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big flange 400 main bearings

Started by Nacho-RT74, April 24, 2011, 12:02:01 PM

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Nacho-RT74

April 24, 2011, 12:02:01 PM
How do I know what main bearings should use my engine ? big or small flange ?

I don't have the car with me to check the casting on block... which casting numbers I have to be alert to know If I have to use one or the other ?
Venezuelan RT 74 400 4bbl, 727, 8.75 3.23 open. Now stroked with 440 crank and 3.55 SG. Here is the History and how is actually: http://www.dodgecharger.com/forum/index.php/topic,7603.0/all.html
http://www.dodgecharger.com/forum/index.php/topic,25060.0.html

Nacho-RT74

#1
April 25, 2011, 10:57:51 AM
http://www.440source.com/maincaps.htm

is there someway to know FOR SURE from the casting number about this ?
Venezuelan RT 74 400 4bbl, 727, 8.75 3.23 open. Now stroked with 440 crank and 3.55 SG. Here is the History and how is actually: http://www.dodgecharger.com/forum/index.php/topic,7603.0/all.html
http://www.dodgecharger.com/forum/index.php/topic,25060.0.html

FLG

#2
April 25, 2011, 02:13:57 PM
Says you should be able to determine it by the year of the block, but the only way your going to know for sure it to visually inspect.

John_Kunkel

#3
April 25, 2011, 02:38:43 PM

Since the difference in the thrust bearing counterbore is just a machining operation I doubt if casting numbers will reflect it.
Pardon me but my karma just ran over your dogma.
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