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Old 04-09-2010, 12:07 AM
AZHARLEY AZHARLEY is offline
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Default 77 t/a

I have a 77 TA 4-spd, cam, 750 holley, flowmasters, polished snowflakes.....Question...the heads have a YB code....I assume this is 72' 455. Did alot of searching and getting different codes from everyone. Also, would this increase the value of the 77'?

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Old 04-09-2010, 08:26 AM
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se428bandit se428bandit is offline
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Where are you getting this YB code from?The # on the heads are on the center exhaust ports.

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Old 04-09-2010, 11:02 AM
AZHARLEY AZHARLEY is offline
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Default azharley

the yb code is on passenger side front of the block

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Old 04-18-2010, 07:43 PM
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rhino33 rhino33 is offline
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http://www.hotrodders.com/kb/
this is a great site for running numbers

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Old 04-22-2010, 01:31 AM
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lester lester is offline
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you really need the year to, and the casting #'s on the back right side of the block. the YB was used for several motors
but being a 77 you really hope for a W72 400 with the Y6 or WA code .
from 77 - 79 the W72 400 was the icing on the cake. other then finding a SE

really look at your block code, make sure it's not a Y6 , some times it will look like YG

if its a 455, 455 will be cast into the left side of the block, beside the fuel pump

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