ok is there a differance in the 305 radiators and the 350's?? iv got a 305 and im dropping a 350 into it, im hoping the 305 radiator will keep it kool.. any help????

 

Depends, how much HP will you be pushing.

 

275-300 right off the bat

 

I was mainly asking this so someone else would know. My guess is try it, go with a low stat and fan switch setting. There's no need to waste money if you don't have to. And if it doesn't keep it cool just buy a 3 core aluminum one.

 

how much would that be....maybe i can get one at a junkyard, or off ebay..... anyone else got info on this?

 

I bought the Griffine 3core aluminum from Summit for $180. I hear Autozone sells one for like $120. Mine doesn't have a drain plug though.

 

hmmm... i wonder what all the other guys that did a 305-350 swap did

 

The only reason I swapped radiators when I did my motor swap is because I thought the car was overheating because of the old 305 radiator, but it turned out to be something else.

 

oohhh, ok.. yeah my 305 never has heating problems, and i dont see why it wouldnt be able to handle a 350.. im also purchasing a 10 1/2'' electric fan for 20 bucks... hope that will keep it kool as well, if not ill just throw that into the van.

 

Theres no difference 305 to 350. Run what you have now, if it doesnt run hot, dont worry about replacing it.

 

is the 10 1/2'' electric fan big enough for it? and will a 170 degree sensor be ok on it?

 

A single 10.5" fan? No way. You need another fan or a much bigger one. I think my stock single fan is about 17" or 18" in size.

 

ohhh,,....the guy that was gonna sell it to me siad that it was on his 350, and worked fine.