Specifications
- Brand
- Eagle
- Part #
- 21202055
- UPC
- 793348802121

Eagle Chrysler RB 4.250in Crank 7.100in H-Beam -8cc Flat Top 4.375in Pistons Rotating Assembly
$3003.28
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Eagle Chrysler RB rotating assembly includes a 4.250" forged crank, 7.100" H-beam rods, and Mahle pistons. Built for racing.
Key Features
- Fits Chrysler RB engines.
- Includes a 4.250-inch forged 4340 steel crankshaft.
- Features 7.100-inch H-beam connecting rods with 7/16-inch ARP 8740 bolts.
- Comes with Mahle forged 4032 flat-top pistons (4.375-inch bore, -8cc dish).
- Includes plasma-moly file-fit rings for custom sealing.
- Equipped with King XP rod and main bearings.
⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more
Product Details
This Eagle Competition Rotating Assembly is a complete package designed for serious performance builds, especially those involving racing, nitrous, or forced induction. You get a forged 4340 steel crankshaft with a 4.250-inch stroke, 7.100-inch H-beam connecting rods secured with 7/16-inch ARP 8740 bolts, and Mahle forged 4032 pistons. These pistons are flat-top design with a -8cc dish and a 4.375-inch bore size, paired with plasma-moly file-fit rings for precise sealing. The assembly also includes King XP rod and main bearings for robust lubrication and durability.
The forged 4340 steel crankshaft is a strong foundation, built to handle the stresses of high-performance engines. The H-beam connecting rods are well-known for their strength and reliability under demanding conditions, and the inclusion of ARP 8740 bolts means you have strong, dependable fasteners holding everything together. Mahle's forged 4032 aluminum pistons are chosen for their durability and ability to withstand high temperatures and pressures, while the file-fit plasma-moly rings allow for custom tension and improved sealing against the cylinder walls. This combination is geared towards maximizing power output and ensuring longevity in competitive applications.
This rotating assembly is a significant step up for any Chrysler RB engine build aiming for maximum performance. It's important to note that this assembly is not CARB approved and cannot be shipped to California due to emissions regulations. Always consult with your engine builder or refer to manufacturer specifications for proper installation and balancing procedures to ensure optimal performance and reliability.
Specifications
- Brand
- Eagle
- Manufacturer Part #
- 21202055
- UPC
- 793348802121
Frequently Asked Questions
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