Re: whats the difference clev and wind.
The easiest way is to look at the water outlet.(Thermostate Housing) The windsor is bolted to the intake, & the Cleveland is bolted to the Block.
Yes, You can replace a 351c or 351W with a 302. & Will bolt up to the transmission. Make sure you measure the Converter bolts, There are two sizes on the 302.
Of coarse you will have to change the Exaust system.
1990 Thunderbird Factory stock Circle Track Car #12
351W C4 3.90 open gear.
See my car at:www.tessier-racing.com