Thanks for the reply and the info. They both look like good heads. I spoke with Best Machine about hemi heads and they suggested the Victor because of price and they come with bigger valves, but does bigger valves guarantee more flow in a hemi head? The stage V has a 168cc chamber and the Victor has 170cc chambers. Looks like the stage v head cnc'd flows 407cfm@.700 and the Victor flows 450cfm BM tells me. Its really hard to find much tech like flow numbers and such about the Hemi engine. Surprised there is not more info out there. Must be top secrete.
Dave, This is from 2009 FHO cnc Stage V replacement with 2.30 and 1.90 valves. I was offered the same valve size option from Modern but did't choose to do that. Just a little more info for you.
FHO CNC Ported Stage V Replacement Heads. For mild to wild street strip engines.
FHO CNC Replacement Head- Notes- application Blown Pro-Street Hemi - Use 45 degree wide seats for durability.
Note - Use stock intake and exhaust port openings.
Exhaust Port with 1.90" Valve Intake Port with 2.30" Valve
Flowed at 28" without tube. Flowed at 28"
.100" 61 .100" 75
.200" 135 .200" 159
.300" 187 .300" 248
.400" 230 .400" 315
.500" 258 .500" 384
.550" 267 .550" 412
.600" 279 .600" 435
.650" 287 .650" 453
.700" 295 .700" 467
.750" 298 .750" 469
.800" 301 .800" 471
Stage V Replacement Head with FHO CNC Porting.
Tests performed on Superflow 600 with FlowCom.
4.500" Bore Plate
Combustion Chamber 168cc
Intake Volume 241cc
Exhaust Volume 118cc
Intake Valve 2.30" Ferrea Titanium Tulip 11/32" Stem
Exhaust Valve 1.90 Ferrea Inconel TF Stainless Tulip 11/32" Stem
Mark
