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Old 12-21-2009, 12:56 PM   #1
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Question Difference between SOHC & OHV

I have read some stuff online but I trust you guys more than them. What is the difference between them? I don't know much but they seem to be the same = OHV has a over head camshaft right?
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Old 12-21-2009, 01:24 PM   #2
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Re: Difference between SOHC & OHV

OHV= over head valve.
SOHC= single over head camshaft.

OHV is when the camshaft is in the center of the engine and has push rods to open the valves.

A SOHC the camshaft is on top of the head and directly on top of the valves which don't require push rods or rocker arms. This is also called modular motor or mod motor.
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Old 12-21-2009, 02:24 PM   #3
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Re: Difference between SOHC & OHV

SOHC (single over head cam) you can see each head has a cam above it and a chain running around a sprocket that turns the cam.



DOHC is the same thing but there are two cams the chain goes around (thus two sprockets on the top of the head)

OHV is overhead valve, has one cam in the middle, this is known as a pushrod motor

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Old 12-21-2009, 03:11 PM   #4
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Re: Difference between SOHC & OHV

Alright, Thanks thats what I was thinking but didn't know how the single cam would control both valves on each side on the V engine. Now I understand what pushrods are thanks guys.
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Old 12-21-2009, 03:59 PM   #5
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Re: Difference between SOHC & OHV

yea, one push rod for the intake and one for the exhaust valve, two valves per cylinder~
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Old 12-23-2009, 07:57 AM   #6
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Re: Difference between SOHC & OHV

now that was alot better than the magazines huh lol, these guys are pretty good man
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Old 12-23-2009, 01:50 PM   #7
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Re: Difference between SOHC & OHV

Ya they tell you exactly what you want to hear. Straight to the point.
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Old 12-24-2009, 02:41 AM   #8
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Re: Difference between SOHC & OHV

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Originally Posted by jwalthersoccer View Post
Ya they tell you exactly what you want to hear. Straight to the point.
hey man just read your sig bro....if you do it right you can have our "brethren" trying to keep up with your glory, i eat v8s all day in my v6, theres 10 sec v6 mustangs and some builds that have pushed 1000 HP, i use to look at my v6 through the eyes of wanting a v8 but dealing with it, now ive learned that a v6 is just a different breed and to each its on, theres mods for ours just like theres mods for v8s, dont try to be a v8 just realize ur v6 can go just as fast but you save on gas lol, look spend about a grand and youll be walking GT all day, diablo or sct tuner and 3.73 gears with posi and your already there, then turbo or supercharger kit if you wanna start really WOWING them! only thing you cant touch is the sound but hey it could also make us more unique! just a little pep talk pimpin
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Old 12-24-2009, 04:41 AM   #9
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Re: Difference between SOHC & OHV

Here's a video of a OHV motor (a.k.a Pushrod, a.k.a. I-Head, and also generally known as Cam-in-block)


Here's a video of a SOHC (w/Supercharger) motor (a.k.a. OHC, also called by Ford as a Modular motor (V8 and V10 OHC))


And here's a 4 Cylinder DOHC motor


Some more animations and info:
HowStuffWorks "Camshaft Configurations"
OHV, OHC, SOHC and DOHC (twin cam) engine - Automotive illustrated glossary

For further reading (if you'd like) via Wikipedia
Overhead valve - Wikipedia, the free encyclopedia
Overhead camshaft - Wikipedia, the free encyclopedia
Overhead camshaft - Wikipedia, the free encyclopedia (same page as the OHC, just a bit down the page).
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Old 12-24-2009, 01:26 PM   #10
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Re: Difference between SOHC & OHV

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Originally Posted by Zebs5408 View Post
just a little pep talk pimpin
Ya i understand we can make our sixers run but it takes a little money until beat a V8 on the street I will still envy them. Even then I will still respect the V8 power. Thanks for the pep talk tho
And OsirisGuy thanks for showing me videos every1 on ME always help alot.
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Old 12-25-2009, 06:01 PM   #11
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Re: Difference between SOHC & OHV

ok but think bout this, Zebs5408 says "spend a grand and you will be walking on them" the majority of V8 Stangs that wanna run arent stock anyways, i have spents about $1,200 on performance parts and i have 308rwhp, try doing that with a V6. so jwaltersoccer no disrespect but all you really can do is try to live up to our V8 brotherens glory.
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Old 12-25-2009, 10:10 PM   #12
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Re: Difference between SOHC & OHV

