may be may not if all you have is hot are under the hood it will go up not out so there is not much you can do if you have a small grill open it up with let say two 4 inch holes can not be to bad the way it was from gm on the 50 chevy for the heater intake this was the way my car was and did not get hot till i weld the core sport closed and it seams to get hotter yes it has to get out to but heat will rise to ? in my case i have inner fenders he dose not so in his case this may work in my case i may have to puch holes in my inners thats why i said try the the house type fan to see air movement .after saying all this i do not have all the answers but i had a 66 gtobig block 1/2 filled with block filler bored out to 477 13to1 with no fan on it no core support or inners and it seam to work good it had a small gm electric fan on it .my land lord builds aro batics air planes and i have talk to he but he has not much to say on this and i think he know what air will do. but he has told me it is not that easy. so ???