Afr 205

cucho · 09-24-2004, 09:41 PM

Does any one know the flow numbers of a AFR 205 part # 1450 with 2.08 and 1.60, unported, i want to know if this head need the CNC port to work properly or I can used it in my 310 c.i. during i made my 347.

420nitro · 09-25-2004, 03:15 PM

Hey Cucho whats up/
Yea you can use the 205 heads on your 306 but would need a Custom ground cam made up to make it work correctley w/ your 306. Or use a nice size power adder.

I dont have the flow fiquires on me but I think they flow just 10-15 cfm less then the 225.
Hope this helps.

cucho · 09-25-2004, 03:40 PM

Hey 420nitro, the thing is that the AFR 205 with out the porting work, look a small head, my question is that this head need the port work to breathe good or can i leaved like it is.

420nitro · 09-25-2004, 04:47 PM

That AFR-205 head the way it comes, is more then enough for a HEALTHY 306 and 347!
You really don't need any work to them unless your trying to go deep into the 10's or faster. More info on your new combo would be alot of help.

jonnyk · 09-25-2004, 09:00 PM

Way too big for a sub-7000 rpm 306. Just about right for a high revving, air moving 347.

cucho · 09-27-2004, 11:55 AM

This is my combo:
11.5 compresion
Hyd. Roller 236, 248 at 0.50 and 574, 595 lift
Victor Jr. Intake
750 carburator with a proform main body
1 3/4 Hooker Headers.
MSD ignition Sistem DIST and 6AL
C4 with and ATI converter 4200 stall by foot brake
456 rear end with 26 slick.

My car is running rigth now 11.50 with a cylinder heads World Roush 200(iron) with 2.02 and 1.60, and 60 cc. with middle porting 250 cfm at 600 lift intake and 190 cfm at 600 lift exhaust. So if i change to the AFR 205 with out porting job is gone a run more or if gone a stay where it is, the thing is that the AFR are for 347 project but for now im gone a put into my 306, because i sold the world heads. What u guys thing.

420nitro · 09-27-2004, 06:32 PM

Go with It!
The car might slow down a little. The car will respond to nitrous very well if the lobe seperation is close. Other then that, when you put in the 347...make sure the compression is closer to the 11.5--12.5 to 1 area.

Other then that you might want to put on a smaller carb to pick up some bottom end response.

Those AFR 205 heads flow almost 50 cfm more, out of the box then the ported heads you just sold! If you were going to stay with a 306ci motor, I would recommend the AFR 185, but no need to spend your $$$ twice.

Good Luck and let us know how it turns out

cucho · 09-28-2004, 12:30 PM

420nitro, a small carb like a 650 with the proform main body sounds good. You thing my 750 is too much.

420nitro · 09-28-2004, 05:27 PM

Yes, I think a 650 (Race style 4150) would be good up to the 6,500 rpm range for your car.

cucho · 09-30-2004, 10:17 AM

Also i get the AFR bare, ill thing to put the manley severe duty valves, and i got this question , the guide plates that AFR uses is diferent to other brands or i can use a comp or crane guide plates.

420nitro · 09-30-2004, 10:29 AM

PM sent

red82gt · 10-12-2004, 11:34 AM

Bare AFR 205's have a 190cc runner, 55cc chambers, no valve seats, guides, etc. ZBy the time you get them fully assembled and a 3 angle valve job, you'll have spent more than a set of complete 205's and won't have the CNC work.
You'd be better off with 185's or just buying the 205's complete.

A 650 with a proform main body will be identical to a 750 with a proform main body. The 650, 700, 750, and 800 share the same base plate, all 4150 metering blocks are the same and so are the bowls.

09-24-2004, 09:41 PM	#1
cucho Registered Member Join Date: Oct 2003 Location: Mexico Posts: 50	Afr 205 Does any one know the flow numbers of a AFR 205 part # 1450 with 2.08 and 1.60, unported, i want to know if this head need the CNC port to work properly or I can used it in my 310 c.i. during i made my 347.

