No you can not a sohc is not as wide as a dohc and
you can not inter change a efi with the carb
Unlike most vehicles, This PVC valve isn't located in the valve cover. You can find the PVC valve on this model directly behind the point where the Upper and Lower intake meet. The valve will be plugged directly into the lower intake manifold. It took me a while to find the valve, I hope this information will help someone out.
In a word, no. The Northstar engine is a DOHC 4 valve-per-cylinder engine, while the LSx is a traditional pushrod engine. The ports of the northstar are wider to accommodate 2 intake valves, the ports on an LS are narrower and tall feeding a single, large intake valve. The heads on a Northstar are wider and therefore the valley is narrower. The starter on a Northstar is located in the valley. All of these attributes dictate the design of the Northstar intake manifold which, looking similar on top, is very different than an LS manifold on the bottom.
by the lower intake manifold while you are doing this you should replace the intake manifold gasket anyway because it will leak sooner or later.
test the egr valve push plunger in and out . It should not be too tough to do, if it is it may be stuck or plugged. should be on the right side of the intake manifold.
it took me quite a while to figure this out myself. it's a current problem on my car. It is on the drivers side of the upper intake manifold. Below the EGR valve.
It is impossible to remove the valve without taking off the intake manifold that it is bolted to. Remove all of the various hoses and electrical wires that are connected to the intake manifold. Remove the accelerator and cruise control cables from the throttle body. Remove the distributor cap and allow yourself access to the throttle body and detach that. Next, take the two spark plug wires closest to the firewall off of those spark plugs but leave all wires connected to the distributor cap. Unbolt the manifold with a star bolt (don't remember the size). Turn the manifold upside down and you'll see the valve bolted onto the underside slightly obscured by a few pipes which are easy to disassemble. While everything is off, clean the throttle body and the air intake manifold with carburetor cleaner. Put new valve on and put everything back in reverse order. Remember to put a new manifold gasket and I don't remember the torque values for the manifold bolts. Take your time, it's really not too bad.
probably the lifters not getting sufficient oil
The head has to be removed on the 1993 Roadmaster to get to the gasket. You will need to remove the intake, exhaust manifold, and valve cover then unbolt the head to remove it. Check the head for warpage while it is removed.
The thermometer electrode is located on the intake manifold. I have found if your "idiot light" comes on while driving, the housing of the filiment might be cracked and giving a false indication. If you are looking for the thermostat, it is on the intake manifold where the the upper radiator hose meets the intake manifold. Hope this helps.
need to replace the intake manifold gasket
It maybe a leak in the intake manifold gasket.
I'll assume Lower Intake Gasket, since they tend to cause vacuum leaks. Get a manual from Autozone and expect about 4 hrs labor, you need to take off the upper intake manifold just to replace the Lower Intake Gasket. Probably should change/clean the PCV valve while ur in there. Good luck, man.