Help I.D. some heads???????????
 

The drivers side has a "17" on the front of it, what does that make it? the car is an 85 coupe.

Anyone? i know they are cast iron...

Prolly the stockers. The only way you're really going to know is by finding the date code, usually looks like "EXXX" or "DXXX". The letter indicates the decade, while the first X would be a number showing which year. For instance, a part with "D8xx" would be a 1978 part. Unfortunately, if I remember correctly the date code is on the part facing the valley. http://www.mustangworks.com/msgboard/frown.gif

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Capri306, Moderator, The Mustang Works Online
1979 Mercury Capri, 5.0L -- C4 -- 2.73
1987 Mustang LX Notch

use this link k
www.partscavengers.com/techlibrary/castingnumbers/sbfheads.asp



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89 with 395 single stage n2o and 373's need suspention upgrade