Callies Ultra connecting rods are produced from extremely clean Timken steel that is formulated to our exact specifications. This proprietary steel is forged in Trenton, Michigan, and manufactured 100% in our Fostoria, Ohio facility. Pride in workmanship, and attention to detail are qualities you’ll discover during careful examination of our finished product. Each step of the manufacturing history of every Ultra rod is meticulously maintained by our manufacturing team. You can be confident of the material and workmanship of these quality components.
Ultra I-Beams are available in our standard weight version for extreme duty racing applications of popular Big Block Chevy, Small Block Chevy, and LS1, as well as liteweight versions for select SBC configurations. For superior clamping, a bolt upgrade to Custom Age 625 material is available for all Callies I-Beams.
The Ultra H-Beam configuration was recently added as part of our expanding connecting rod line. Made from the same premium grade Timken material, the Ultra H is designed to satisfy the requirements of the most demanding racing applications.
Callies latest connecting rod innovation is our unique Ultra XD, designed for extra cam clearance on long stroke applications. The canted fastening system allows the use of a larger base circle cam for increased valvetrain stability, more lift using the same base circle, or longer stroke. See it here.
Industry Leading Features Include:
Increased Stroker Clearance – The best bolt to block & rod to cam clearance in the industry for long stoke applications.
Bolt Spotface Gussets – Allow optimized bolt location without loss of strength or defomation of the big end bore.
100% Thread Engagement – Assures no bolt threads are left exposed in the area between the bolt thread and shank.
Specifically Designed, 260Ksi Ultra Bolts – All Ultra bolts are designed to fit each specific rod. Rolled threads are employed to provide improved engagement for a more consistent clamping load. Callies provides and recommends the use of ARP Ultra torque lube. For a complete listing of recommended torque & stretch data, please visit our FAQ page.
Below are the Ultra connecting rods we currently produce:
| Small Block/LS – I Beams | Big Block – I Beams | |||||||||
| Part # | Size | B.E. | P.E. | Total | Part # | Size | B.E. | P.E. | Total | |
| U14125 | SBC 5.700 | 456 | 185 | 641 | U15110 | BBC 6.385 | 572 | 238 | 810 | |
| U14130 | SBC 5.850 | 461 | 186 | 647 | U15111 | BBC 6.535 | 577 | 242 | 819 | |
| U14131 | SBC 5.850-SJ | 446 | 182 | 628 | U15113 | BBC 6.660 | 578 | 245 | 823 | |
| U14132 | SBC 5.850-HJ | 405 | 179 | 584 | U15114 | BBC 6.700 | 579 | 247 | 826 | |
| U14135 | SBC 6.000 | 464 | 193 | 657 | U15115 | BBC 6.750 | 580 | 248 | 828 | |
| U14136 | SBC 6.000-SJ | 450 | 186 | 636 | U15116 | BBC 6.800 | 581 | 249 | 830 | |
| U14138 | SBC 6.000-LW | 438 | 175 | 613 | U15117 | BBC 6.385-SJ | 559 | 238 | 797 | |
| U14139 | SBC 6.000-SJ-LW | 428 | 174 | 602 | U15118 | BBC 6.535-SJ | 566 | 239 | 805 | |
| U14140 | SBC 6.125 | 466 | 195 | 661 | ||||||
| U14141 | SBC 6.125-SJ | 453 | 190 | 643 | ||||||
| U14143 | SBC 6.125-LW | 439 | 177 | 616 | Big Block – H Beams | |||||
| U14144 | SBC 6.125-LW-SJ | 429 | 174 | 603 | Part # | Size | B.E. | P.E. | Total | |
| U14145 | SBC 6.200 | 470 | 198 | 668 | U16200 | BBC 6.385 | 576 | 228 | 804 | |
| U14151 | SBC 6.250-SJ | 457 | 193 | 650 | U16210 | BBC 6.535 | 579 | 233 | 812 | |
| U14150 | SBC 6.250 | 469 | 198 | 667 | U16230 | BBC 6.700 | 585 | 237 | 822 | |
| U17171 | LS1 6.125 | 467 | 196 | 663 | ||||||
| U17178 | LS1 6.350 | 472 | 201 | 673 | ||||||
| Ultra Xd – I Beams | ||||||||||
| Part # | Size | B.E. | P.E. | Total | ||||||
| Small Block/LS – H Beams | U18114 | 6.700-Xd | 586 | 250 | 836 | |||||
| Part # | Size | B.E. | P.E. | Total | U18130 | 5.850-Xd | 464 | 191 | 655 | |
| U16100 | SB 6.000 | 463 | 182 | 645 | U18135 | 6.000-Xd | 469 | 196 | 665 | |
| U16101 | SB 6.000-SJ | 450 | 179 | 629 | ||||||
| U16300 | LS1 6.125 | 466 | 185 | 651 | ||||||
| U16301 | LS1 6.460 | 471 | 190 | 661 | Ultra Xd – H Beams | |||||
| U16302 | LS1 6.350 | 470 | 190 | 660 | Part # | Size | B.E. | P.E. | Total | |
| U16303 | LS1 6.200-LW | 447 | 177 | 624 | U19114 | 6.700-Xd | 581 | 235 | 816 | |
| U19135 | 6.000-Xd | 464 | 182 | 646 | ||||||
Please visit our Availability page for our current inventory.
Professionally packed and fast shipping
Through our long-term relationship with UPS, FedEx, DHL and many other top global carriers we are able to offer various shipping options. Our warehouse staff is extremely skilled and will package your products according to our exact and precise specifications. Your items are carefully inspected and properly secured before shipping. We ship to thousands customers every day across multiple countries. This shows our commitment to be the largest online retailer on the planet. We have distribution centers and warehouses in Europe and the USA.
It is important to note that orders with more than one item are processed according to the specific item.
We will thoroughly inspect all items before sending. Most orders are shipped within 48 hours. The time to deliver varies from 3-7 days.
Returns
The stock is dynamic and we do not fully manage it because of the fact that many parties are involved, including our warehouse and factory. The actual stock can change at any moment. It's possible that the inventory could run out once your order has been processed.
Our policy runs for a period of 30 days. We cannot replace or refund your purchase after 30 days since the purchase.
The item cannot be in use and must be in the original packaging. It should also be in the original package.
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