WebFeb 11, 2016 · This one was ported with 2.02"/1.6"combo. Three angle valve job and no chamber work. They flow more than I expected. Thanks Charlie You do not have the required permissions to view the files attached to this post. Servedio Cylinder Head Development 631-816-4911 9:00am - 9:00pm EST vortecpro Guru Posts: 1461 Joined: Sat Apr 25, 2009 … WebSummit Racing™ Vortec Cylinder Heads Summit Racing Part Number: SUM-151124 UPC: 190861096189 Combustion Chamber Volume (cc): 67 Intake Runner Volume (cc): 175cc Cylinder Head Style: Assembled Cylinder Head Material: Cast iron Intake Port Shape: Rectangular Intake Valve Diameter (in.): 1.940 in. CNC-Machined Combustion Chamber: No
AFR 190cc Vortec SBC Eliminator Street Cylinder Head
WebMay 2, 2003 · Porting GM's Iron Vortec Heads ... While one person may sculpt righteous flow from lowly iron, another may turn a trick head to trash. Ported heads are a wildcard, … WebFeb 25, 2009 · Its the one real bottleneck with the Vortec heads. But its when they are ported that they really shine. They can flow some scary numbers after porting by someone who knows what they are doing. 240+cfm isn't unusual even for a novice. And its not hard to get the D-ports over the 200cfm mark either. port pirie to port hughes
Ported Chevy 487x heads - Don Terrill’s Speed-Talk
WebFeaturing wide-open intake runners, efficient combustion chambers, and a high-performance valve job, these heads deliver all of the power-building airflow you need. Made from … WebMay 22, 2011 · The heads work really good in the low lift but are Air Speed limited after .600. A really good 906 head with a 2.05 intake valve will flow 270-276 cfm @ .700. They are a great head that will make really good power in the right engine combo. Don't Go crazy on the chamber it will screw things up fast. WebA new stock Chevy “Mexico” Vortec head will flow in the 210 to 215 cfm range on the intake and about 145 cfm on the exhaust. After our “CNC – UnderCover Porting” the Mexican … port pirie trotting club