Eagle 434640006100 Eagle ESP 4340 Chevrolet LS1 LS2 forged steel crankshaft.
Perfect for applications up to 1500 horsepower.
You can build a stroker engine from 383-454 ci with this crankshaft.
Stroke is 4.0000 in. (Stock stroke is 3.622 for both the LS1 and LS2 engines.)
Minimum rod length is 6.125 in.
Rod journal size is 2.100 in. Main journal size is 2.559 in.
Rod journal width is 1.990 in.
One piece rear seal design.
Has 6 flywheel bolt holes.
Typical weight is 55 lbs. Bobweight is 1800.
Provides 383 cubic inches with a 3.905 bore.
Provides 403 cubic inches with a 4.005 bore.
Provides 408 cubic inches with a 4.030 bore.
Provides 414 cubic inches with a 4.060 bore.
Provides 428 cubic inches with a 4.125 bore.
Provides 454 cubic inches with a 4.250 bore.
The Eagle ESP Forged 4340 steel crankshafts feature a non-twist forging and undergo a multi-stage heat treatment process as well as stress relieving, shot peening, and nitriding.
The Eagle ESP Forged 4340 steel crankshafts are magnafluxed and sonic tested to insure quality.
Every journal is micropolished to a 3 or better R.A. A 0.125 radius is used to increase strength, so chamfered bearings must be used.
All rod throws feature lightening holes to reduce weight.
Target bobweight is +/-2%.
TECH NOTE: For LS1 and LS2 engines up to early 2005 and LS6 and LQ9 engines with the 24 tooth reluctor. Eagle LS1 crankshafts with reluctor rings feature a new, original equipment style reluctor ring installed and checked for runout.
TECH NOTE: Recommend main bearings MS2199H and rod bearings CB663H.
Matching main and rod bearings for the Eagle 434640006100 crankshaft shown above.
Sold as a set of main and rod bearings.
Clevite 77 MS2199H main bearings.
Clevite77 CB663H rod bearings.
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