2 Camshafts total in a single overhead camshaft V8.
-V8 engines have 2 Cylinder heads.
-1 single cam per head.
The only exception would be an extremely narrow angle V8 utilizing a single cylinder head, which I am unsure have ever been produced.
(Volkswagen produces narrow angle V6's, ( 15' ) which incorporate a single cylinder head.)
-Matt McClosky
A single overhead camshaft V-8 has 2 camshafts, one on each head.
A single overhead camshaft engine can have either one or two cylinder heads. The "single" indicates the number of camshafts per head, not the total number of camshafts.
Single overhead camshaft
Do you mean Dual Overhead Cam and Overhead Valve. Overhead Valve has the camshaft positioned just above the Crankshaft in the block of the engine and uses Pushrods to actuate the valves. Overhead Cam(Single Camshaft) and Dual Overhead Cam(Twin Camshafts) have the Camshaft positioned in the head directly over the valves. As a rule of thumb OHV(Over Head Valve) engines have smaller and shorter heads while SOHC(Single Over Head Camshaft) and especially DOHC(Dual Over Head Camshaft) engines have much wider and taller heads to fit the camshafts and their accessories. Sometimes you can tell by spark plug positioning but this is not always accurate. Most OHV have the spark plugs on the sides of the heads with the distinct exception of HEMI heads. DOHC usually have the plugs in a North-South(Up-Down) arrangement.
The Saturn 4 cylinder engines were available in 2 styles, the single overhead cam and the dual overhead cam. In both engine types, the camshafts were always in the head, just under the top cover of the engine. If you remove the top cover (where you install the sparkplugs) you will see the camshaft(s).
A twin cam is an engine that has two cam shafts (which open and close the valves). The most common reasons for two camshafts are: If a V-shaped engine design uses one cam shaft for each side of the V - obviously, if a V engine has overhead cams, you would need a cam at the top of each side of the V. Also, a straight in-line engine with two intake valves and two exhaust valves per cylinder might use twin camshafts. Actually, I V-6 or V-8 engine with one camshaft on each head in a overhead cam configuration is still considered a single overhead cam. The only time an engine is classified as a twin cam or double overhead cam is when there are two camshafts on each cylinder head. A double overhead cam V-6 engine would have a total of four camshafts. Two for each head.
Single Overhead Camshaft
ok. the different camshafts are, single pushrod cam, twin cam, single overhead cam (SOHC) and dual overhead cam (DOHC).Single pushrod cam will be located at one side of your engine at your head. Twin cam is similar but you will see 2 cogs side by side. SOHC will hace a cog above your head as it is in with your rockers or operating directly on top of your valves. V6 SOHC have 2 cams, 1 over each head. DOHC are in the same place as SOHC although you will see 2 cogs above each head. V6 will have 4 camshafts, 2 on the laft bank and 2 on the right bank.Go to www.howstuffworks.com and search 'camshaft configurations
It is an engine that has it's one and only cam shaft in the head above the valves. Instead of having it below in the block. A double overhead cam has two cams in each head.
The 4.6 liter V8 engine used in a Ford Mustang GT is a Single Over Head Cam engine * it has ( 1 ) camshaft on the top of each cylinder head , so there are ( 2 camshafts )
If you have an Escort that is not a GT you have a 1.9 liter single overhead camshaft with 2 valves per cylinder which is fuel injected.
how can i tell sohc or dohc