Anyone have any experience with SBC bowtie heads on a street car? what's the difference between the different phases??
these heads have angled spark plugs and do not have the heat cross over. They are over the counter racing heads. They don`t flow too much better than 186`s stock but with some good porting will definately out run the camel hump heads. They first started out as the "292 turbo" head. I had a set of those that were ported ad flowed and the numbers were pretty impressive for such a small runner. They started out at 185cc`s.I'm looking at a pair of 14011034 cast iron bowties. I know they outperform the 186 head but before I commit i need to know header limitation and heating the choke coil, (divorced choke, 4053 holley 780 carb), otherwise I'm certain these head rock ported or unported!!