84_302

thats the casting number of these heads i found for twenty bucks.. are those the 351 heads that will improve my 302? I remember only some kind of 351 heads help but not sure what ones

mjr46

^^^^^^^^^yes dooe heads are comparable to gt-40 heads...but IMO they are only worth it if someone has lightly ported them and installed larger valves..I have c9oe heads on my 66 which are the same as DOOE heads

84_302

Well for 20 bucks ill pick em up... with me and my dremmle ill port em myslf and theyll be better than ever!!!

































Kidding

mjr46

cool, the dooe heads will raise compression slightly as they have a slightly smaller cumbustion chamber than stock e7 heads

84_302

i hvae 289 heads on it now... which is better the 351W or 289?

mjr46

depends on which 289 heads you have?? the heart shape cumbustion chamber 289 heads will carry a higher compression than the dooe heads, so if those are the 289 heads you have, I'd port them and put larger valves in those if you can get it done cheap

84_302

i have to tear em off to check or will you kknow if I say they are from 1965?

mjr46

no^^^^^^^^cause there were a few variations.......post a pick of them when you get them off of the combustion chambers and we can analyze them

84_302

haha will do gotta finish my c4 swap im in the middle of first though also another question i want to buy an engine to play with over the winter what year motors ( not like past 93) are the best to slap bolt ons too?

mjr46

any roller block set up from like 85 -92 will be fine as those are the years that had forged pistons stock, as far as power output between the years, not much difference