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'''Overhead camshaft''' (OHC) valvetrain configurations place the [[camshaft]] within the [[cylinder head]]s, above the combustion chambers, and drive t There are two overhead camshaft layouts:

...Schnitt.jpg|thumb|right|250px|A [[cylinder head]] sliced in half shows two overhead camshafts—one above each of the two [[poppet valve|valves]].]] [[double overhead cam]]

...ar is on the [[crankshaft]], the larger gear is on the camshaft. Since the camshaft gear has twice as many teeth as the crankshaft gear, it runs at half the cr The '''camshaft''' is an apparatus used in [[piston engine]]s to operate [[poppet valve]]s.

'''Overhead camshaft''' (OHC) valvetrain configurations place the [[camshaft]] within the [[cylinder head]]s, above the combustion chambers, and drive t There are two overhead camshaft layouts:

...[[cylinder]] [[engines]] from 175 to 500 cc and [[valves]] with overhead [[camshaft]], some with a rear [[suspension]] [[torsion bar]]. ...built [[mopeds]] and [[motorcycles]], including a 175 cc with an overhead camshaft and a two-stroke 160 cc and 250 cc engine with a valve in the head.

...Schnitt.jpg|thumb|right|250px|A [[cylinder head]] sliced in half shows two overhead camshafts—one above each of the two [[poppet valve|valves]].]] ...alve|valves]] or [[lifter]]s in a more direct manner, when compared with [[Overhead valve]]s (OHV) and [[pushrod]]s.

...e crankshaft in the V of a [[V engine]]. This contrasts with an [[overhead camshaft]] (OHC) design which places the camshafts within the cylinder head and driv * I-head, also known as overhead valve (OHV)

* [[Double overhead camshaft]]s driven by a double row timing chain * [[Double overhead cam]]

...steel tube-frame chassis with longitudinal and cross members. It had a [[double wishbone]] suspension with a transverse [[leaf spring]] in front and a [[to ...nbsp;L (1497 cc/91 in³) 60° [[V12]]. It had a [[single overhead camshaft]] on each bank of cylinders with a 60° angle between the two banks. The e

|Engine || 115bhp 1,975cc double overhead camshaft solid lifter four-cylinder engine with cast iron block and light alloy head ...in 1952 – the 1900 series featuring a thoroughly modern two liter double [[overhead cam]] powerplant. Although the [[drivetrain]] remained unchanged an updated

...|The 1903 Premier engine had a gear-driven [[SOHC#Single overhead camshaft|overhead cam]], roller cam followers, and crossflow hemi heads.]] ...eir 1950s hemi engine, the head was referred to internally{{Who?}} as the "double rocker" head, not as the hemi head.

...e crankshaft in the V of a [[V engine]]. This contrasts with an [[overhead camshaft]] (OHC) design which places the camshafts within the cylinder head and driv * I-head, also known as overhead valve (OHV)

...e crankshaft in the V of a [[V engine]]. This contrasts with an [[overhead camshaft]] (OHC) design which places the camshafts within the cylinder head and driv ...untries where cars are taxed based on [[engine displacement]]. Placing the camshaft inside the engine block instead of below or beside it, like early pushrods,

The 125 S used a steel tube-frame chassis and had a [[double wishbone]] suspension with transverse [[leaf spring]]s in front with a [[li ...s a [[dual overhead cam]]shaft design with 2 valves per cylinder and three double-choke [[Weber]] 30DCF [[carburettor]]s.

|Brakes || expanding double shoe [[Drum brake|drum]], front and rear, 123 mm ∅ x 25 mm width, cable-o ..., but with the sporting 15-liter gas tank shaped like that of the overhead camshaft 125 Sport. Complementing this tank was a sporty headlight, cigar-shaped mu

...) | head]] recognizable for the [[spinterogeno]] mounted between the two [[camshaft | camshafts]] and the lids of punterie inclined at 45 ° with glaring longi ...itres capacity, [[head]] alloy [[DOHC]], Distribution gear double overhead camshaft, 8 inclined valves, cylinders detachable ironcasted block.

| Engine || Four stroke, single cylinder, double over head camshaft * Valve Configuration: Inclined overhead

...i, a circuit lubricants carter dry, distribution chain and double overhead camshaft, 16 valves, with indirect injection pump mechanics.

