07-24-2007, 12:39 PM
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#1
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GL Member
Join Date: Apr 2007
Location: Israel
Posts: 272
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A little question about the 3400 engine
I would just like to know how many valves exist in the 3400 engine?
Thanx.
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07-24-2007, 01:14 PM
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#2
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GLS member
Join Date: Jul 2004
Location: Where you should be
Posts: 5,577
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2 per cyclinder (overhead)
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07-24-2007, 01:19 PM
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#3
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GL Member
Join Date: Apr 2007
Location: Israel
Posts: 272
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overhead? what do u mean?
so the 3400 engine has 12V ?
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07-24-2007, 01:27 PM
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#4
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GLS member
Join Date: Jul 2004
Location: Where you should be
Posts: 5,577
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OHV Overhead Valve
According to GM...yes
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08-02-2007, 09:56 PM
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#5
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GLS member
Join Date: Nov 2003
Location: Eastern MA
Posts: 1,214
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Quote:
Originally Posted by AGT
OHV Overhead Valve
According to GM...yes
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yeah but who knows! we might have 44 valves!
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08-02-2007, 11:04 PM
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#6
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GLS member
Join Date: Mar 2007
Location: Tx
Posts: 1,295
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that sucks so just one for intake and just one for exhaust
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08-02-2007, 11:21 PM
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#7
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Yep. Intake valves are 1.76" in diameter and exhaust valves are 1.42".
Why does it suck?
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08-03-2007, 09:43 AM
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#8
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V.I.P. Member
Join Date: Dec 2003
Location: Wausau, Wisconsin
Posts: 918
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Quote:
Originally Posted by mfuller
Yep. Intake valves are 1.76" in diameter and exhaust valves are 1.42".
Why does it suck?
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I have a feeling most on here don't realize the Viper is an OHV engine (or it used to be). |
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08-03-2007, 11:19 AM
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#9
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GL Member
Join Date: Dec 2004
Location: Toledo, Ohio
Posts: 397
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virtually every engine designed since 1949 is over head valve...
Ever hear of the Rocket V-8 ???
the first overhead valve engine released in 1949
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08-03-2007, 12:36 PM
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#10
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Moderator
Join Date: Nov 2004
Location: Long Grove, IL
Posts: 5,002
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Quote:
Originally Posted by rowdygls
I have a feeling most on here don't realize the Viper is an OHV engine (or it used to be).
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The dodge V10 is still an OHV engine, but who'd want one of those anyways... 
The Z06 and ALL corvettes except for the ZR-1 for that matter are all OHV engines.
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08-03-2007, 03:48 PM
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#11
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GL Member
Join Date: Sep 2006
Location: Canada
Posts: 874
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Here is an example of an OHV engine:
Note the valve are OVER the piston.
Here is an example of a NON-OHV engine:
Note the valves are NOT over the piston.
Cleared things up?? |
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08-03-2007, 06:20 PM
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#12
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GLS member
Join Date: Mar 2007
Location: Tx
Posts: 1,295
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Hence the name "Dual Over Head Cam" DOHC, for us twin cam folk
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08-03-2007, 08:34 PM
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#13
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Boost Guru
Join Date: Mar 2004
Location: Buffalo, NY
Posts: 1,837
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Quote:
Originally Posted by DOHC_tuner
Hence the name "Dual Over Head Cam" DOHC, for us twin cam folk
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Sort of but not really. Not all OHV engines are DOHC. OHV engines have 1 cam in the engine block that pushes open the valves via pushrods. OHC (over head cam) engines have the cam(s) in the head pushing down on the valves directly, without pushrods.
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08-03-2007, 09:18 PM
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#14
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GL Member
Join Date: Sep 2006
Location: Canada
Posts: 874
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Overhead cams, and overhead valves are two different things. With overhead valves, the camshaft is lower in the engine and uses pushrods and rocker arms to activate the valves. With overhead cams, the camshat is above the valves, and activates teh valves directly.
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08-04-2007, 12:06 AM
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#15
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Aleromod part owner
Join Date: Nov 2003
Location: Far Northeast Philadelphia, PA
Posts: 18,199
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MFuller thanks for that info. I never knew the valve size, or thought to ask
I don't understand why 2 valves per cyl sucks. Mine does just fine with 2
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08-04-2007, 12:14 AM
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#16
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Its Beer Thirty
Join Date: Nov 2005
Location: Goodyear, AZ
Posts: 1,259
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Quote:
Originally Posted by Redog
MFuller thanks for that info. I never knew the valve size, or thought to ask
I don't understand why 2 valves per cyl sucks. Mine does just fine with 2
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Because the 4 bangers got 4 valves per cyl, doesn't mean it sucks though, just means we got 2 big valves and they got 4 small ones.
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Quote:
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