View Full Version : flow numbers
ratfink1969
09-04-2007, 08:03 PM
just wondering if anybody had flow numbers for the big chevy 781 heads, stock or modified.
Ryan
edvancedengines
09-05-2007, 01:16 AM
I have flow test numbers for I am thinking it was the 049 heead which is the same in all respects.
It is a comparrison test of the Oval Port 049 vs the high performance square port with each head having same valves and same minor port work.
Ed
http://i22.photobucket.com/albums/b327/Ed-vancedEngines/Flow%20Tests%20Factory%20heads/83d8a224.jpg
http://i22.photobucket.com/albums/b327/Ed-vancedEngines/Flow%20Tests%20Factory%20heads/3c5e3ccd.jpg
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ratfink1969
09-05-2007, 03:54 AM
thanks
edvancedengines
09-05-2007, 10:44 AM
I am sorry those pics came out so small. If you can't get themk to blow up bigger, email me, and I will see if I can find and send a bigger copy.
Ed
firestone
09-05-2007, 03:15 PM
Here is a site with a bunch of flow numbers. There are nubers (stock and ported with larger valves) for 049 heads which are pretty much the exact same thing as the 781's
http://users.erols.com/srweiss/tablehdc.htm#BBChevy
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