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Eagle Specialty Products 428137505950 - Eagle Forged 4340 Steel Crankshafts

Eagle Specialty Products 428137505950 - Eagle Forged 4340 Steel Crankshafts large image

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  • Crankshaft, Internal Balance, Forged 4340 Steel, 3.750 in. Stroke, Ford, 4.6L, Each
  • Application Specific
  • Estimated Ship Date: 5/29/2012
 
BrandEagle Specialty Products
Manufacturer's Part Number428137505950
Part TypeCrankshafts
Product LineEagle Forged 4340 Steel Crankshafts
Summit Racing Part NumberESP-428137505950
 
Rear Main Seal Style1-piece
Engine Stroke (in)3.750 in.
Crankshaft MaterialForged 4340 steel
Engine BalanceInternal
LightenedNo
Requires Narrow BearingsYes
Rod Bearings IncludedNo
Main Bearings IncludedNo
Cross-Drilled MainsNo
Rod Journal Diameter (in)1.889 in.
Main Journal Diameter (in)2.657 in.
Balancer Bolt Thread SizeM12-1.5mm
Crankshaft Snout StyleStandard
Weight50.000 lbs.
QuantitySold individually.
NotesHonda rod journals. This crankshaft features center counterweights for added strength at high RPM, which may require block clearancing.
ToolStroker Combinations
 

These forged 4340 steel crankshafts from Eagle Specialty Products are great for high performance applications. They feature non-twist forging, go through a multi-stage heat-treatment process, and are stress-relieved and shot-peened. These cranks are X-rayed, magnafluxed, and sonic-tested, so you know you're getting a top-quality piece. Each crankshaft has cross-drilled and chamfered oil holes for improved oiling, a .125 in. radius on rod and main journals for increased strength, and the journals are precision-ground and micro-polished to less than 5 R.A. A target bob weight of +/- 2 percent greatly reduces balancing time.

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