351C. 2V heads? - Page 2 - Ford Muscle Forums : Ford Muscle Cars Tech Forum
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post #16 of 23 (permalink) Old 06-23-2009, 06:17 AM
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Re: 351C. 2V heads?

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Originally Posted by super-fairlane View Post
I really dont mean to be negative its just how I feel about some of these older cars with these old engines in them ,and I really appreciate all of the positive feedback and if I can ever help with info on some of the newer models mainly Windsors I will try my best to help.......
I don't get the feeling you are being negative at all.... it is YOUR project.
I admire you for choosing to use the "old" Cleveland, the reasons for your choice and am quite sure you will be happy with the outcome.
Good luck...

"Many claim experience and knowledge based upon how often they dispense advice" (Greg Banish)
Oh so true....
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post #17 of 23 (permalink) Old 06-23-2009, 10:47 AM Thread Starter
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Re: 351C. 2V heads?

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Originally Posted by cmf60 View Post
I don't get the feeling you are being negative at all.... it is YOUR project.
I admire you for choosing to use the "old" Cleveland, the reasons for your choice and am quite sure you will be happy with the outcome.
Good luck...

Thanks alot I realy appreciate that...

Im a real car nut ,I believe some cars are built to have an abusing kind of fun with ,and some that are original and older in good shape should be taken care of.

Dont get me rong I used to have a saying (drive it like you stole it!) but for me I guess that doesnt aply to everything.

PS. Thanks again for all the positive feedback and info...........

68 ford fairlane:
351C.

Last edited by super-fairlane; 06-23-2009 at 10:49 AM.
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post #18 of 23 (permalink) Old 06-23-2009, 12:51 PM
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Re: 351C. 2V heads?

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....these cleveland motors are going to get harder to find in the next 10 to 20 years so we should try to preserve them...
I bought a 351C 2v 2 years ago for 150 bucks, haven't gotten to it yet, but if I remember right it has just over 70,000 miles on it. I can turn the crankshaft pulley by hand too! Hopefully soon I will be able to dig into my first cleveland mill.

Jim "Iron Giant" Fahlin ~ A high performance car is like a guitar, you have to tune it to achieve your best operation and pull ahead of the competition.
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post #19 of 23 (permalink) Old 06-23-2009, 08:20 PM
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Re: 351C. 2V heads?

Do you need an iron 4V or aftermarket head to make 375HP? No, I never implied anything close to that. My advice was about time and money.

Iron 2Vs have a poor intake short turn radius that isn't easy for a first time porter to get right. Porting is very time consuming...not bad for a DIY project if you have the tools and determination but I wouldn't pay a professional to work on that type of head.

The open chambers are a problem for getting decent compression with a flat top piston. Figure about 9.25:1 tops for a zero decked, stock stroke engine.

Now figure out what you have to spend at a machine shop to get the heads reconditioned. Disassembly, cleaning, magnaflux, resurfacing, new guides, hardened seats, valve job, machining for screw in studs, etc?

I'm not saying it will need all these things...it's just good to be aware of expenses that may be needed to make an old head like new before comparing price to an aftermarket bare head.

I don't think I have to go into the obvious advantages of new technology.
Aus Ford Parts - Aussie 351 Cleveland Specialists

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http://autos.groups.yahoo.com/group/351ClevelandsRock302C351C351Boss351HO400/
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post #20 of 23 (permalink) Old 06-24-2009, 04:22 PM
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Re: 351C. 2V heads?

Brian, I know where your coming from.... I have sung the same tune in the past... for performance builds - the new generation heads have much more potential. Expect to cough-up $2.5k+ for heads, hardware and intake before you start though.

But, I get the feeling you are not taking in what he is saying here....

"Many claim experience and knowledge based upon how often they dispense advice" (Greg Banish)
Oh so true....
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post #21 of 23 (permalink) Old 06-24-2009, 05:16 PM
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Re: 351C. 2V heads?

Quote:
Originally Posted by BrianS View Post
Do you need an iron 4V or aftermarket head to make 375HP? No, I never implied anything close to that. My advice was about time and money.

Iron 2Vs have a poor intake short turn radius that isn't easy for a first time porter to get right. Porting is very time consuming...not bad for a DIY project if you have the tools and determination but I wouldn't pay a professional to work on that type of head.

The open chambers are a problem for getting decent compression with a flat top piston. Figure about 9.25:1 tops for a zero decked, stock stroke engine.

Now figure out what you have to spend at a machine shop to get the heads reconditioned. Disassembly, cleaning, magnaflux, resurfacing, new guides, hardened seats, valve job, machining for screw in studs, etc?

I'm not saying it will need all these things...it's just good to be aware of expenses that may be needed to make an old head like new before comparing price to an aftermarket bare head.

I don't think I have to go into the obvious advantages of new technology.
Aus Ford Parts - Aussie 351 Cleveland Specialists
First off 4V heads will kill those heads out of the box, only after you put in $$$$ are they good & you have to run their intake = more $$$
CHI & AFD always do dyno runs against iron heads using a smogged down stock non flowing intake. Put on a Holley or Blue thunder or something else then we will compare.
After market heads WILL make more power but only after you spend alot more money

1970/71 Ford Torino GT 500 408 Cleveland 4v C6 Auto 9 inch rear
If it doesn't scare the hell out of you its too slow
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post #22 of 23 (permalink) Old 10-29-2015, 06:07 AM
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Re: 351C. 2V heads?

i'm building a 70 351C with 2v heads.this section offers endless information and very helpful advice on this exact issue ,and others....Sticky #3: 351C Basics and Performance Tuning - Topic
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post #23 of 23 (permalink) Old 10-31-2015, 07:19 AM
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Re: 351C. 2V heads?

Doing the heads on a Cleveland gets expensive real quick, Labor is the killer, in a Cleveland head all the Valves have to be changed for the engine to make any kind of HP and not have a Valve drop!
The stock Cleveland valves are the Rotator type wit 3 grooves to hold the retainer! These do not hold the valve tight enough and have a habit of failing! A $200 set of heads will become a $1200 set of heads real fast with parts and labor! that is why After market heads are as popular as they are! To pay someone by the hour to port a set of Cleveland 2V heads is not practical dollar per HP!
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