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: Chamber CC's of BBC #343771 heads? SILVERSS454 Mar 26th, 06, 2:30 PM I checked Mortec but, all that is listed there is that they are truck heads and the timeframe in which they were built. They are NOT "peanut port" heads. They are standard large ovals but, I need to know the chamber CC's. They look almost identical to #215's and #290's. Any info appreciated! mr. horsepower Mar 26th, 06, 3:37 PM any casting questions go to mortec.com i went there and this is what is listed 68-86 oval open 366t 427t 454 t=tall deck it doesnt say cc's though sorry pdq67 Mar 26th, 06, 4:31 PM You really need to cc them b/c heads vary all over the place. This way, you will know for sure just what they are. And I would cc both intake ports AND one exhaust port too for the heck of it!! ("Good" and "bad" intake ports deal here)... pdq67 SILVERSS454 Mar 26th, 06, 5:39 PM Yeah pdq, I will definately cc them but, just wanted to know what the baseline average on these heads is. Like I said before, I think visually they look identical to the "semi-open" design of the #290 and #215 heads. However, the build date on the heads says they were built in 1975 so, I would have expected them to look similiar to #049's or #781's. Curious. SILVERSS454 Mar 27th, 06, 6:38 PM bump Anyone else have any info? pdq67 Mar 27th, 06, 8:26 PM About all I have.... http://www.users.interport.net/s/r/srweiss/tablehdc.htm#BBChevy pdq67 | ||