No, not even close. Pontiac 350 intakes will interchange with 1965-1979 Pontiac 389,400,421,428,455 intakes. Most all aftermarket Pontiac V8 intakes are designed for the 1965 up bolt pattern. 350 Chevy is part of the small block Chevy engine family, and virtually nothing interchanges with a Pontiac V8.
On a small block Chevy the distributor goes through a hole in the intake manifold. On a Pontiac the distributor goes behind the intake manifold.
Chevy didn't make an intake manifold for that 94 that you can mount a carburetor to. You will need to purchase one from an aftermarket company.
Yes, They are the same. GM uses the same parts for Pontiac and Chevy, although the carb may be different therefore the carb from the Pontiac will not always work with a Chevy.
what about it?
Yes they do at the intake manifold gaskets.
There is no difference,,,
Remove the intake manifold retaining bolts from your 1996 Chevy Astro Van. Remove the manifold gasket and clean the surface. Reverse the process to install the new intake manifold gasket.
Many ways. Pontiac 400 has a cast aluminum timing cover, that mounts the water pump directly on it, Chevy 400 has a stamped steel timing cover, water pump mounts to the block. Pontic 400 has fuel pump on the drivers side, Chevy is on passenger side. Pontiac has a separate valley cover below the intake manifold, Chevy intake IS the valley cover. Pontiac distributor does not go through the intake manifold, Chevy does. Pontiac has 10 head bolts per side, Chevy has 17. Pontiac has long exhaust ports that bend 90 degrees from the side of the cylinder head, Chevy exhaust ports end at the face of the cylinder head. Pontiac spark plugs are above the exhaust manifolds, Chevy is below. Pontiac 400 is physically larger than the small block Chevy 400 also.
Assuming this is a 4.3L engine, the upper intake manifold gasket would be between the upper intake manifold and the lower intake manifold.
intake manifold is DIFFERENT for models 1985 and 1988