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The Amazing 351C 4V
jorgem2;29668 Wrote:That is a great write up on this motor. I followed a lot of his advice while rebuilding my motor, mostly factory parts .600 lift cam and 7200 rpm were the goal. I shift at 7000 rpms all the time and so far so good. Might try a little more revs this fall


Hey, still interested in the NOS Super Comp headers I have? I'm ready to sell. 7200 shift points!...I think you qualify as using them to potential. Smile Shoot me a PM.

[Image: 386_07_10_13_5_58_42.jpeg]
My Mustangs:
71 M-code Mach 1, Medium Blue/White Sport, 4R70W, 3L50, Factory Ram Air.
72 Q-code Mach 1, Pewter/Black Sport, 4-spd, 3L25.
65 Convertible, Britney Blue/White/White, more modified than original.
05 Convertible, Legend Lime/Tan/Tan, future classic??
The 351C 4V, whether open or quench chamber headed LOVE the high RPMs, when properly modified. When I was running one, I routinely turned mine to 7500 as I had to in order to get the best out of the motor.

Mind you, this was with open chambered heads that had been modified for solid lifters and 12:1 popup pistons. I did all the oiling modifications and Yes, I was able to run with the Big blocks, except for the modified hemis. The only real problem was having to turn those high RPMs. Trust me, that can get scary sometimes.

That is why I went to the big blocks. They were (and remain in my opinion) cheaper to build and you don't have to turn those high RPMs to get the job done, especially on the street where TORQUE is king!

Believe me, i am not knocking the 351C. I have a couple of them in my garage, both open and quench chamber headed but I am now a confirmed BBF manSmile! I will keep the 351C in the event I decide to go back to stock someday.


Do the RIGHT thing.
cobra3073;29868 Wrote:Believe me, i am not knocking the 351C. I have a couple of them in my garage, both open and quench chamber headed but I am now a confirmed BBF manSmile! I will keep the 351C in the event I decide to go back to stock someday.


"There is no replacement for displacement". Wink

73 Convertible - 351C/4V CC heads/4bolt/forged flat tops/comp 270/rhodes/mallory unilite/tri-power/hookers/glasspacks/c6/3.50 limited slip/Gear Vendors/Global West sub frames, strut rods and shelby style traction bars/ Rear sway bar/tilt steering (not original)

Pics of modifications included in:
will e;29873 Wrote:"There is no replacement for displacement". Wink

Sure there is, it's called forced induction.

I don't mean to start anything.

[Image: 36319488731_8f2a376549_z.jpg]
73 Mach 1 Mustang
89 Dodge Shadow ES
94 Jeep Wrangler

My 70 351C 4V loved 7000 RPM. Their was a few 8000 RPM doughnuts. Big Grin
I've always been a big block fan, but after that I really want to build a cleveland! I've been around 289s n 302s and they were great motors but just (in stock form) didn't have the power n torque for the bigger mustangs.
I've never had a chance to drive a cleveland, my mach came with one but at some point in time it was traded for a 302. Then I built a 532 for it.
Great article and post, anyone got a 4v cleveland for sale? Smile

72 Mach-1 12:1 532 Forged internal Scat stroker, Kaase P51 heads, Comp roller cam, March serpentine conversion, C6 manual VB, 9'' 4:33:1.
66 convertible 289, 82k miles.
Very interesting read.
I wondered about an 8k tach without a redline.
I've run mine up to about 5k, but was worried to get it any higher than that.
I guess 3500 rpm cruising on the freeway isn't even close to the limit.

I have to agree, I have a pretty amazing motor indeed!
Gearge is a great guy and is a very good writter and very detailed in his analysis of the Cleveland.I will be using his advice for my build this winter (I hope) of a new and improved Cleveland.
The Clevelands have no problem with RPM. They love it! Gearge said,Ford engineers took a "race motor" and de-tuned it for the street.
Like Cobra3073 said, I too had the open chamber built motor ,with the shift points at 7500,using preped stock rods,and crank. No issues.That was the most fun engine I ever had !
By the way Gearge is on facebook also.He is always open to questions and helping others. He does not beleive in strocked Clevelands though.He likes them the way they were designed.

[Image: 16kuyc0.jpg]
Back when I bought my 73 2V, I set out to make it a respectable 1/4 mile pro street contender.
All of my freinds dogged me about the cost vs chevy everthing fits and is cheap. brings back great memories of my #1 Chevy 69 Camero nemisis who tried, tried something else, and tried some more. NEVER BEAT MY FIRST BUILD.
This article is awesome and tells me I've always made the right choice. Wait to you see what I'm building now.

[Image: 2rr7aiv.png]

Just cruising along minding our own business when BAM!!! The LAWS show up.
Back in 1972 when I was working at the Ford Dealer, one of the mechanics bought a new Gran Torino Sport with a 351 C, I will never forget my 1st ride in that car...I thought it had a 429 in it....I made him show me the engine ..that thing was very fast !
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