Description
At Borowski Race Engines, we use Callies Ultra rods for a lot of our LS engine builds. Why? Because they survive where others don’t.
Callies developed the Ultra connecting rod with the design goal of an uncompromised strength to weight ratio. Every Ultra connecting rod is produced from specially formulated Timken Steel 4330 and precision forged for uniform grain flow and consistency. Many geometric nuances are incorporated into the design of Ultra connecting rods, which are subject to high output, high RPM applications. These design features enhance the Ultra against specific loads and stresses.
The Ultra H-Beam configuration was added to the Ultra connecting rod line to satisfy the requirements of the most demanding racing applications. They are rated to 1,500 hp so can take a real pounding. Michael got a set of these in his naturally-aspirated engine because he is planning to do lots of that pounding on his Camaro – drag race, road, race, autocross. He went top-shelf across the board as you’ll see in the video below.
Get a set of these of the rods solo or as part of a rotating assembly, short block, long block or complete engine. Please call us at 815-725-2727 to discuss your requirements.
Connecting Rod Length Center to Center (in.): 6.125 in.Connecting Rod Beam Style: H-beamConnecting Rod Material: Forged 4330 steelConnecting Rod Finish: Shot-peenedWrist Pin Style: FloatingRod Journal Diameter (in.): 2.100 in.Big End Bore Diameter (in.): 2.2250 in.Big End Width (in.): 0.940 in.Pin End Bore Diameter: 0.927 in.Pin End Width (in.): 0.988 in.Clearanced for Stroker: NoCap Retention Style: Cap screwConnecting Rod Bolt Brand: ARPConnecting Rod Bolt Diameter: 7/16 in.Connecting Rod Bolt Material: L19 alloyFastener Tensile Strength (psi): 230,000 psiConnecting Rod Bolt Head Style: 12-pointApproximate Connecting Rod Weight (g): 650Advertised Horsepower Rating: 1,500 hpWeight Matched Set: YesRemanufactured: NoMagnafluxed: Yes
Sold in sets of 8 rods
Methods of payment accepted: Credit Card, PayPal, Cash, Wire Transfer
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