No it will not, The intakes are different.
Yes
No , the 351 intake manifold is wider than the 302 intake manifold
no
Yes, you can upgrade to a bigger throttle body for your 1991 Civic hatchback with a D15B2 engine, but compatibility will depend on the specific throttle body you choose. Changing the entire intake manifold is also possible, but it can be more complex, as it may require additional modifications to fit and align properly. Ensure that any new components match your engine's specifications and consider the tuning required to optimize performance. Overall, both upgrades can enhance power, but they may require some mechanical skill and knowledge.
no
yes it will, but the manifold your gonna put the tsi throttle body on must be a turbo manifold as well, well actually not really, it will fit no matter what, its just the non turbo manifold has more vacuum lines runnin to the throttle body, but it should work, never had a non turbo talon but i am very familiar with them, i have a 92 tsi awd talon and a 98 tsi.
yes but you will need new mounts. fabricate a new passenger side mount new hood intake manifold will not clear stock hood.. no drive by wire system also, you will need a k20a throttle body and computer other things
yes if they are both throttle body engines
No it will not.
NO, Not even close.
the intake gaskets are prone to leaking. Get a hanes book and good luck Actualy, the intake manifold has 2 different versions. The first version is prone to leaks. The second is much better. Also the replacement throttle-body gaskets(GM# 12580919, $40.00) fit BOTH versions and have been redesigned to help with this. The coolant passageway is located at the very bottom of the throttle-body. Your engine sometimes idles rough because it is also leaking into the intake manifold. I won't go into details here, but it should take you only an hour the first time using common hand tools. I'll warn you that the throttle-body is fragile and you do not need to remove any sensors(doing so will sometimes strip the threads or break the screws off!).
Yes, a GM 346250 intake manifold can be bolted onto a 14093638 block, as both are part of the small-block Chevrolet engine family. However, it's important to ensure compatibility with the specific engine configuration, such as the intended use and any modifications made. Additionally, you may need to consider the intake manifold's design and the associated components, like the carburetor or throttle body, to ensure proper fit and performance.