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Author Topic: YT and YH Engine codes  (Read 2345 times)

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Offline 79_Bandit

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YT and YH Engine codes
« on: February 19, 2007, 10:11:28 PM »
Can anyone give me any information on these two engines i have.

i have a 68 pontiac 400 motor with a YT engine code and a 75 pontiac 400 engine coded with the YH also has 6x heads on it i dont know much about the 75 as i just picked it up today and paid only 300 for it.. any information would greatly be apreciated. thanks.
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Offline johnta1

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Re: YT and YH Engine codes
« Reply #1 on: March 03, 2007, 02:26:25 PM »
Engine Code Search

The YT is a 4 bbl engine with 16/62 heads originally.
The YH is a 2 bbl engine with 5C/6X heads originally.

What's the date code on the 1975 400 you have?
« Last Edit: March 03, 2007, 02:28:49 PM by johnta1 »
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John  Wallace
Pontiac Power RULES !

Offline Rick

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Re: YT and YH Engine codes
« Reply #2 on: March 03, 2007, 11:17:49 PM »
IIRC, the "Y" codes were auto engines, and the manual tranny engines were coded "W".  I'll have to look to double-check that though -- this has been a long day... ???
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