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198 Intake Manifold, and 077 heads carry the Winters casting.
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Then, as : Fast67VelleN2O stated, use the 198 with whatever date code(cause it is not visible installed) and use the 077's (14011077-GM #) as well as he stated(cause these date codes are not visible installed) and you will be fine.
Take a look at these :
http://cgi.ebay.com/ebaymotors/NOS-BBC-A...A1%7C240%3A1318
I tossed it up back and forth on using a ZL1 block in mine and came to determine, in my mind, that the cast iron block will be much more reliable over 1000's of miles of use.
At this pointe in the game, if you have a real car go for the real stuff.
If it aint real dont worry about it and use what is readily available and build it as such!
We build these to enjoy and to remember, not to fool someone out of their money!
