Does anyone know what the trickflow as cast heads flow? I see they had a flow chart for the ported ones, but nothing for the as cast heads. I'm just wondering if they would even be worth buying since theyre $500 more. My tuner just recommends the as cast heads since he makes good power on those.
__________________ 2002 Pontiac Trans Am WS6 M6: Wilson 95mm TB, FAST 92mm intake manifold, SLP lid, Jethot coated Pacesetter longtubes, Corsa catback, QTP e-cutout, Powerbond 25% U/D pulley, Hurst billet plus shifter with UMI short stick, SPEC stage 2 clutch, Spohn adjustable panhard bar, Spohn adjustable lower control arms, Elite Engineering billet catch can, PSI 232/232 cam, OEM C5 Z06s and a very unique paintjob.
i dont know the flow numbers but Vengeance and Tick Performance both use the as cast heads in some of their h/c packages so they do make good power, but they usually fall short of the cnc 215's. The upside of the 220's can be ported in the future and they would probably work better than 215's especially on a stroker motor.
__________________ 01 Z28- Magnaflow catback, A4, 4:10's, SLP Lid, more power coming soon......
Well I'm going to a stroker whenever this motor dies. But I could pick up another set when that happens. He made 445whp through as cast heads with a 228/230 cam with a completly stock LS6 intake and stock TB.
__________________ 2002 Pontiac Trans Am WS6 M6: Wilson 95mm TB, FAST 92mm intake manifold, SLP lid, Jethot coated Pacesetter longtubes, Corsa catback, QTP e-cutout, Powerbond 25% U/D pulley, Hurst billet plus shifter with UMI short stick, SPEC stage 2 clutch, Spohn adjustable panhard bar, Spohn adjustable lower control arms, Elite Engineering billet catch can, PSI 232/232 cam, OEM C5 Z06s and a very unique paintjob.
does anyone know if trickflow has a cnc program for the as cast heads if you ever wanted to open them up. Or are there any other companies such as TEA that have a cnc program for the 220's?
__________________ 01 Z28- Magnaflow catback, A4, 4:10's, SLP Lid, more power coming soon......
I have the As cast with the upgraded springs and milled them to 60cc's , I got them from vengeance. The combustion chamber is cnc'd but the only thing that isn't are the runners and I see room to grow in if they get hogged out!
Gotta love those TF's
__________________ 01 Ws6, m6, ASC#618 of 1583, 40k Miles, Slp lid, 85mm Maf, Ported FAST 90, UMI 90mm TB, Lucas 38lb inj's, Trick Flow 220cc heads milled to 60cc's, 7.5 Comp Pr's, VRX5 cam, Ls7 lifters, H.S. 1.7 rockers, Ls2 TC, Melling HO OP, PB 25% UDP, Pace Lt's, Pace Y, UMI K-member, UMI T/A relocator, UMI SFC's, UMI LCA's, UMI adj. PHB, SLP T/A, Koni 4th Gen's, Eibach prokit, MagnaFlow CB, Tuned @ StraightLine 457 HP and 405 Ft Lbs
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in the for sale section someone has some 220's that are ported but by hand, i guess that works ok but if the workmanship sucks, so do your heads for the rest of time you have them.
Since i dont know any genius porters in my area, and the only other person i really know of is Tony Mamo (I dont know if he would do TFS since he's AFR). I would rather stick with the R&D companies put into a good CNC program.
__________________ 01 Z28- Magnaflow catback, A4, 4:10's, SLP Lid, more power coming soon......
Trickflow as cast VS ported flow #s? 
01 Ws6, m6, ASC#618 of 1583, 40k Miles, Slp lid, 85mm Maf, Ported FAST 90, UMI 90mm TB, Lucas 38lb inj's, Trick Flow 220cc heads milled to 60cc's, 7.5 Comp Pr's, VRX5 cam, Ls7 lifters, H.S. 1.7 rockers, Ls2 TC, Melling HO OP, PB 25% UDP, Pace Lt's, Pace Y, UMI K-member, UMI T/A relocator, UMI SFC's, UMI LCA's, UMI adj. PHB, SLP T/A, Koni 4th Gen's, Eibach prokit, MagnaFlow CB, Tuned @ StraightLine 457 HP and 405 Ft Lbs