09-25-2004, 09:00 PM	#5
jonnyk Being stroked is great Join Date: Oct 1998 Location: Alberta, Canada Posts: 772	Way too big for a sub-7000 rpm 306. Just about right for a high revving, air moving 347. __________________ Novi 2000 now spinning off the snout of the 331... Mods Pics

10-12-2004, 11:34 AM	#12
red82gt Sober voice of Reason Join Date: Nov 1998 Location: Kelowna, B.C., Canada Posts: 1,514	Bare AFR 205's have a 190cc runner, 55cc chambers, no valve seats, guides, etc. ZBy the time you get them fully assembled and a 3 angle valve job, you'll have spent more than a set of complete 205's and won't have the CNC work. You'd be better off with 185's or just buying the 205's complete. A 650 with a proform main body will be identical to a 750 with a proform main body. The 650, 700, 750, and 800 share the same base plate, all 4150 metering blocks are the same and so are the bowls. __________________ 393W: AFR 205's, hydraulic roller, TKO600.

09-25-2004, 03:15 PM	#2
420nitro Registered Member Join Date: Nov 2003 Location: Rockford Posts: 596	Hey Cucho whats up/ Yea you can use the 205 heads on your 306 but would need a Custom ground cam made up to make it work correctley w/ your 306. Or use a nice size power adder. I dont have the flow fiquires on me but I think they flow just 10-15 cfm less then the 225. Hope this helps.

09-25-2004, 03:40 PM	#3
cucho Registered Member Join Date: Oct 2003 Location: Mexico Posts: 50	Hey 420nitro, the thing is that the AFR 205 with out the porting work, look a small head, my question is that this head need the port work to breathe good or can i leaved like it is.

09-25-2004, 04:47 PM	#4
420nitro Registered Member Join Date: Nov 2003 Location: Rockford Posts: 596	That AFR-205 head the way it comes, is more then enough for a HEALTHY 306 and 347! You really don't need any work to them unless your trying to go deep into the 10's or faster. More info on your new combo would be alot of help.

09-27-2004, 11:55 AM	#6
cucho Registered Member Join Date: Oct 2003 Location: Mexico Posts: 50	This is my combo: 11.5 compresion Hyd. Roller 236, 248 at 0.50 and 574, 595 lift Victor Jr. Intake 750 carburator with a proform main body 1 3/4 Hooker Headers. MSD ignition Sistem DIST and 6AL C4 with and ATI converter 4200 stall by foot brake 456 rear end with 26 slick. My car is running rigth now 11.50 with a cylinder heads World Roush 200(iron) with 2.02 and 1.60, and 60 cc. with middle porting 250 cfm at 600 lift intake and 190 cfm at 600 lift exhaust. So if i change to the AFR 205 with out porting job is gone a run more or if gone a stay where it is, the thing is that the AFR are for 347 project but for now im gone a put into my 306, because i sold the world heads. What u guys thing.

09-27-2004, 06:32 PM	#7
420nitro Registered Member Join Date: Nov 2003 Location: Rockford Posts: 596	Go with It! The car might slow down a little. The car will respond to nitrous very well if the lobe seperation is close. Other then that, when you put in the 347...make sure the compression is closer to the 11.5--12.5 to 1 area. Other then that you might want to put on a smaller carb to pick up some bottom end response. Those AFR 205 heads flow almost 50 cfm more, out of the box then the ported heads you just sold! If you were going to stay with a 306ci motor, I would recommend the AFR 185, but no need to spend your $$$ twice. Good Luck and let us know how it turns out

09-28-2004, 12:30 PM	#8
cucho Registered Member Join Date: Oct 2003 Location: Mexico Posts: 50	420nitro, a small carb like a 650 with the proform main body sounds good. You thing my 750 is too much.

09-28-2004, 05:27 PM	#9
420nitro Registered Member Join Date: Nov 2003 Location: Rockford Posts: 596	Yes, I think a 650 (Race style 4150) would be good up to the 6,500 rpm range for your car.

09-30-2004, 10:17 AM	#10
cucho Registered Member Join Date: Oct 2003 Location: Mexico Posts: 50	Also i get the AFR bare, ill thing to put the manley severe duty valves, and i got this question , the guide plates that AFR uses is diferent to other brands or i can use a comp or crane guide plates.

09-30-2004, 10:29 AM	#11
420nitro Registered Member Join Date: Nov 2003 Location: Rockford Posts: 596	PM sent