...use an [[overhead camshaft]] to actuate the valves, and many use [[double overhead cam]]shafts (DOHC). However this is not always the case: [[Chevrolet]] rec ...M1|M1]]'s [[BMW M88|M88 engine]]). [[Triumph]] also introduced a [[single overhead cam]] 16-valve head on the ''[[Triumph Slant-4 engine|Slant-4]]'' in their

...ally, the 131 was offered with 1.3 L and 1.6 L single [[overhead camshaft]] engines. Revisions were made in 1978 and 1981, and all models were produ ...ad]], either pushrod with chain drive camshaft or double (DOHC) [[overhead camshaft]], driven by a single rubber/kevlar toothed [[timing belt]]. Fuel supply w

...of its features from 888 Racing. Liquid cooled [[Overhead camshaft|double overhead cam]] shaft with four valve desmodromic [[cylinder head]]. A horizontally p

...is needed to open only once during the four-stroke cycle. Therefore, the camshaft makes one rotation for every two rotations of the crankshaft. ...tion at any speed and load. The illustrations show an engine with [[Double overhead cam]]s, which has for many years, been a standard strategy for increasing t

...is needed to open only once during the four-stroke cycle. Therefore, the camshaft makes one rotation for every two rotations of the crankshaft. ...tion at any speed and load. The illustrations show an engine with [[Double overhead cam]]s, which has for many years, been a standard strategy for increasing t

...is needed to open only once during the four-stroke cycle. Therefore, the camshaft makes one rotation for every two rotations of the crankshaft. ...tion at any speed and load. The illustrations show an engine with [[Double overhead cam]]s, which has for many years, been a standard strategy for increasing t

...the single overhead camshaft version, and in 1931 with the double overhead camshaft version. ...ed as old-fashioned in comparison to [[Honda]]s of the era which sported [[overhead cam]] engines with [[electric starter]]s, in much the same way as the [[Bri

...camshaft|OHC]] ''[[Lancia V6 engine|Lancia V6]]''<br>2.8&nbsp;L [[Overhead camshaft|OHC]] ''[[Lancia V6 engine|Lancia V6]]'' ...[[independent suspension|independent]], with [[double wishbone suspension|double wishbones]], [[coil spring]]s, telescopic [[shock absorber]]s, and an [[ant

[[Image: Jonghi125ACT_Beltoise_CoueilleWP.jpg|thumb|right|250px|The 125 double Jonghi former ACT Michel and [[Jean-Pierre Beltoise|Beltoise]]]] ...e "125 cc Jonghi ACT" (an acronym for''Arbre en Tête à Cames'', with the [[camshaft]] in the head) that surprised many by its advances. Powered by a 4 stroke '

...quare, and Mille crankcases. In the 1980s these gave way to the belt drive camshaft engines that have continued to this day, in air and liquid cooled form. The ...ucati V-twin motorcycles#Bevel gear driven valves|bevel geared shaft drive camshaft engines]], he had gone from making complex engines to making simple ones.

...[[Chiti]], with a light-alloy block and cylinder heads, a single overhead camshaft per cylinder bank, as well as a quartet of [[Weber]] twin-choke [[carburett ...coil springs and tubular shock absorbers, independent rear suspension with double wishbones, leading radius arms, coil springs and tubular shock absorbers, a

...modified with a [[Overhead camshaft#Double overhead camshaft|twin overhead camshaft]] [[cylinder head]] based on an [[Alfa Romeo]] design. With this car, Bandi ...ical transformation: a new gear-driven [[Overhead camshaft#Double overhead camshaft|DOHC]] head was fitted and a single [[Weber]] [[carburettor]] replaced the

265hp 2,992cc dual overhead camshaft inline eight-cylinder engine ...x car. Designated the P2, it had an eight-cylinder engine of 1,987cc, dual overhead [[camshafts]] and a small Roots supercharger running at 1.33 times [[cranks

|Valve control:&nbsp; || colspan="6" align="center" |Double overhead camshaft

The front and rear suspension are independent, double wishbones, with coil springs, telescopic dampers, and anti-roll bars. The s ...thinsp;×&thinsp;{{convert|71|mm|in|1|abbr=on}}; there were four [[overhead camshaft]]s driving two valves per cylinder; [[Robert Bosch GmbH|Bosch]] [[Jetronic|

* '''Desmodue Double Spark''': Desmo two valve , air cooled, 40° included valve angle, (1000DS, * '''Desmotre Double Spark''': Desmo three valve, liquid cooled, 40° included valve angle, (ST3

...per cylinder. The 32-valve [[DOHC]] utilizes chain-driven, twin-overhead [[camshaft]]s that provide valve actuation in less than 0.15 seconds, with the intake The Maserati Coupé and Spyder both have a light alloy [[double wishbone suspension]]. The rear suspension is fitted with a toe-in regulato

...January 2002, the range-topping engine was the venerable [[double overhead camshaft]] 2.5 litre 24-valve [[Alfa Romeo V6 engine]] rated at 190 PS. ...gon Q4 offered [[four-wheel drive]] in [[left-hand drive]] markets) with a double high [[Control arm|wishbone]] front suspension and all independent [[Multi-

...IRE]] family of 4 cylinder water-cooled powerplants with a single overhead camshaft. The rear suspension was also upgraded, the rear leaf springs being replace ...four cylinders in-line with sixteen valves actuated by belt driven double overhead camshafts. The engine is [[undersquare]] with bore and stroke of 72 mm and