Posted By: cesar perez
aluminum heads - 01/19/13 05:23 AM
what is the best flowing bb heads that are not raised port design and what matching tunnelram the application is street car 
aluminum heads
Posted By: StealthWedge67
Re: aluminum heads - 01/19/13 05:36 AM
I don't have numbers to back these suggestions, but I gotta believe the Indy EZ heads flow about as well as any standard port window designs. If you really want a tunnel ram, I've read in the past that the Weiand Hi-Ram is a pretty good piece equimpment, with the M1 tunnel ram being right there.
Posted By: LaRoy Engines
Re: aluminum heads - 01/19/13 08:29 PM
OOTB flows from the same flowbench for the (1) early Stealth, (2) late Stealth, (3) RPM, (4) Indy EZ
............(1)...........(2)..........(3)...........(4)
.100........66............73...........74............66
.200.......142...........141.........148..........127
.300.......209...........214.........209..........181
.400.......240...........245.........254..........232
.500.......255...........262.........276..........272
.600.......267...........276.........287..........299
.700.......268...........281.........291..........315
Even with the Indy's larger 2.19" intake valve vs the others 2.14" valve, there is no OOTB advantage to the Indy EZ until you get over .500" lift. In fact, if you look, they even don't flow as good up to .400" lift.
Keep in mind that the Stealth and the Edelbrock RPM can be hand ported to 340+ cfm and the EZ can be ported to 360+ cfm. In order to do so, it is generally required to open the ports to Max Wedge height.
Mid 330 cfm flows can be had, from the RPM and Stealth, with a stock intake port window.
............(1)...........(2)..........(3)...........(4)
.100........66............73...........74............66
.200.......142...........141.........148..........127
.300.......209...........214.........209..........181
.400.......240...........245.........254..........232
.500.......255...........262.........276..........272
.600.......267...........276.........287..........299
.700.......268...........281.........291..........315
Even with the Indy's larger 2.19" intake valve vs the others 2.14" valve, there is no OOTB advantage to the Indy EZ until you get over .500" lift. In fact, if you look, they even don't flow as good up to .400" lift.
Keep in mind that the Stealth and the Edelbrock RPM can be hand ported to 340+ cfm and the EZ can be ported to 360+ cfm. In order to do so, it is generally required to open the ports to Max Wedge height.
Mid 330 cfm flows can be had, from the RPM and Stealth, with a stock intake port window.
Posted By: CSK
Re: aluminum heads - 01/19/13 09:41 PM
Quote:
OOTB flows from the same flowbench for the (1) early Stealth, (2) late Stealth, (3) RPM, (4) Indy EZ
............(1)...........(2)..........(3)...........(4)
.100........66............73...........74............66
.200.......142...........141.........148..........127
.300.......209...........214.........209..........181
.400.......240...........245.........254..........232
.500.......255...........262.........276..........272
.600.......267...........276.........287..........299
.700.......268...........281.........291..........315
Even with the Indy's larger 2.19" intake valve vs the others 2.14" valve, there is no OOTB advantage to the Indy EZ until you get over .500" lift. In fact, if you look, they even don't flow as good up to .400" lift.
Keep in mind that the Stealth and the Edelbrock RPM can be hand ported to 340+ cfm and the EZ can be ported to 360+ cfm. In order to do so, it is generally required to open the ports to Max Wedge height.
Mid 330 cfm flows can be had, from the RPM and Stealth, with a stock intake port window.
heyoldguy late stealths ? thanx charlie
Posted By: 1stBxMopar
Re: aluminum heads - 01/19/13 10:22 PM
I prefer the Indy EZ, I have run the standard port window with a tunnel ram and also max wedge port window with a single dominator. The heads were hand ported in both applications and got great flow numbers.
Posted By: 1stBxMopar
Re: aluminum heads - 01/19/13 10:25 PM
Another of the tunnel ram with standard port window
Posted By: LaRoy Engines
Re: aluminum heads - 01/20/13 01:42 AM
Quote:Quote:
OOTB flows from the same flowbench for the (1) early Stealth, (2) late Stealth, (3) RPM, (4) Indy EZ
............(1)...........(2)..........(3)...........(4)
.100........66............73...........74............66
.200.......142...........141.........148..........127
.300.......209...........214.........209..........181
.400.......240...........245.........254..........232
.500.......255...........262.........276..........272
.600.......267...........276.........287..........299
.700.......268...........281.........291..........315
Even with the Indy's larger 2.19" intake valve vs the others 2.14" valve, there is no OOTB advantage to the Indy EZ until you get over .500" lift. In fact, if you look, they even don't flow as good up to .400" lift.
Keep in mind that the Stealth and the Edelbrock RPM can be hand ported to 340+ cfm and the EZ can be ported to 360+ cfm. In order to do so, it is generally required to open the ports to Max Wedge height.
Mid 330 cfm flows can be had, from the RPM and Stealth, with a stock intake port window.
heyoldguy late stealths ? thanx charlie
Coupla years ago when I was buying Stealths, they were not hand blending the seats into the aluminum bowls like the last four sets I have received. On the later Stealths it appears they are trying to emulate the blending that Edelbrock has been doing on the RPM heads.
Posted By: Quicksilver440
Re: aluminum heads - 01/20/13 02:29 AM
intresting info...thanks for sharing. 