Big block
Yes.
The 390 Ford motor is an FE block and was made as a Big Block only. The small block or Windsor motor could be bored and stroked to have 390+ cubic inches. To build a stroker motor you have to do extensive machine work and parts matching. That process usually involves large amounts of money.
No the 390 is a big block the 302 is a small block.
Not without an adapter kit for the bellhousing. The 390 is a big block engine, the 302 is a small block.
No. The 302 is a small block only. However, the 351, came as a Windsor, or small block, and a Cleveland, which was a big block...
There is no such thing as a "351 big block". ALL Ford 351's are considered small blocks, tho the wacked terminology of "351 big block" is mistakenly and continually repeated by the un-knowing and by many who should know better. Ford Motor Company considers ALL 351's small blocks; 351W, 351C, and 351M. Ford made a 352 big block (FE block like 360, 390, 406, 427, & 428). If that is what you meant, no the transmission bolt patterns are not the same. The 351W and 351C both have the same trans bolt pattern but the 351M has a bolt pattern like the 429 and 460.
Bolt spacing where the bellhousing mates to the back of the engine.
The biggest manufactured ford big block is the 460. But you are able to punch it out to a 614 which would make it the largest ford big block.
Firing order on a Big Block Ford is 1-5-4-2-6-3-7-8 Firing order on a Small Block Ford is 1-3-7-2-6-5-4-8
There are adapters for everything.
According to the info I have these cars were available with four different engines. The 351 Windsor/Cleveland the 400 Cleveland (all small block) and the 460 engine (big block). Hope this helps.
The point gap for the big block (390/428) Ford in 1969 would be .017". The 460 is also ,017 according to an old Chilton book for a 1973 Ford Thunderbird 460 cubic inch.