Manley H-Beam Connecting Rods for 02-06 RSX/02-11 Civic Si

Manley Performance H-Beam Connecting Rods - Honda/Acura K20

Building a K20 to actually make power? Then the stock rods have to go, they're one of the first things to let go when you turn up the boost or spin it hard, and when a rod lets go, it doesn't do it quietly. It puts a hole in your block and ends the motor. These Manley H-Beam connecting rods are the fix, forged and built to handle 600+ flywheel horsepower in a four-cylinder, so you can chase your power goals without your bottom end being the thing you're worried about.

Why Forged Rods Aren't Optional On A Built K20

Here's the reality of it. Your factory rods were built for factory power, and they do that job fine. But start adding boost or high rpm and cylinder pressures climb way past what those rods were ever meant to take. Push them too far and they bend or snap, and a broken rod at speed can punch straight through the block and take the whole engine with it. Forged H-beam rods like these are the insurance against that. They're built to take the load a real build throws at them, so whether you're going turbo, high compression, or just planning to rev it hard, this is the foundation you build on top of.

Manley Quality Without The Top-Shelf Price

Here's what makes these a smart buy. Manley's been making engine internals in the USA since 1966, and their H-Beam series is held to the same quality standards as their pricier Sportsmaster and Pro Series rods, just at a more affordable price. You're not giving up the good stuff to save money. They're forged from 4340 chromoly steel, then heat treated, stress relieved, shot peened, and 100% individually magnafluxed, which means every single rod is crack-checked, not just a sample from the batch. They come as weight-matched sets within +/- 1.5 grams, so your rotating assembly stays balanced, and they're finished to tight tolerances on everything that matters: the hone size, threads, bend, and twist. This is a serious rod, priced so you can actually afford to build the motor right.

Specs

• Center-to-center length: 5.472"
• Big end bore: 2.008"
• Big end width: 0.780"
• Pin diameter: 0.866" (22mm)
• Pin bore: 0.8671"
• Approximate weight: 509 grams
• Material: 4340 forged chromoly steel
• Journal and length: stock
• Rated for 600+ flywheel horsepower in a four-cylinder application

What You Get

• Manley Performance H-Beam connecting rod set for the Honda/Acura K20
• Forged 4340 chromoly steel, heat treated, stress relieved, shot peened, and 100% magnafluxed
• Weight-matched sets within +/- 1.5 grams
• Stock journal size and length
• Rated for 600+ flywheel horsepower

Fits These Cars

• 2002-2006 Acura RSX (K20A2, K20A3, K20Z1)
• 2002-2005 Honda Civic Si (K20A3)
• 2006-2011 Honda Civic Si (K20Z3)

Note: Manley Performance H-Beam connecting rod set for the Honda/Acura K20, fitting the K20A2, K20A3, K20Z1, and K20Z3 engines found in the 2002-2006 Acura RSX, 2002-2005 Honda Civic Si, and 2006-2011 Honda Civic Si. Forged from 4340 chromoly steel, heat treated, stress relieved, shot peened, and 100% individually magnafluxed, supplied as weight-matched sets within +/- 1.5 grams. Held to the same standards as Manley's Sportsmaster and Pro Series rods at a more economical price. Specifications: 5.472" center-to-center, 2.008" big end bore, 0.780" big end width, 0.866" (22mm) pin diameter, 0.8671" pin bore, approximately 509 grams, stock journal and length. Rated for 600+ flywheel horsepower in a four-cylinder application. Sold as a set. One connecting rod set per order.