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bignbad60
09-10-2005, 12:21 PM
Any of you guys have any flow numbers for 333 heads with 209/172 valves ? Thanks Tim
bignbad60
09-14-2005, 08:15 PM
if you don't have #'s for the 333 how about 580's, I assume they would be fairly similiar...Any thoughts?
JimKwiatkowski
09-14-2005, 08:59 PM
Big,here's some flow rate #'s I got out of the Show Cars catalog.

1962-1965 Truck..3819333-flow rate 180 C.F.M. with 2.19/1.72 valves 230 C.F.M.
RCE1962
09-15-2005, 12:39 AM
Jim

Did the Show Cars Catalog print the flow rate #'s for 690's??


RCE1962
JimKwiatkowski
09-15-2005, 07:09 AM
RCE,flow rate for 690's and 583's are 260 C.F.M.
RCE1962
09-16-2005, 01:09 AM
Jim

I wonder how the 690/583 head flow rates compared to later big block GM or those produced by the early Hemi's ..... or F**d. Some unproven local "discussions" as to, that they were very similar.

RCE