Yes, they should bolt on just fine. Might get a little more low-speed torque with a decrease in top-end horsepower.
Yes, it will fit.
Yes they will, but 305 heads have a smaller combustion chamber so it may raise your compression ratio.
Possibly if Chevy made a 300.
305 heads of course, 350 heads will fit for sure and possibly 400. obviously no big block heads will fit. a 305 with 400 heads gets you a little over 352. 350 with 400 heads is a 383. add and divide
Yes, a 283, 305, 307, 327 etc will fit. You should be able to use small block motor mounts from 1966
No. The bore size is different between a 305 and 350. The 350 bore size is larger.
Yes, they should fit ok. 305 heads should bump up the compression a little.
305 327 350 400 283 with a little modifications
no I respectfully disagree. I am running 305 Chevy TBI heads on my 1971 Chevy 307 and all is very well.
Yes, they will fit on the block. The larger combustion chambers of the 307 heads will probably reduce the compression ratio by a fair amount, reducing power output.
Yes they will fit , But you will notice no change what soever. ( no more power )
Yes