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400 blocks When did they start making them? #632324
03/06/10 06:57 PM
03/06/10 06:57 PM
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Cincinnati OH
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Bishop Offline OP
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Cincinnati OH
I have a 400 block cast 6 2 71 When did they start making these blocks?

Re: 400 blocks When did they start making them? [Re: Bishop] #632325
03/06/10 07:01 PM
03/06/10 07:01 PM
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Pangaea
B5 Bee Offline
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First model year for the 400-2 was 1971. Some had to be cast in mid 1970 for them to be ready for the upcoming new model year.

Re: 400 blocks When did they start making them? [Re: Bishop] #632326
03/06/10 07:09 PM
03/06/10 07:09 PM
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Indy
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joshking440 Offline
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Indy
does the blocks casting number end in 230?

Last edited by joshking440; 03/06/10 07:09 PM.
Re: 400 blocks When did they start making them? [Re: Bishop] #632327
03/06/10 07:30 PM
03/06/10 07:30 PM
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Rio Linda, CA
John_Kunkel Offline
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'72 was the first model year for the 400, the 230 blocks were first cast in 4-71.


The INTERNET, the MISinformation superhighway
Re: 400 blocks When did they start making them? [Re: Bishop] #632328
03/06/10 07:40 PM
03/06/10 07:40 PM
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Posts: 31,051
Oregon
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AndyF Offline
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Oregon
A 6-71 block is very early. That would be the cold weather block with the extra thick main webs. If the cylinders in that block are thick then that is one of the best blocks to use for a race motor.

Re: 400 blocks When did they start making them? [Re: B5 Bee] #632329
03/07/10 04:01 PM
03/07/10 04:01 PM
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Pangaea
B5 Bee Offline
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Quote:

First model year for the 400-2 was 1971. Some had to be cast in mid 1970 for them to be ready for the upcoming new model year.



This is an example of what you post when you read 400 and think 360.

Re: 400 blocks When did they start making them? [Re: B5 Bee] #632330
03/10/10 09:37 PM
03/10/10 09:37 PM
Joined: Nov 2003
Posts: 915
Cincinnati OH
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Bishop Offline OP
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Posts: 915
Cincinnati OH
Yes the cast number is 3614230

Brian







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