Cylinder Head opinions

Hey, I'm uilding a new engine for the Cougar. I have not decided on the heads yet. The heads that are on the engine in the car now are AFR 185's out of the box. They work pretty well. Do you guys thing there is any need to change the heads that I'm using? Is there a better head for a 306 as a race motor. The new motor is going to be 12.6:1 compression, with a cam dur @ .050 of 260* int /268* exh. 106 centerline installed @ + 4* and a lift of .620. I'm also considering up grading to 1 3/4 headers also. Give your opinions. Thanks
[addsig]

I would keep the heads you have now. I am sure everyone on there will say get diffrent heads.I am running iron roush 200 heads on my race 306 that runs 10.90's with the wrong stall .i just found out a few days ago.I also would step up to the 1-3/4" headers[img]/phpBB/images/smiles/icon_wink.gif[/img]. how fast are you trying to go?

_________________
79 pace car
80 cobra
84 mercury capri
97 merecury mountaineer 5.0


<font size=-1>[ This Message was edited by: tonys10sec306 on 2/7/05 2:45am ]</font>

<font size=-1>[ This Message was edited by: tonys10sec306 on 2/7/05 2:49am ]</font>

Ohhhh... I will be happy with a 10.70 or so. Thats pretty respectable for a N/A 306.
[addsig]

My car should run 10.70's with the right stall. Looking at your comb the car should run the number.what do the heads flow?

_________________
79 pace car
80 cobra
84 mercury capri
97 merecury mountaineer 5.0


<font size=-1>[ This Message was edited by: tonys10sec306 on 2/7/05 3:06am ]</font>

Don't F*ck around. I assume you plan to spin it past 7k?

Glidden Victor Jr heads will kick ass.

http://edelbrock.com/automotive/raceheadford.html

_________________
Jim Langley

Technical Editor

Fordmuscle.com

'65 Mustang GT, 289 (Warp 65)

'86 SVO (not yet christened)

'92 Mustang, 5.0 (Green Machine II) sold. sigh.

<font size=-1>[ This Message was edited by: FasterDamnit! on 2/7/05 3:48am ]</font>

I'd use the head you have.[img]/phpBB/images/smiles/icon_cool.gif[/img]
[addsig]

<TABLE BORDER=0 ALIGN=CENTER WIDTH=85%><TR><TD><font size=-1>Quote:</font><HR></TD></TR><TR><TD><FONT SIZE=-1><BLOCKQUOTE>
On 2005-02-06 15:05, tonys10sec306 wrote:
My car should run 10.70's with the right stall. Looking at your comb the car should run the number.what do the heads flow?
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They flow 277 cfm @ .600 on intake and 191 cfm @ .600 exhaust
[addsig]

<TABLE BORDER=0 ALIGN=CENTER WIDTH=85%><TR><TD><font size=-1>Quote:</font><HR></TD></TR><TR><TD><FONT SIZE=-1><BLOCKQUOTE>
On 2005-02-06 15:45, FasterDamnit! wrote:
Don't F*ck around. I assume you plan to spin it past 7k?

Glidden Victor Jr heads will kick ass.

http://edelbrock.com/automotive/raceheadford.html
</BLOCKQUOTE></FONT></TD></TR><TR><TD><HR></TD></TR></TABLE>
We have some victor Jrs on a 393 and I'm not impressed with them. TFS track heats preformed better.
[addsig]

Don't go TOO big on a 306.

Call AFR. I believe they offer another 'competition' level of porting. Last I read, you could send your existing heads back to them for the upgrade.

Might be something to look into... but I don't think you want to go much, if any larger.

http://www.airflowresearch.com

Good Luck!
[addsig]

<TABLE BORDER=0 ALIGN=CENTER WIDTH=85%><TR><TD><font size=-1>Quote:</font><HR></TD></TR><TR><TD><FONT SIZE=-1><BLOCKQUOTE>
On 2005-02-06 17:04, econodrag wrote:
<TABLE BORDER=0 ALIGN=CENTER WIDTH=85%><TR><TD><font size=-1>Quote:</font><HR></TD></TR><TR><TD><FONT SIZE=-1><BLOCKQUOTE>
On 2005-02-06 15:45, FasterDamnit! wrote:
Don't F*ck around. I assume you plan to spin it past 7k?

Glidden Victor Jr heads will kick ass.

http://edelbrock.com/automotive/raceheadford.html
</BLOCKQUOTE></FONT></TD></TR><TR><TD><HR></TD></TR></TABLE>
We have some victor Jrs on a 393 and I'm not impressed with them. TFS track heats preformed better.

</BLOCKQUOTE></FONT></TD></TR><TR><TD><HR></TD></TR></TABLE>

I didn''t say tobuy Vic Jr's. I said buy the Glidden Vic Jr.'s. Revised valve angles and CNC porting to Billy's specs.