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  See all Engine products
Eagle Chevrolet 400 Rotating Assembly 4.155in Bore 3.875in Stroke +5.00cc Dome Pistons - 12032030

If you’re diving into the world of performance engines, the Eagle Competition Rotating Assembly is something you’ll want to check out. This isn’t just any rotating assembly; it’s built to handle the kind of power that serious racers and gearheads crave. I’ve had my hands on this setup, and it’s clear that Eagle has put a lot of thought into it.

First off, let’s talk about the heart of this assembly—the 4340 steel crankshaft. This isn’t your run-of-the-mill crank; it’s designed to withstand the rigors of high-performance applications. Pair that with the H-beam connecting rods, and you’ve got a solid foundation for whatever you’re planning to throw at it. These rods are tough and can handle some serious stress, which is crucial when you’re pushing your engine to its limits.

Now, the pistons. Eagle has teamed up with some heavy hitters like Arias, JE, and SRP to deliver premium forged pistons. These babies come with plasma-moly rings that help reduce friction and improve durability. You’ll notice a difference in how your engine performs, especially when you’re revving it up. And let’s not forget the Clevite77 "H" series bearings—they’re designed for high-load applications, so you know you’re getting quality where it counts.

For those of you looking for specific numbers, this assembly is tailored for the Chevrolet 400 with a 4.155-inch bore and a 3.875-inch stroke, plus those +5.00cc dome pistons. It’s a complete solution for anyone who’s serious about getting the most out of their engine.

In short, if you’re after reliability and performance, the Eagle Competition Rotating Assembly is a solid choice. It’s built for the demanding applications that real enthusiasts face, and it delivers the kind of power and durability that can take your build to the next level.

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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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