Stromberg Model "48"
for the jet size .048". It was standard equipment
and trucks. Most of these carbs are not marked
48, but some (not all) have the venturi size
1-1/32" stamped on the side of the bowl. This
carb looks identical to the 97 and in fact uses
the same base. The bases are marked EE-1.
The top of the 48 will fit the 97 and many 97's I
find have 48 tops and 48s will have the 97 tops
although the choke linkage ball detent is not
found on the 48 top. The 48 makes a great hot
rod carb because of increased cfm (approx.
170) over the 155 cfm of the "97". The actual
flow bench checks show that in test the carb flow
rates are not real consistent and a good flowing
97 will actually flow almost the same as some
48s. This is caused by the different casting
molds used by Stromberg and sub-contractors
over the years not being consistent. Die casting
was a new thing to the industry back then and
they had a few problems. I like the 48 carb for
most overhead valve setups and very hot
flathead dual intakes. They are gaining in
popularity fast today as guys find out just how
good they perform with the extra 1/16" of venturi
(31/32" vs 1-1/32"). The good cores are getting
harder to find due to the growing demand for
the"48" carbs today.
Carb identification 48's / 97's
|Carbs - Quality re-manufactured / rebuilt carbs and
setups. Specializing in Stromberg 97 / 48 / 81's