what heads to run on a 273

btw the op can do whatever, use whichever.

if the closed chamber fits the build, i say do it...

just stating what i have found to be fact.

i really think a marketing gimmic is all it is, they were that way from the get go.

btw...do 426 hemi's 'the bad azz of all mopar' use ''swirl port technology''?

nope.lol