Those of you saying the port mismatch doesn't matter need to look at the picture of the gasket on the head a LOT better. There's no way that's gonna seal across the bottom of that port. Ain't happenin.
People don't always read all the responses sometimes.. or it's selective reading.lol
Learned this 20 yrs ago on a 68 barracuda 318 car in ridgecrest ca. Was up there gettin a slant head worked on at krams auto machine, big valve install. My friend had tried 2 diff headers, hedman... then hooker. Hookers were the ones that sealed up properly. Hedmans and others based on those are nice n big.. for a hogged out 360 exh port that is..but dont seal like they should on a early 273/318.
Now if OP spent extra ..he could get Doug's that would have the correct small port window flange and also solve the problem.
$234 vs $600+
