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Can I use a 2 or 3 row aluminum performance honda radiator to keep my 351w cool. It's a stock engine without ac. The problem is space restrictions with this international know I am building. It's just a real bummer I can't use a normal radiator if I do that I have to chop the fenders and hood way too much. I did search the forums but did not find useful info, although I did read a little info on another forum that it can work but more input is always better.
 

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What is the height and width of the Honda core?

It won't matter what the application originally was if the core is big enough. 16" x 22" with 2 row of 1" wide tubes is going to be about the minimum. This size aluminum rad cooled a 450 hp 383 Chevy in an S-10 just fine
 

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We'll ebay lists the dimensions as 16 wide and 14 tall 2 inches deep 2 row and the 3 row is 3 inches deep about 2 inches bigger all around. It looks exactly like an aftermarket rad you'd see in a mustang or the like
 

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16" x 14" seems too small to me, even at 3 rows. 3 rows isn't really much more efficient than 2 rows, as the 3rd row is only seeing hot air from the first two rows which kills most of it's effectiveness.

The Mustang radiator is something like 18-19" x 26-28"...a lot bigger than the Honda. 2 times as big.
 

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I used a Walker radiator about that size for a 'built' 351W in a T-bucket but did use a big electric fan. With that combo, never had a cooling problem even into the 90's. I would suggest no more then a 180* thermostat to get water circulating as soon as possible - a 160* 'stat may not let the engine run warm enough for good combustion. One note - both have to be clean internally too.
 

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I used a Walker radiator about that size for a 'built' 351W in a T-bucket but did use a big electric fan. With that combo, never had a cooling problem even into the 90's. I would suggest no more then a 180* thermostat to get water circulating as soon as possible - a 160* 'stat may not let the engine run warm enough for good combustion. One note - both have to be clean internally too.
did your go hoodless or?
 
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