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Ford Truck Club Forum > FORD F-100 | F-150 SERIES > 1992-1996 Ford F150



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  #1  
Old October 20th, 2012, 10:45 PM
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RoadHawg RoadHawg is offline
 

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Default 351w vs 351c 4v/2v

Which engine would yall use? Planning on somwhat of a lightning clonee (yea i know they had the windsor). How hard would it be to swap a 351c in a 96 150? Carbed of course im also wanting to do C4 instead of that electronic trans. Think the 351c 4v's bottom end would be a problem even if i have 4.10s with 4500lbs? Im looking at every which way to dodge that computer.

Just a good ole boy with redneck tendencies.
  #2  
Old October 20th, 2012, 11:17 PM
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Okay here's the skinny.

351 Cleveland's were manufactured 1970-1974, 2v (on this engine means 2 Valve's per head) is the most common form and 4v(means 4 valves per head) is the rarest of the two, usually the 4v were put in the more hi-po cars and the heads are anywhere from $500-$1000 in good used condition(that's together) the 351m/400 use the same heads as the 2v 351c. They are cast iron and thick walled, have cast iron parts, where as the 351w uses an Aluminum intake(2v on this engine means 2 venturi, or the number of barrels in the carb) on the 2v version, iron on the 4v, aluminum timing cover, and weighs a bunch less then a cleveland.

Putting the cleveland in your truck is gonna be a bit of a challenge, it doesn't use the same engine mounts or perches as the Windsor series engine, the radiator is totally different(mounts different as well), you'd have to change out the whole wiring harness, gas lines and tanks, the speedometer is electronically signalled, so you'd have to figure that out.

I'm not saying it can't be done, I'm just saying it's gonna be a TON of work to do. Why not make a 351 Clevor? You'd have to machine the heads but it'd be worth it in the end, think Boss 302 only with a 351w.

You'd have more reliability believe it or not out of EFI.
  #3  
Old October 20th, 2012, 11:57 PM
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I believe the EFI is easier to tune, better mpg, and reliability. But if i do decide on the clevor the efi i dont believe anyone sells the lower intake to fit. They biggest reason id like to git away from efi is that the efi intake parts cost a hella lot more add the cost of a tuner to get everythang correct. Hell idk if my 6cyl efi is compatible with an v8. Im gonna go ahead and admit im ignorant with the efi scene.

Just a good ole boy with redneck tendencies.
  #4  
Old October 21st, 2012, 12:02 AM
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I am in no way trying to disrespect you in anyway, i know your knowledge is vastly superior than mine. But, i thought the 4v in the cleveland also ment 4 venturi (4 barrel) I aint never seen a 4 valve cleveland head.... But like i said im at the mercy of your experience.

Just a good ole boy with redneck tendencies.
  #5  
Old October 21st, 2012, 01:18 AM
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X2 on Road Hawg 4v/2v refered to the carb on the engine. The heads were different but both were 2 valves per cylinder. I don't know of any American V8 production engine in that era that had anything but 2 valves per cylinder.
Regards
rikard

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  #6  
Old October 21st, 2012, 07:20 AM
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Quote:
Originally Posted by rikard View Post
X2 on Road Hawg 4v/2v refered to the carb on the engine. The heads were different but both were 2 valves per cylinder. I don't know of any American V8 production engine in that era that had anything but 2 valves per cylinder.
Regards
rikard
bingo!

they recently did a episode on horsepower they rebuilt a 351c and a 351w stroker motor with Cleveland heads...

http://www.powerblocktv.com/player/s..._num=HP2012-10

Aaron

'95 F150 XLT, reg cab long bed, swapped 351w,
4.56 gears, 4-link SAS, 14" coil overs.

SAS Thread!!!

'04 F250 Lariat, crew cab short bed 4x4 6.0L PSD, 3.73 gears, straight piped,
sinister coolant filter, welded egr, CAT EC-1 coolant, blue spring.
60 gallon fuel tank/tool box, SCT X4 w/IDP custom tunes, SOON TO BE STUDDED!!



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  #7  
Old October 21st, 2012, 01:14 PM
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Excuse me, I got all confuzzled in my reply, I was sleepy. I went back and looked at everything.

The 2v and 4v mean Venturi as well. Where the difference between the 2v and 4v heads was the valve design, the 4v had Quench type valves and bigger ports whereas the 2v had smaller valves and ports. The 2v version as I stated was used on the 351m/400 so there is more heads out there, and can be picked up for $50 a piece if you look hard enough.

The 351 Clevor is basically the Cleveland heads on the Windsor engine, what has to be done is the heads have to be machined to change the water surfaces from block to intake, other then that they're bolt and go. And you're correct, not one EFI intake is made for a Clevor, Edelbrock AFAIK is the only maker of a 351 Clevor intake, and it's a 4v intake. I thought of making one but can't find any information on how exactly to change the water surfaces.

I know Holley makes a kit that bolts on 4v intakes and is EFI but we're talking $1k

What you'll get is the Horsepower and Torque potential of a 351 Cleveland, with the Ruggedness and Durability of the Windsor engine. It'd be a whole lot lighter than the 351 Cleveland you're thinking of putting in the truck, just requires a little bit more prep work, but it'll be worth it in the end.

Last edited by BigBlue79; October 21st, 2012 at 01:17 PM.
  #8  
Old October 25th, 2012, 08:58 AM
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I would go to horse pwr tv and look at the builds they done a couple of weeks ago over two shows concerning the rebuild of a cleveland and windsor. The Clevor was awsome and only the 4v heads out did the 2v at a certian range on the cleveland which if I remember correctly, the 2v heads were the way to go. Sadly they didn't do EFI and yes the efi carbs are expensive. We just don't have a lot of options on horsepwr in our 92-96 unless you just want to gut everthing and do your own thing.

1993 F150 XLT, 5.8 with E40D, Tow and Handling Package. Fully loaded from factory as truck was special order. Mods: Extang Snap on bed cover. 2" drop in rear, Six Liter Tuneup, NOS 66-72 Ford Air Foil Antenna, Planet Auto Red Ford Oval (grille). Diamond Clear Headlight Package, Bumper Guards, F350 Brake Conversion, Slotted/Drilled Front Rotors, 3 row alum radiator with Mk VIII elec fan. and much more to come!
  #9  
Old March 17th, 2013, 04:58 AM
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G'day all we are blesed down here in Australia Ford Australia produced a 302 Clevo motor with closed chamber heads smaller valves and when installed on a stock 351 cleve produced a comp ratio of 10.5 to one( great for lpg),and the smaller chambers and valves gave massive low down torque a cheap hot up for stock 351 engines
  #10  
Old March 17th, 2013, 10:04 AM
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never heard of that engine


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