L-6 GM 4.2 CRANKSHAFT

This topic has 2 replies, 2 voices, and was last updated 2 months, 2 weeks ago by Cooksville Automotive Engines Ltd..

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August 21, 2025 at 2:25 pm #239905
Cooksville Automotive Engines Ltd.
Participant
Anyone have a crank and rod for this engine?
Crank casting # 139

G
063
905-270-4561
August 22, 2025 at 2:08 am #239906
RPMS Inc.
Participant
Gary:
We can’t find any crank casting # 139.
How old is the 4.2 / 261 GM?
August 25, 2025 at 7:25 am #239911
Cooksville Automotive Engines Ltd.
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2007 TRAILBLAZER
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