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4.500-2.750-2.200RL6.535
LUNATI/HOLLEY 80445002 Features:
Based on the original Signature Series Crankshafts offered by Lunati, this series is designed to withstand the extreme pressures encountered when using a blower (Roots-type supercharger). With all of the original features of the Signature Series, these Signature Blower Crankshafts have .125" radii on the rods and mains, as well as dual keyways, larger nose bolt threads and enlarged flexplate flange threads. The #1 rod journal is also undrilled in order to provide extra strength on the front of the crankshaft.Part TypeCrankshaft
BrandLUNATI
Package Height6.0
Package Width10.0
Package Length27.5
Weight88.0 PG
Weight88 lb (39.909 kg)
Part CategoryPerformance Parts
Crankshaft MaterialForged 4340 steel
Rod Journal Diameter2.2 in (55.9 mm)
Main Journal Diameter2.75 in (69.85 mm)
LightenedNo
QuantitySold individually
Crankshaft Snout StyleStandard
Engine BalanceInternal
Rear Main Seal Style2-piece
Balancer Bolt Thread Size (In.)3/4-16
Requires Narrow BearingsYes
Part FitmentSemi Universal
Engine Stroke4.5 in (114.3 mm)
Vendor Part Number80445002
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations