If you are asking about spark plug locations, the answer is no, they are not all odd on one side, depends on the engine you are talking about.
In the context of an inline engine, odd-numbered cylinders are typically on one side, while even-numbered cylinders are on the opposite side. For example, in a common four-cylinder engine, cylinders one and three are on one side (odd), and cylinders two and four are on the other side (even). In a V-type engine, the arrangement is similar, with odd and even cylinders located on respective sides. Thus, the odd-numbered cylinders are on one side, with the even-numbered cylinders on the other.
Bank 2 is the even numbered cylinders. Cylinder 1 is closest to serpentine belt and all cylinders on that side of engine are odd numbers. Bank 2 is all the even numbered cylinders and the O2 sensor is screwed into exhaust pipe somewhere between the even numbered cylinders and the cat converter.
On a Toyota T100, the number 4 cylinder is located on the driver's side of the engine, specifically in the second position from the front of the vehicle. The cylinders are typically numbered from the front of the engine to the back, with odd-numbered cylinders on the driver's side and even-numbered cylinders on the passenger side.
In a Nissan 350Z, cylinder 1 is located at the front of the engine on the driver's side. The engine in the 350Z is a V6 configuration, and the cylinders are numbered from the front of the engine to the back, with cylinder 1 being the closest to the radiator. This layout is typical for V6 engines, where the odd-numbered cylinders are on the driver's side and the even-numbered cylinders are on the passenger side.
On a Dodge 2.7 liter engine, the number two cylinder is located on the passenger side of the engine. It is the second cylinder from the front of the engine, following the firing order. The cylinders are numbered from the front to the back, with odd-numbered cylinders on the driver's side and even-numbered cylinders on the passenger side.
All GM V8 engines, except Cadillac, fire 1-8-4-3-6-5-7-2. Odd numbered cylinders are on the left, or driver's side bank. Even numbered cylinders are on the right, or passenger's side bank.
In the Cadillac SRX with a 6-cylinder engine, the number 3 cylinder is located on the driver's side of the engine. In most V6 engines, the cylinders are numbered from the front to the back, with the driver's side typically being designated as the odd-numbered cylinders (1, 3, 5) and the passenger side as the even-numbered cylinders (2, 4, 6).
On a Nissan 3.5 V6 engine, cylinder number 6 is located at the rear of the engine on the driver's side. This engine is configured in a V-shape with cylinders numbered from the front to the back, with odd-numbered cylinders on the driver's side and even-numbered cylinders on the passenger side. Therefore, cylinder 6 is the last cylinder on the passenger side.
In a 2003 Lincoln Town Car, the engine is a V8 configuration. The cylinders are numbered from the front of the engine to the back, with odd-numbered cylinders on the driver's side and even-numbered cylinders on the passenger side. Therefore, the number 5 cylinder is located on the driver's side toward the back, while the number 6 cylinder is on the passenger side, also toward the back.
On a 2000 Infiniti I30, the number 4 cylinder is located on the driver's side of the engine. The cylinders are numbered from the front of the engine to the back, with the odd-numbered cylinders (1, 3, 5) on the driver's side and the even-numbered cylinders (2, 4, 6) on the passenger side. Therefore, the number 4 cylinder is the second cylinder from the front on the passenger side.
On a 2003 5.3L Chevrolet Silverado, cylinder 6 is located on the driver's side of the engine, towards the rear. The cylinders are numbered from the front to the back, with the odd-numbered cylinders (1, 3, 5, 7) on the driver's side and the even-numbered cylinders (2, 4, 6, 8) on the passenger side. Therefore, cylinder 6 is the second cylinder from the back on the passenger side.
In a V6 Toyota Highlander, the number six cylinder is typically located at the rear of the engine on the driver's side. In a standard V6 engine configuration, cylinders are numbered from front to back, with odd-numbered cylinders on the driver's side and even-numbered cylinders on the passenger side. Therefore, cylinder six is positioned toward the back of the engine block.