 mm, with precise cap alignment dowels.

13. Do these rods come with any certification or approvals?

The description notes TÜV certification for the connecting rods and they undergo magnaflux (magnetic particle), X-ray and sonic testing as part of quality control.

14. Is there a street vs. track version and other upgrade/accessory options?

Yes — the listing mentions a street and track version with different advertised HP ratings. Optional upgrades include ARP L19 bolts, titanium-plated models, and non-bolt (different cap fastening) variants. Contact the seller for available configurations and pricing.

15. What if I need returns, warranty information, or have further fitment questions?

The product description does not specify a warranty or return policy. For returns, warranty, or specific fitment questions (including whether your engine will require block notching), contact the seller directly before purchase so they can provide exact shipping/return/warranty terms and confirm compatibility.

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