no
Unbolt from the block & take the nuts off studs to exhaust flange. You will need a new gasket for the block & a new one for the flange.
it flows exhaust to the EGR value
it does not come with a block heater unless installed by a mechanic. if so, it will be in the engine block under the exhaust manifold. can see it from under the van
Sounds like an exhaust leak.
check for exhaust leaks around the manifold inlets and outlets.
To change the exhaust manifold gasket on a 2002 Chevy Cavalier, first disconnect the battery and remove any components obstructing access to the manifold, such as the air intake and exhaust pipes. Then, unbolt the exhaust manifold from the engine block, carefully removing the old gasket. Clean the mating surfaces thoroughly before placing the new gasket and reassembling the manifold. Finally, torque the bolts to the manufacturer's specifications and reconnect any components you removed.
Chevy does not cast the block size onto the block. once you see a big block compared small block you will know the difference. at a glance with nothing to compare it to id say look at the head. small block heads have one exhaust port close the ends and two exhaust ports real close together in the middle. the big blocks exhaust ports are evenly spaced and not close together at all. If it is a 350 or smaller it is a small block. If it is a 396 or larger it is a big block except for the 400 which was made in both small block and big block configuration.
A 350 small block Chevy engine typically weighs around 500-575 pounds, including components like the intake manifold and exhaust manifolds.
When the center exhaust valves are side by side (siamese), it's a small block (EIIEEIIE). Big blocks are symmetrical (EIEIEIEI).
sbc stands for small block Chevy and headers are high performance exhaustAnswerSMALL BLOCK CHEVY headders (exhaust)283 305 327 350 ect Chevy engines
The knock sensor is on the left side of the block below the exhaust manifold.
It has 8 intakes and 8 exhaust if it's a V-8 engine.