I have a 406 with the superram. Just bought AFR 190 heads and had another $800 in port work done to them. 24# injectors with accel DFI. I'm looking for a roller cam, most likley 224@.050 .536lift intake W/1.6 roller rockers and 230 exh @.050 .544lift w/1.6. 114 L.S. I'll also port and polish the intake system. Anyone have Hp/torque estimates? Also would you change anything?
Thanks for your help!

 

nice work, lexussc94, why so small a runner for
such a large CID? id think the 210 would be
better. is your intake port is 2.10x1.85?
the 383 would be a good 190-195 candidate
but 406? 15% bigger than 350, 8% bigger than
383. unless you not reving past 5800rpm...
injectors are fine.. 26# would be better
just tweak the pressure on 24s, make sure ya
gotta good pump in the tank (walbro 255)this
will keep your injectors happy.
just an observation, again good work!
airdeano

 

Thamks, when I called AFR they rec the 190 heads. I thought it was also to small but I guess its cause of the superram.

 

What are your goals for the motor? Mostly street driving? How high do you want to spin the motor? I think even for a street car, at least use a 200cc head like a Dart Pro-1 or Brodix Track1, #30 injectors possibly #36 and a larger cam. With a 406 you need to go a little bigger all around. I used Brodix heads which are almost 220cc after porting, #30 injectors and a big cam for my stroker. Mine keeps pulling past 7000rpm and has great torque down low. I am expecting 450 rwhp when it is finally tuned. With a 406, you should get 500rwhp and torque with a good set of heads, fully ported superram, long tubes and 4" exhaust.

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87 IROC-Z
Minirammed Solid Roller 377