Ok, you got me, I rounded it, with a tire height of 25.8, ratio of 3:00, its running at approx 75 mph, at 70 it is at 2800 rpm. your truck probably has a little taller tire on it. im running a 275/50/15 which is only 25.5-26" tall, which is stock height for my car. do you have an overdrive? I have done a revolution test on my car and definitely has a 3.00.

 

i run a 70 4bbl clevand in a 71f100 with a c6 and 3:55 rears got around 12.5 if i drove it rite but that wasnt very often like every one else said they dont have much bottom end power but ya get'er over 5500 she moved out quite well the only problem i had was with the unleaded gas of today and the regular feul heads of the past keepin exaust seats in it was a majer ishue(sp) i had go and get hardend seats installed.i think if ya got it and set it up rite it would be alrite just mention clevland to some punk with a ricer and he'll probly back down

 

Yes Sir, My P235s are a little taller than yours. Tis still dark out, but I think they are in the 28" range.

Either way, roll your tire one complete revelotion, and count the driveshaft revs. That will give you your rear ratio, reguardless of the gear set.

John

 

Monsterbaby,

We squeeze 427 CID out of truck 351W Windsors using a -.1250" undercut 400 crank, 300 I-6 con rods, custom aftermarket pistons & 2V "C" heads because they've much more "off idle response, low end torque & stronger midrange than 4V "C" heads do. It is a freaquey set up the average motor enthusiast has no clue, stupidly thinking it's SB with SB Displacement (NOT) well maybe technically it's a SB Block, but it has BB Spec's. We 4 bolt those main caps. but it's a cheater engine.

Anyone who has a notion of which end is up can build a great cheater engine or Hi Per race engine, but that's far far away from most guys abilities. Most guys are looking for a low dollar bolt in that gets fair to middlin MPG and can "beat" something every so often regardles of what it is. In all fairness I do know a guy who is ate up over "C"s. He has one in a Bricklin, and another 4V in his 70 Torino Ranchero, Squire. He doesn't have any problems with his engines, but then again he never hammers them at all. He drives like a gentleman everywhere and all the time. . . .

SO I will admit there are some fierce and famous "C"s around but you have to agree they're the exception and not the rule, Don't belong to the average guy, Are well cared for(when they're run hard they're not put up wet etc), some others lead very sheltered lives even, would you not agree with that?

This guy wants a 351 "C" then to use an AOD. . . . what's his game Muroc or a spot in SCTA records? Nah, he figures to reduce operating RPM to & fro work or some other commute, Not what a 351 C Is All About. Not only will is get poor MPG and run poorly, it most likely will lug itself into oblivion in short time. . . .

I'm not dis'ing "C" Engines I'm just saying it's a wrong engine to commute to work or school in, and still expecting anything out of,... set up with an AOD.

Just my $.02 worth on the subject, doncha see.

FBp

 

I will agree with fordboypete in the fact that it will not be a good engine for mileage and commuting or a superfast racer (Unless the $$$ is spent to get it there. My rebuild was a mild budget build with all the specs listed earlier and a mild cam. I drive it as a commuter on nice days but I also floor it everywhere and will race anything that wants to. my build was for a purely fun driver. has a good amount of power but sucks on mileage and if I could do it again I would have went way more radical with it since I cant afford the gas anyway. lol.

 

Not a good engine for commuting? It was a stock engine in Torinos and Mustangs and .... People commuted in them all the time without any problems. When I was a kid, we drove cars with these engines in them because they were in our mothers and fathers cars.

 

GREAT engine, just not so great or practical for city driving with a aod. the engines are made to rev and be run not putter along through traffic lights. commuting on highway awesome, commuting through lights stop,go etc. not so awesome.

 

They came in 4-door family cars.

 

Man them families must'v been hot rod people huh, LOL. no doubt great engine. if ya like it build it. like I said I love mine, I drive it slow, fast and everywhere. I even take my family in it sometimes. drove off from my wedding with it and brought my first born home with it. never have doubted its reliability.

