They are designed for Ford Sierra / Escort RS Cosworth with the Cosworth YB engine. Confirm compatibility with your specific year and engine variant before purchase.
The center-to-center length is 145 mm.
Forged 4340 aircraft chrome-moly quality steel.
The kit includes 4 connecting rods (as shown in the product picture).
Yes. The set includes genuine ARP 2000 bolts, size 3/8".
Yes. An upgrade to ARP L19 bolts is available for an extra cost—contact the seller for pricing and ordering details.
Yes. The set is balanced to +/- 1 gram across the set.
Big end diameter: 55 mm. Small end diameter: 24 mm. Both big-end and small-end widths are 25.9 mm.
Yes. The product comes with a 2-year warranty. Check the seller for full warranty terms and conditions.
They are forged 4340 H‑beam rods with ARP2000 bolts, suitable for many performance and turbo YB builds. For very high-horsepower or extreme abuse applications, consider upgrading to ARP L19 bolts and consult your engine builder for confirmation.
Follow ARP's manufacturer guidance. While ARP2000 bolts are high quality, many builders prefer installing new rod bolts on every full engine assembly. Replace bolts if any signs of stretch or damage are present.
Specific torque values are not provided in this listing. Use ARP's published torque and fastener stretch procedures for 3/8" ARP 2000 bolts and follow your engine builder's recommendations.
The rods have a 55 mm big-end bore; standard YB rod bearing sizing may be required. Final bearing selection and fitment should be verified and installed by a machine shop or experienced engine builder.
The listing does not specify shot peening, nitriding, or NDT results. If these details are important, contact the seller/manufacturer to confirm processing and inspection records.
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