I know this is off topic in the worst way..(Pontiac)..But I have no Idea were to look..I have a set of what I have been told is special(Key word TOLD)...(Pontiac)#16 D port heads w/guide plates and screw in studs...The casting date is D188..Anyone have any idea what there worth......Or if indeed they are special what makes them so........Thanks in advance

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Retored 76 LE Trans Am 455 4 speed..# matching FOR Sale or Trade for a 68 or 69 big block camaro in good shape
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Restored 68 Camaro R/S 327 4 speed
http://community.webshots.com/user/badcaiman

www.classicalpontiac.com (http://www.classicalpontiac.com)

This (or something similar) would be your best bet

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375hp 78 Chevy truck
77 Chevy Nova
95 Chevy Lumina 3.4L
and building a 78 Nova

didn't all pontiacs have guideplates and screw in studs? i think the #16 head is the one they put on all the later 350 and 455 engines. but i could be wrong. they were different from 350-455. dfferent valves and chamber sizes. different ports. too.either will bolt where the other was,but will not work right...i think...
i knew this about 2 and a half years ago when i had a 78 trans am.but i traded it for my nova, and now i forgot.

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1971 Nova(looks like 69 camaro from underneath!)
355sb, vortec heads, HOT cam,T-10 tranny, 3.70 gears 16" IROC wheels