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The intake valves are bigger.
a Chevy 202 head, is a fuely head with a 202 intake valve
It is on the back of the intake manifold.
The intake valve is always bigger.
The ERG valve on a 1999 Chevy Express van is near the carburetor. It is bolted on the intake manifold.
intake valves are the larger valves or if you count from from either end its number 2,3,6,&7 valve
On a 1996 Chevy Camaro, the PCV valve is located on the right side of the valve cover. There is a hose that runs from the PCV valve and connects to the back of the intake manifold.
On the intake manifold on the drivers side.
The exhaust lifters will line up with the exhaust manifolds,Remove the valve cover if your working on a V8 and the valve that lines up with the exhaust port will be the exhaust valve,If it is a Chevy V8 they will be from standing in front of the car exhaust,intake,intake,exhaust,exhaust,intake,intake,exhaust.
On a 1986 Chevy 305 engine, the Positive Crankcase Ventilation (PCV) valve is typically located on the valve cover. It is usually found on the driver's side valve cover, fitting into a grommet. The valve connects to the intake manifold via a hose, allowing for the circulation of gases from the crankcase to the intake for combustion.
It is in the middle between the intake and the water pump.
The intake manifold is bolted on the center of the engine between the 2 Valve covers.