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425 vs 455 help

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April 1st, 2017, 06:56 PM

#1

joes66olds

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Join Date: Feb 2017

Location: Juliette ,ga

Posts: 32

425 vs 455 help

I just pulled the motor out of a cutlass I bought(being told it was a 455)when I got it out I noticed it had a toro oil pan on it so I pulled the pan off to find the N on the crankshaft.which means a steel crank right?it has an F block and I guess my question is, 425 or 455 ?Ive read that the cam shafts are not the same and cost more.can I put this crank in a 455 .what are your thoughts.thanks for the help guys

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April 1st, 2017, 07:49 PM

#2

svnt442

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Location: Palm Bay, FL

Posts: 4,249

N is nodular iron and the F is a 455.

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