All the dimensions are the same, but it should be re-balanced for the lighter pistons.
yes but the engine will have to be rebalanced
a Chevy 350 crank is a Chevy 305 crank. they have the same stroke, 3.48 inches, and are interchangable. swapping between the two cranks does not change the engines displacement
it should de-stroke it to something around a 327. it will fit but be sure to check for crank to piston and piston to head cylinder top clearance to ensure you don't run into engine detonation. ummm no 305 and 350 have same stroke a 400 crank would make it a 334... same main and rod journals also stroke is 3.48
If you are asking if you can substitute a 350 for a 305, the answer is generally yes.
yes
yes it will
yes
Yes
NO they are to big.
all external bolt on parts will work. heads, intake, dist, cam, pan, timing chain, oil pump etc. should all work as well. most internal parts will not work though. such as pistons crank rods and block. The 305 crank will fit the 350, but will need to be balanced. i would not use the 305 heads due to small compression chambers.
engine will fit, but 305 tbi will be too lean for 350 It'll burn up
350 and 305 cranks have the same stroke (3.48") so putting a 350 crank into a 305 won't change the ci at all. A 400 crank has a 3.75" stroke, so using that crank in a 305 would make a 329 ci engine. However, in either case you'd have to have the crank re-balanced to work with the lighter 305 pistons. In the case of the 400, the crank journals are larger (2.65") so they'd have to be machined down to 2.45" to fit in a 305 (or 350). A machine shop can do that work (turning down the journals and balancing the crank) but you can also buy reasonably priced aftermarket 3.75" stroke cranks from companies like Scat and Eagle that are made to fit the 305 (actually the 350, but there's no difference in terms of aftermarket cranks) right out of the box. But even in those cases you'd still need to have the crank balanced for your pistons and rotating assembly. I have a 336 ci engine that started life as a 305, but now has a 3.75" stroke crank (same as a 400) and 3.776" pistons. It's not a cheap way to get cubic inches, but if you already have a 305 block and are insistent on making the most of it for whatever reason, it can be made into a nice engine. I did A LOT of work on my heads (aluminum Trick Flows) to maximize them to work with the 3.776" bore. The 305 has a small bore - it can work for performance, but you have to know your stuff and do your research.