Hey didnt need to get in a fight here, we are all mustang so lets show some respect for each other. V8 are sweet but V6 can run too.
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Old 12-26-2009, 05:36 PM   #13
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Re: Difference between SOHC & OHV

Not fighting, i jus feel bad when people tell others with V6 they are good to mod out, their not, not for the price ya have to pay to put out decent numbers. I'm jus helpin out because before my v8 i fell for the whole mod out v6 thing and i reget even trying to make it quick.
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Old 12-26-2009, 09:50 PM   #14
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Re: Difference between SOHC & OHV

It's true to a point. Spending $5000 to make a v6 as fast as a bone stock 99-04 GT seems pointless, but some want to do it. You can certainly make a v6 fast...it'll be fast for a v6, that's about it. Yes it will take some older v8's and numerous other v6's and 4 bangers, but don't expect it to be faster than every other car out there...there's always a faster car.

Someone could take that same $5000 and put it int a GT and compete with cobras, and the v6 couldn't even touch it.
V6's are great cars and can be fun to drive and mod, but they are in their own league. You can't slap a couple of mods on and expect to beat out v8's...you'll be disappointed.
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Old 12-26-2009, 10:19 PM   #15
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Re: Difference between SOHC & OHV

I have to agree after owning a few 5.0 & 4.6 gts its going to take alot more than a few bolt ons to out run a gt. I had several split port cars try my stock 2.73 gear 96 gt & they could only run close thru first gear. The v6's are fun to work on but the gt's are cheaper & bolt on friendly.
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Old 12-27-2009, 12:46 AM   #16
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Re: Difference between SOHC & OHV

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Originally Posted by sonicpony03 View Post
It's true to a point. Spending $5000 to make a v6 as fast as a bone stock 99-04 GT seems pointless, but some want to do it. You can certainly make a v6 fast...it'll be fast for a v6, that's about it. Yes it will take some older v8's and numerous other v6's and 4 bangers, but don't expect it to be faster than every other car out there...there's always a faster car.

Someone could take that same $5000 and put it int a GT and compete with cobras, and the v6 couldn't even touch it.
V6's are great cars and can be fun to drive and mod, but they are in their own league. You can't slap a couple of mods on and expect to beat out v8's...you'll be disappointed.
If you spend 5k to beat a GT something is wrong with the way you mod cars. 5k is enough to dig in a cobras behind.
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Old 12-27-2009, 02:06 AM   #17
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Re: Difference between SOHC & OHV

i mean some people go with sixers because insurance on gt's & cobras, or just personal preference. no big deal either way. doyour thing
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Old 12-27-2009, 09:19 PM   #18
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Re: Difference between SOHC & OHV

Ya know one is tryin to start a fight. I have a v6 cuz i couldnt afford a v8. I would much rather of had a gt but for now I happy with my little old sixer. Just learning a thing or two on my six before I go to the big leagues: V8.
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Old 12-30-2009, 12:02 AM   #19
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Re: Difference between SOHC & OHV

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Originally Posted by jwalthersoccer View Post
Ya know one is tryin to start a fight. I have a v6 cuz i couldnt afford a v8. I would much rather of had a gt but for now I happy with my little old sixer. Just learning a thing or two on my six before I go to the big leagues: V8.
Not trying to start a fight either, but fords 2v v8 isn't uhh "big leagues" at all lol
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Old 12-30-2009, 03:54 PM   #20
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Re: Difference between SOHC & OHV

When I say gt I mean 99-04.
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Old 12-30-2009, 03:55 PM   #21
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Re: Difference between SOHC & OHV

BTW wat kinds of number u puttin down?
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