Which Heads for 306?

1sicklx · 01-27-2007, 05:35 AM

I'm trying to decide between the AFR 165 & 185 heads.

The rest of the setup will include the following:

306 shortblock
AFM B-31 Cam
Cobra Intake w/ported lower

May add a KB blower in the future or put a plate kit on it. This is a daily driven street car & will remain NA for the immediate future.

Also trying to decide between 1 5/8" and 1 3/4" Headers.

slvrbullit · 01-27-2007, 08:42 AM

If gonna blower in the future I would go with the 185's.

QWKSNKE · 01-27-2007, 09:05 AM

If you were doing an aftermarket block I would say 185's also.

But my 165's were able to make enough power for the stock block limits

TheJeanyus · 01-27-2007, 11:13 AM

+1 for the 185's.

qkjuicedpony · 01-27-2007, 01:08 PM

i would either use the 185's or a set of brodix st 5.0's.i would also use the 1 5/8 headers and use a plate.....that kb doesnt make a lot of power on a pushrod motor

Blown 5.0 · 01-27-2007, 02:39 PM

185s especally if a power adder is in the future, also remember that they offer a blower cnc job for the same price.

coupe · 01-27-2007, 08:41 PM

Have you looked at the Edelbrock Victor Jr? It's in the same price range and has a 210cc Intake port with a 2.05" valve. It's a badass all-around head...especially with a blower later.

If it has to be AFR, get the 185 and do something with the exhaust port...maybe the "blower CNC job" (blower-job

) mentioned above will take care of it.

ncontt · 01-27-2007, 09:39 PM

lol, he said Blower job...

Blown 5.0 · 01-28-2007, 06:56 AM

I have personally saw the 165s, 185s 205s, on the flow bench, in my opinion these heads are the best buy. They also come very close to their advertised flow numbers,Without any correction . They also have very good quality parts, (valves, retainers, springs,ect) We have four cars running different stages of these heads and no one has been disappointed.

1sicklx · 01-28-2007, 07:08 AM

Thanks for the input guys

01-27-2007, 05:35 AM	#1
1sicklx BamaMafia 4 Life Join Date: Feb 2005 Location: Lake View, AL Posts: 2,577	Which Heads for 306? I'm trying to decide between the AFR 165 & 185 heads. The rest of the setup will include the following: 306 shortblock AFM B-31 Cam Cobra Intake w/ported lower May add a KB blower in the future or put a plate kit on it. This is a daily driven street car & will remain NA for the immediate future. Also trying to decide between 1 5/8" and 1 3/4" Headers. __________________ 1999 Ford F-150 Lariat

01-27-2007, 08:42 AM	#2
slvrbullit Super Moderator Join Date: Dec 2004 Location: on the water Posts: 1,280	If gonna blower in the future I would go with the 185's. __________________ 2012 Jeep Wrangler Unlimited--- too many mods to list, about to be sitting on 1 ton axles. 2000 Ford F-350 Dually Lariat LE Crew Cab Short Box 7.3 auto 168,000 miles

01-27-2007, 11:13 AM	#4
TheJeanyus Administrator Join Date: Dec 2004 Location: Huntsville, AL Posts: 14,774	+1 for the 185's. __________________ 1998 Mustang GT Coupe - World's Slowest Racecar 2005 Toyota 4Runner SR5 V8 2013 Volkswagen Jetta Sportwagen TDI

01-27-2007, 02:39 PM	#6
Blown 5.0 Senior Member Join Date: Jan 2006 Location: Looking for more ways to add BOOST Posts: 167	185s especally if a power adder is in the future, also remember that they offer a blower cnc job for the same price. __________________ Hauling A** on Pump Gas !!!!!

01-27-2007, 08:41 PM	#7
coupe Super Moderator Join Date: Dec 2004 Posts: 6,313	Have you looked at the Edelbrock Victor Jr? It's in the same price range and has a 210cc Intake port with a 2.05" valve. It's a badass all-around head...especially with a blower later. If it has to be AFR, get the 185 and do something with the exhaust port...maybe the "blower CNC job" (blower-job ) mentioned above will take care of it. __________________ " If you can't explain it simply, you don't understand it well enough. " - Albert Einstein

01-27-2007, 09:05 AM	#3
QWKSNKE 3v's are slow Join Date: Dec 2004 Location: Here and There Posts: 17,152	If you were doing an aftermarket block I would say 185's also. But my 165's were able to make enough power for the stock block limits

01-27-2007, 01:08 PM	#5
qkjuicedpony Dayuuuuuuum!!!!! Join Date: Dec 2004 Location: Dallas GA Posts: 2,933	i would either use the 185's or a set of brodix st 5.0's.i would also use the 1 5/8 headers and use a plate.....that kb doesnt make a lot of power on a pushrod motor

01-27-2007, 09:39 PM	#8
ncontt pro-jackstand racer Join Date: May 2005 Location: Milner, Ga Posts: 2,473	lol, he said Blower job... __________________ And God created Neil Peart so that lightning would make sense to the world. ~~~~~~~~~~~~~~~~~~~~~~~~~~~

01-28-2007, 06:56 AM	#9
Blown 5.0 Senior Member Join Date: Jan 2006 Location: Looking for more ways to add BOOST Posts: 167	I have personally saw the 165s, 185s 205s, on the flow bench, in my opinion these heads are the best buy. They also come very close to their advertised flow numbers,Without any correction . They also have very good quality parts, (valves, retainers, springs,ect) We have four cars running different stages of these heads and no one has been disappointed. __________________ Hauling A** on Pump Gas !!!!!

01-28-2007, 07:08 AM	#10
1sicklx BamaMafia 4 Life Join Date: Feb 2005 Location: Lake View, AL Posts: 2,577	Thanks for the input guys __________________ 1999 Ford F-150 Lariat