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  See all Engine products
Eagle Specialty Prod 4340 Rod 6.700"BBC Rod - CRS67003D-1

If you're diving into the world of performance engines, you know that the little things can make a huge difference. That's where these Forged 4340 Steel H-Beam Connecting Rods come into play. Built for serious competition use, these rods are crafted from a two-piece forging, which means they’re not just strong; they’re engineered for precision. The fully machined and shot-peened surface adds a nice touch, enhancing durability and performance under pressure.

Now, let's talk specs. These rods are designed specifically for Chevrolet Big Block engines, with a center-to-center length of 6.700 inches. The big end width measures 0.99 inches, and they come equipped with 7/16" ARP 8740 bolts—so you know they’re built to handle some serious torque. Speaking of torque, you’ll want to torque these bad boys to 63 ft-lbs using ARP moly lube for optimal performance.

One of the standout features is that they’re bushed for a full-floating piston pin, which means smoother operation and better performance when you're pushing your engine to the limit. The housing bore is a solid 2.325 inches, and the rod journal measures 2.2 inches, giving you that perfect fit for your setup. Plus, the pin end width is 1.125 inches with a pin size of 0.99 inches, so you can really feel the quality in your build.

Just a heads up, these rods do contain nickel, which is known to the State of California to cause cancer, so be sure to check out the Prop 65 warning if that's a concern for you.

As for fitment, these rods are pretty universal, but I always recommend doing a little research to ensure they’ll work with your specific vehicle setup. It’s better to double-check than to assume, right? If you’re serious about your engine performance, these ESP 4340 Rods are definitely worth considering. They’re tough, reliable, and ready to take your performance game to the next level.

Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

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Who is EAGLE?

EAGLE SPECIALTY PRODUCTS, aka EAGLE, has been at the forefront of developing top-quality engine components. The company officially started back in 1992 but has been developing their product for ten years prior.  Since the company started, it has continuously produced some of the market's best engine components and is widely used by engine builders worldwide.

Imitated But Not Duplicated

Due to the company's success, its products have been imitated by other companies even up to the part numbers. But the similarity ends only up to how they look. EAGLE uses the finest materials and has invested in the most state-of-the-art manufacturing machinery for them to create a product that would be able to take any punishment it is subjected to. It is tested to be superior to other brands and considered the best upgrade for OEM counterparts.

No To Shortcuts

The company sets the benchmark on how valves should be properly made. Using their years of experience creating rods, they have already designed over 200 different rods and 180 crankshafts. The company does not allow cost to compromise its material used, manufacturing process, and quality test. 

High-End Quality

All of Eagle's products are made up of high-quality materials. They use certified 4340 Chromoly steel. Using their own special heat treatment process, they are able to create a product that is much stronger compared to other competitors using the same raw material. 

They manufacture their rods using a 2-piece forging process that allows the rod to be stronger. This process orients the "grain" of the metal to the direction of the stress. Eagle uses a state-of-the-art Sunnen Krossgrinding system that allows them to create perfect cuts and bore consistently. 

Purchase EAGLE rods at Vivid Racing

If you want to upgrade your engine rods to something stronger and more reliable, then EAGLE is the brand for you. With their proven design and formula for creating rods, they have been sought after by top racing teams and engine builders. If they trust Eagle, so can you. Visit Vivid Racing and check out the list of parts specifically for your needs.

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