centralcalvette

My small block manual trans convertible appears to have a small block radiator, anyone know what upper and lower radiator hoses to use ? I want to use molded, not flex hoses.

MelWff

If you have a small block radiator and engine why do you mention BB in your title?

Here is a lower http://willcoxcorvette.com/product_i...oducts_id=1851
Here is a upper http://willcoxcorvette.com/product_i...oducts_id=1848

Do they match in shape what you have now?

Ironcross

go to your local auto parts store!........

centralcalvette

Whoops, car has a BB, but a SB radiator, upper hose is currently a formed hose, lower is a flex, no numbers on the upper formed hose.

LS4 PILOT

factory BB cars had diff radiator or special hoses to do the job.

My BB car uses specfic hoses . Tolerances are close (tight fit)

It would be just trial and error if you don't have the correct radiator to begin with. who could guess?

Ps ...I would buy the correct radiator and go from there.

Silver Vulture

I ordered my in NAPA upper 7689 lower 7687 got the spring inside so it wont colapse on hi suction, by the way they are formed, hope it helps

TheDucci

When I did my big block conversion on my 72 I used the appropriate upper hose for the year car with the options I have. It work great. For the lower I used the stock hose but cut a lot a material of it but fits well.

3JsVette

Take the hoses off and bring them to the parts store.
Any decent counterman will be able to match them up for you.

hugie82

did the same thing on my 74 went from a 350 to 427 BB