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Author
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Topic: alum heads and headers
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stroker man
Gearhead Posts: 216
From: Denville NJ USA
Registered: Mar 2002
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posted 07-23-2004 12:45 PM
   
who has the best flowing alum heads that will fit my 69mach1 and will not have to get custom headers, roush 200 heads now flowing [email protected] lift, i have supercomps 1\3\4 tubes now that fit, 408w.
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Dave_C
Gearhead Posts: 968
From: Gadsden, Al
Registered: Aug 99
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posted 07-23-2004 02:28 PM
You'll see lot's of numbers thrown around out there. Every company wants to make their own heads look best for obvious reasons. About the highest out of the box claim is for AFR 225 heads. Something like 325 cfm claimed for their CNC heads. Buddy of mine has some new ones. Look great, but not installed yet. About $2100 complete.There are other race type heads like the Twisted Wedge R heads, but they require new pistons and custom headers. Is the car street/strip or mostly strip, cam type and size, transmission/converter and gearing all play a part in what you need. Absolute flow is not everything. With your 1 3/4 headers you can only use so much flow anyways. IMHO, I would take a look at what you have. The Roush heads have excellent potential. I wouldlook at having a well known reputable head porter work and flow them. Those heads can be brought to over 300 fm without difficulty and can go 325+ with an expert working them. It would be less cash than buying out of the box aluminum heads and your headers would still work. David Cole ------------------
557 BBF Powered, alcohol injected rear engine dragster. 4.90 @ 143 1/8 mile. 1.09 60'. I've got to be crazy to drive this thing.
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stroker man
Gearhead Posts: 216
From: Denville NJ USA
Registered: Mar 2002
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posted 07-23-2004 02:51 PM
thanks dave yea my heads were ported by a guy who has done a lot of heads over the yrs he showed me my new roush heads ported to my old world sr heads and man they looked nice, i was just wondering about alum heads saving some weight off the front end, my 408w should do good with the parts i have in it now if not i will start over again, it should make 475 or more hp at the flywheel with tuning i hope, time will tell, Dave still have that 69 race car?.
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thumpin cat
Gearhead Posts: 458
From: Santa Barbara, California
Registered: Mar 2002
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posted 07-23-2004 03:07 PM
Those Jegs/Kaase heads also have some great potential. The AFR 225s flow more than the Jegs/Kaase but the Jegs/Kaase heads have bigger valves.
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Dave_C
Gearhead Posts: 968
From: Gadsden, Al
Registered: Aug 99
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posted 07-23-2004 03:52 PM
quote:
Originally posted by stroker man:
i was just wondering about alum heads saving some weight off the front end,......, Dave still have that 69 race car?.
The aluminum heads would save you about 50-60 lbs off the front end. If you really want aluminum look around for a set of Edlebrock Victor Jr heads. They flow around the 300 cfm mark with just a valve job and sanding roll work. I've seen several sets of these for sale. People want to move up to the newest wiz-bang heads from AFR, etc. The Jr's are an excellent head and everything you have will bolt right on. I saw a set a few weeks back online for $700. They can be had new for $1300 My buddy I mentioned above bought those AFR 225's to replace a set of Vic Jr.'s. We'll see a direct comparison when he installs them. No...I sold the 69. Sorta wish I hadn't, but I got the speed bug really bad. Wanted to go fast and couldn't afford it in the 69. So, I sold it and bought my rear engine dragster. Light weight, big Ford engine, easy to work on and almost zero maintainence needed for a 7 sec ride. Biggest thing is that the dragster is a total blast to drive. Like being shot out of a cannon. Later,
David Cole
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557 BBF Powered, alcohol injected rear engine dragster. 4.90 @ 143 1/8 mile. 1.09 60'. I've got to be crazy to drive this thing.
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stroker man
Gearhead Posts: 216
From: Denville NJ USA
Registered: Mar 2002
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posted 07-23-2004 04:22 PM
Dave i like to look at those vic jr heads seems like they got lost in the crowd, AFR seems to be on everybodys mind thses days, if they have stock ex port location ill go with them just clean them up and install nice just what i need no headaches, that new ride must be a thrill to drive, like that mustang though. thanks for the infro.
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CHIPSBAD67
Gearhead Posts: 396
From: LOU,KY;USA
Registered: Sep 2003
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posted 07-23-2004 06:56 PM
i like the afr's. heck i got the wieniest ones and im impressed. i like what ive seen of the vic. jr's too, but not anything else from edebrock. are far as buying heads with "potential", i dont bite. simply because that means i have the potential to screw them up. no thanks. out of the box, bolt it on, say goodnight.------------------
306, 4speed, 4.11's....best 1/8 mile 7.58 at 92mph with 1.72 60ft. PUMP GAS/NO ADDERS/STREET TIRES
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Strain Gang
Gearhead Posts: 212
From: Thor, Iowa
Registered: Mar 2003
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posted 07-23-2004 07:04 PM
Dont forget about FRPP's new Z304 head. They are great right out of the box. Comparable to the AFR 205. Numbers to me mean squat. The real key is not necessarily the quanity of air but the quality of the air/fuel mixture. We ran real good on a set of worn out iron heads. VERY small valves and ports, but thats what we could afford. Now we got a set of Fords Z heads and I am very impresed. Steve.
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stroker man
Gearhead Posts: 216
From: Denville NJ USA
Registered: Mar 2002
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posted 07-23-2004 09:25 PM
strain gang are those Z304 heads from ford have stock ex ports? if so i might look at them also, to many heads these days, stuff to make up your mind but i need stock ports on the ex without spending a millon on headers, my roush heads should be good on the stroker for now im sure they will not dissapoint, [email protected],180.ex, [email protected], 186 .ex, and 270 @ .700 lift 192 .ex, but ill never see that with this motor.
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Strain Gang
Gearhead Posts: 212
From: Thor, Iowa
Registered: Mar 2003
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posted 07-23-2004 11:56 PM
They have a dual pattern exhaust bolt pattern. The ports are obviously larger, but our 1 5/8 headers would have fit fine. We had to have a set of pipes custom made for our chassis and went with the 1 3/4 with adapter plates. But you will be fine with them. If you are seriously interested, I will give you the name of the company we got ours from. He sponsored us some of the total cost and also sold our iron heads for us. He is a very cool guy and very knowledgeable. HTH, Steve.
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n2oMike
Gearhead Posts: 2419
From: Spencer, WV
Registered: Jan 2001
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posted 07-24-2004 05:22 PM
As far as AFR's are concerned, the 205's have a fairly stock exhaust port height. The 225's exhaust port is raised 3/8" and can cause problems.Good Luck! ------------------
Mike Burch
66 mustang real street
302 4-speed 289 heads
10.63 @ 129.3
http://www.geocities.com/carbedstangs/cmml_mburch.html
http://www.fortunecity.com/silverstone/healey/367
http://www.mustangworks.com/cgi-bin/moi-display.cgi?220
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stroker man
Gearhead Posts: 216
From: Denville NJ USA
Registered: Mar 2002
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posted 07-24-2004 09:15 PM
thanks mike so the AFR205 are close to stock on the ex that would be good, maybe ill get moving on the new heads once i get this thing up and running, thanks guys.
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