 

FordBoyPete: If you are using 351C heads on a windsor,are you using a rare intake or spacer plates? and where can I get some. I remember years ago somebody made an intake for this combination, they called it a Clevor. Is some one doing this again. I am building a 66 F100 for my wife and have been looking for something different to use for a powerplant. So far it will be a 2.3 turbo intercooled/T5, but I think a Windsor w/Cleveland heads might be even better. Mileage is not that important.

 

there are a lot of aftermarket heads now that are based on the cleveland design that use standard Windsor manifold ie trickflow twisted wedge heads fro one example. But you are right it was called a clevor, and the company that made the manifold for it went out of business several years ago, you can still find the manifolds once in awhile on evilbay but they always go well over 400, I believe that Terry Parker is making one of his funnelweb intakes for this conversion on the 351w using cleveland heads though, and possibly CHI was talking about it using thier heads.

 

There ya go! Buddy Terry has twisted wedge heads on a W block I'm not sure about which manifold he decided on, but he was looking at a lightening lower & going with a Diablo PROM running MAFS Logic instead of S/D. . . Last I knew I think he had a torker for a 351W with a 780 CFM Edelbrock or something like that. He's a 427 CID Windsor & has it in an 87 T-Bird. It's nasty.
As for Clevelands commuting in traffic, where are those engines now?
Why did Henry go to M's?
Why did/do they make exhaust baffles for "C" heads?

Runnin' a "Boulevard" isn't downtown commuting to me. Block to block X lite to lite is one of the fastest ways to wipe out a "C" engine. They are designed to twist up & turn RPM's, unlike most other FoMoCo engines running in OEM trim. It's what the Boss was all about.

Bottom line, other engines of the era continue existing nearly into 21st century in OEM productio, at least. . . . Not so Clevelands nor M's, ever wonder why?

FBp

 

ok I have to disagree finally going to get into this on the Cs not bieng a good engine for a family car, I had a 74 montego with a 351c 2v and I routinely got 15-17mpg with it in mixed driving (in town, and some freeway commuting to work) and when I moved to Wyo from WA I drove that car, and the worst fuel economy on a tank I got was 17, and got 21mpg on a couple of tanks so don't try, and say the cleve can not get good fuel economy, and in australia the built the cleveland upto 1984, and never had the windsor class of small block at all, and those were all most all used as daily commutor, and family engines. And my Cleveland had 163,000 miles on it when the origanal nylon timing gear let go, and still didn't burn any oil. You are confusing the 351c 4v version as meaning ALL 351c engines and that was an entirely different deal all together, and the one I just told you about was not the only one I ever had that ended up getting over 15mpg in a 5000lb car, and lasted well over 100k miles.

 

No, because that means nothing. What about Y blocks? Or Flatheads? Have'nt seen the 289 in awhile too. The Windsor lived because it was a better overall engine to be driven or used by anyone. It doesnt mean Clevelands are bad engines. Its all about progression. Even a 4V big port Cleveland will be fine in traffic. Its not gonna blow up or melt down just because its not running at redline. Sure its happier there, but how many were driven by someones Grandma to chuch or otherwise driven very lightly for years with no trouble? I can think of a few. The Boss 302 is another story, but then again it had 50 fewer cubic inches to deal with the huge ports. Do the math.

A Cleveland can be built into a very nasty engine, and is pretty potent in stock form too. In a weekend hot rod or truck, it would be great.

Fuel economy can be good, just keep your foot out of it all the time. But thats true with any engine.

 

I have a 72 351C (2V heads), AOD, and 3.50 gears in my 56 panel truck. It is like pushing a barn door in the wind but I still get 18mpg all day long. Now, if I had 4V heads, the AOD would not be a good option because it would keep the RPM's too low for the big valve heads.