Engines and Components› Crankshafts and Components

Eagle

4.000" Forged Crankshaft Kit with 6.125" H-Beam Rods

$3,002.99

SKU: EAG129264005

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Ships by Jul 31
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Description

The Eagle rotating assembly kit is engineered for Chevrolet and Pontiac LS-Series engines, aiming to build 403/408 cubic inch displacements with a 4.005-inch bore. This comprehensive kit includes a robust 4.000-inch forged 4340 crankshaft and 6.125-inch H-beam connecting rods, secured by 7/16-inch ARP 8740 bolts for enhanced durability. The included forged 4032 Mahle pistons feature a -12cc inverted dome design, paired with plasma-moly file-fit rings to ensure optimal sealing and performance. For superior reliability, the assembly is equipped with King XP rod and main bearings. This rotating assembly is specified to fit a range of vehicles, including the 2004-2007 Cadillac CTS-V, 2010-2013 Chevrolet Camaro SS, 1998-2002 Chevrolet Camaro Z28, 1997-2010 Chevrolet Corvette (all trims including Base, Z06, ZR1), 2005-2006 Chevrolet SSR, 2006-2008 Chevrolet Trailblazer SS, 1998-2002 Pontiac Firebird Formula, and 2004-2006 Pontiac GTO Base.

MIA's Description

It includes a 4.000" forged 4340 crankshaft, 58-tooth reluctor, and 6.125" H-beam rods with 7/16" ARP 8740 bolts. The kit also features forged 4032 Mahle pistons with a -12cc inverted dome, plasma-moly file-fit rings, and King XP rod and main bearings.

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Specifications

BrandEagle
Part NumberEAG129264005
CategoryEngines and Components

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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