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Lunati BU421IN

STROKE-MAIN-PIN NO BAL 4.125-

638-BU421IN

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Estimated ship date 12/20/17 if Ordered Today
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Lunati BU421IN STROKE-MAIN-PIN NO BAL 4.125- $1,916.99
STROKE-MAIN-PIN NO BAL 4.125-

Lunati BU421IN Details

Pro Series™; Crankshaft; Stroke 4.125 in.; Main Dia. 2.750 in.; Pin Dia. 2.2 in.; Rod Length 6.385 in.; Chevrolet Big Block V8;

Specifications:

Engine Balance
Internal
Rear Main Seal Style
2-piece
Balancer Bolt Thread Size (in.)
1/2-20
Crankshaft Material
Forged 4340 steel
Crankshaft Snout Style
Standard
Engine Stroke (in.)
4.125
Lightened
Yes
Main Bearings Included
No
Main Journal Diameter (in.)
2.749
Quantity
Sold individually
Requires Narrow Bearings
Yes
Rod Bearings Included
No
Rod Journal Diameter (in.)
2.2
Manufacturer's Part Number:
BU421IN
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