what's the difference between the 2.5 and 3.0 radiators?

 

i have two H6 Outbacks and was wondering if the all aluminum two row radiators that are readily available would fit in the 3.0?

 

i assume the fitment of the radiator into the radiator supports is probably identical since the wagon bodies are the same - but not sure about hose sizes...anything else?

I'm not sure, but I do know that when we did the engine in my '02 LL Bean, we had to get the radiator from the dealer. They were the only place that had it. (Oh great...another SVX-type car!)

 

Interesting note: I sold my SVX about 3 years ago to a guy in CO Springs. My grandson spotted it in Provo, UT last week. Identification positive due to the unusual pattern of spotting on the hood. Small world.)

4cyl radiator sits on mounts bolted to the lower support. dropped down, and into the engine bay a bit.

 

6cyl radiator is poked up into the snout more, up on the support itself.

 

additionally, the H6 has seperate return lines for each side of the engine. There are 2 upper hoses, one at either side(1-1/4") and one feed at the bottom back to the waterpump(1-1/2")

 

You'd have to "T" the uppers toghether to use a 4cy radiator.

additionally, the H6 has seperate return lines for each side of the engine. There are 2 upper hoses, one at either side(1-1/4") and one feed at the bottom back to the waterpump(1-1/2")

 

You'd have to "T" the uppers toghether to use a 4cy radiator.

 

Crack, that sounds annoying to work around, but we'll see. Thanks Gloyale.

 

Best way to "T" those two at the top?

I'll try and find a 4 cylinder radiator to compare fitment - height/width.

 

I don't see any all aluminum radiators available for H6's.

Edited May 31, 201213 yr by grossgary

Best way to "T" those two at the top?

 

There are some GM cars (buick, chevy, pontiac, olds) with the 3300 and 3800 engines that have a hose with a plastic "T" formed into them. IIRC, 2 sides are smaller, and the other is larger. Maybe look into something like that?