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Underneath the intake manifold bolted to the motor.
intake manifold is DIFFERENT for models 1985 and 1988
underneath the intake manifold next to the oil filter
It's under the intake manifold on the engine. You have to reach around and under the manifold to get it out, it's easier on trucks that don't have air condition installed. Use a 12 mm socket wrench for removal.
no, the bolt pattern on the small block Chevy intake manifold changed in '87 to the vortec head design, but if it doesnt have the centerbolt valve covers, then it will.
I can't remember exactly, but it's on the intake manifold side of things. It is be pretty obviously threaded into a water passage if you look around by where the thermostat is.
No. There were major engine changes between those years.
It goes to the temp gauge which is usually screwed in the head between the manifold on the drivers side, or into the thermost housing on the intake manifold.
It is located between the top of the intake manifold and the bottom of the tuned port plenum. You should be able to see it if you look between the runners. It is round and is in the middle of the intake.
it should be right off your intake manifold.
John Manifold died in 1985.
The 85 intake manifold won't work with the 90 heads, so you will need to purchase an aftermarket intake if you want to use a carburetor or use a 87 to 95 intake if you want to change over to TBI.