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Big Block Chevy
- Signature Series Crankshaft
- Big Block Chevy
- Stroke: 4.250"
- Main Bearing O.D.: 2.750"
- Rod Journal O.D.: 2.200"
- Minimum Rod Length: 6.385"
- Rod Journal Width: 2.000"
- Connecting Rod: Big Chevy
- 2-Piece Rear Main Seal
MUST use narrow or chamfered main & rod bearings.
Part TypeCrankshaft
BrandLUNATI
Package Height2.5
Package Width5.25
Package Length26.0
Weight88.0 PG
Part CategoryPerformance Parts
Crankshaft MaterialForged 4340 steel
Rod Journal Diameter2.2 in (55.9 mm)
Main Journal Diameter2.749 in (69.825 mm)
LightenedYes
QuantitySold individually
Crankshaft Snout StyleStandard
Main Bearings IncludedNo
Engine BalanceExternal
Rod Bearings IncludedNo
Rear Main Seal Style2-piece
Balancer Bolt Thread Size (In.)3/4-16
Requires Narrow BearingsYes
Part FitmentSemi Universal
Engine Stroke4.25 in (107.95 mm)
Vendor Part Number80442502
Package Qty1
Package TypeEA
No Questions
No Reviews
Some parts are not legal for use in California or other states with similar laws / regulations
