Anybody interested in some real-world Victor Jr. cyl head flow numbers? I am having a guy named Buddy Rawls spec a custom camshaft for my new 351W for the Fairlane. He sent me a questionnaire asking all sorts of technical questions, like flow #s, intake port runner length, port and chamber CC's, along with all the other basic info one needs to pick a camshaft. Anyway, I CC'd the ports and chamber myself, and had it flow tested. Here are the results:Lift/Int CFM/Exh CFM
.100"/58.7/67.3
.200"/123.2/86.9
.300"/178.5/145.3
.400"/223.8/172.8
.500"/259.3/184.5
.600"/283.6/191.5
Flowed at 28" H2O, 4.25" bore, no exh. stub
Not too bad, I think. My heads are box-stock, pt# 7718 (they were purchased in 2000). I wish he had gone to .700", to see when the flow tapered off. He said they flowed extremely straight (very little turbulence) and he was impressed.
The intake port volume measured in at 207CC, exhaust at 74CC, and chamber volume right at 60CC.
Just thought I would pass the info along from an impartial source (i'm not a manufacturer or magazine article, so i'm not trying to sell anything). You can read more about Buddy Rawls' camshaft philosophy (very interesting!) here: http://www.wighat.com/fcr3/index.html
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Kyle Laramore
'63 Fairlane: Under Reconstruction
'66 Mustang Coupe: 289, Offy intake, Crane Blazer hyd. camshaft, Autolite 4100 carb, Headman long tube headers, manual, 3.80 gears
'70 Mach 1: 351C-2V, Weiand intake, 750 holley, Flowtech long-tube headers, MSD ignition, C6 trans, CJ converter, 9" track-loc rear, 3.50 gears, Flowmaster 2.5" mandrel exhaust w/ 3-chamber mufflers
Words to build engines by: "Never Assume!"
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posted 03-29-2004 02:59 PM
