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

If you're diving into the world of performance engines, you know that the right components can make all the difference. Let me tell you about these Forged 4340 Steel H-Beam Connecting Rods. Crafted from a two-piece forging, these rods are not just built for strength; they’re precision-engineered with a fully machined and shot-peened surface that really stands up to the rigors of competition. Trust me, you want your connecting rods to be tough, and these definitely fit the bill.

With a center-to-center length of 6.7 inches, these rods are specifically designed for Chevrolet Big Block engines. The big end width measures in at 0.99 inches, and the pin end width is a solid 1.125 inches. Plus, they come with 7/16" ARP 8740 bolts—you know you're getting quality there. And if you're running full-floating piston pins, you're in luck; these rods are bushings-ready for that setup.

Now, let’s talk about the details that matter. The housing bore is 2.325 inches and the rod journal sits at 2.2 inches. Each rod in this weight-matched set is made from forged 4340 steel, which gives you the durability you need when pushing your engine to its limits. Just make sure you torque them to 63 ft-lbs using ARP moly lube—it's a small detail, but it makes a big difference in performance.

One thing to keep in mind, though: these rods are recommended for competition use, so if you're planning on hitting the track, you're in good hands. Just a heads-up: this product contains nickel, which is known to the State of California to cause cancer, so make sure you’re aware of that if you’re in California.

In short, if you're looking for reliable, high-quality rods that can take the heat and keep your engine running strong, these ESP 4340 Rods are a solid choice. Just do a little homework to ensure they fit your specific setup, and you'll be ready to unleash some serious power.

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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