4 Camshafts total. 2 above each cylinder bank. So... 2 per head.
DOHC means double overhead cams,which means two camshafts on top of one cylinder bank. 4.6l is the engine displacement.
DOHC. Obviously a v-6 or v-8. DOHC- Double OverHead Camshafts. 2 camshafts per cylinder head.
A single overhead camshaft V-8 has 2 camshafts, one on each head.
DOHC
Dohc means that the engine has 4 valves per cylinder or 2 camshafts per head :)
DOHC means Double Over-Head Cam. The engine has 2 camshafts that are located within the cylinder head at the top of the engine.
DOHC stands for Dual Over Head Cam : That means that each cylinder head has 2 camshafts on the top of the engine cylinder head ( in the case of the Ford Escort ZX2 , there is one cylinder head on the four cylinder engine so it has 2 camshafts on top of the cylinder head )
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
The only difference is the dohc engine has 2 camshafts, an intake and an exhaust camshaft. A standard 2.0 has only 1 camshaft. Many dohc engines also have 4 valves per cylinder whereas a 2.0 sohc generally has 2 valves per cylinder.
The camshafts are at the top of the head(s). Pull the valve cover(s) and you should see the camshaft(s). Some of the 4 cylinder Saturns had only one camshaft. The DOHC Saturn (sl2) and the LS2 had had 2 camshafts in the heads, meaning that the V6 LS2 had a total of 4 camshafts.
The 2012 Aston-Martin V8-Vantage has double overhead cam (DOHC).
The 2014 Aston-Martin V8-Vantage has double overhead cam (DOHC).