Author Topic: W72 Formula?  (Read 1569 times)

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Offline 1973Formula

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W72 Formula?
« on: July 22, 2008, 09:58:59 PM »
How can I tell if a 1977 Formula has the W72 package?  Is there any way other than looking at the PHS or build sheet?

Thanks,

Offline Hitman

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Re: W72 Formula?
« Reply #1 on: July 22, 2008, 10:03:56 PM »
Well, you can look at the engine code to see if it is a Y6 or YG for an engine code on the front of the block.  Check this page: http://www.78ta.com/enginecodes.php
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Offline John Witzke

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Re: W72 Formula?
« Reply #2 on: July 22, 2008, 10:17:49 PM »
John Witzke

Offline 1973Formula

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Re: W72 Formula?
« Reply #3 on: July 22, 2008, 10:24:14 PM »
Thanks, I looked at a one owner '77 Formula today.  It has the 400.  I could not read/see any codes on the front of the block.  I didn't try too hard.  I have asked the seller to take another look for me.  The car is decent.  It has 120k miles on the original engine/trans.

Offline ta78w72

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Re: W72 Formula?
« Reply #4 on: July 22, 2008, 11:19:00 PM »
Thanks, I looked at a one owner '77 Formula today.  It has the 400.  I could not read/see any codes on the front of the block.  I didn't try too hard.  I have asked the seller to take another look for me.  The car is decent.  It has 120k miles on the original engine/trans.

Does it have the chrome valve covers?  Also, check the number on the carb, the W72 carbs were specific to those engines.  The best way although is what Brett said.
« Last Edit: July 22, 2008, 11:20:51 PM by ta78w72 »

Offline greyno3

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Re: W72 Formula?
« Reply #5 on: July 23, 2008, 03:28:14 AM »
...or the code  WA  for 4-speed. VIN should have a Z in it but does not mean it's a W72 rather a Pontiac 400 and/or W72.
1972 Formula 462
1977 Formula W72 4-speed 69K
1969 GP-J 440
1981 T/A 455