what heads to run on a 273

1wild&crazyguy said
...
if you put them side by side, you'll see it right off the bat.

btw, no 318 '302' ,.or any other stock 318 head , is gonna flow more air than a stock 360 head....and no way is a closed chamber alone gonna trump the 35 cfm that the 360 head has over the 318 head.

318 wether 302 or 675 flows around 175 cfm
360 small valve head, any of them..flow around 210-215 cfm

i just want people to know whats what.

Maybe IQ52 can weigh in on this?

AMEN!!

The largest intake valve I would run in a 273 is the 1.88, and then I would mock up the heads on your block and check it. I used offset dowels to locate a set of 72 340 heads on my favorite 273. I'll also add that the chamber cc's are not that far off from 340/360 to 273/318. At .040 off the block side of a 340/360 head you are down to 65 cc's.