in my 82 f 150 i have a 302 with a four speed manual top loader type transmission. I plan on picking up a 351 and im going to have it bored 60 over then rebuild it with new cam, pistions, etc. My quesiton is will everything else hold up or with the new motor will i tear apart everything from the trans to rearend. An off the subject question is, is that if anyone has a good box for the 80-86 body style and would sell and lives in Iowa also let me know. Thanks!

 

The 351 should just drop directly in place of the 302. You shouldn't have to worry about the 351 tearing up anything in the truck, unless its going to be abused. Then, you have to worry about it.

Also, don't bore the 351 .060 over unless it needs it, this is just going to make the block wear faster, and after this, it will more than likely need to be replaced at the next rebuild instead of just bored over. Also make sure when you go to pick up your 351 you get a Windsor, or Cleaveland. As a 351M will not bolt up the the 302's bellhousing.

Also another concern might be exhaust, but thats slim to little chance.
Good luck with your project.

 

unless your tranny is a t-18/19 or np435, then the manual tranny might, and I mean might, be the first thing to go second to a u-joint.it is worth the swap even if the 351W was left stock.

 

Where do i need to look on the trans to find out what it is.

 

start with the vin plate.

 

make sure when u pick up the 351 u also grab the ps bracket since there slighly diffrent not sure about the alt. bracket since I modify my to a gm 2 wire (cs144 style).
headers from 302 to 351 are diffrent in lenght, but if you have manifolds u just have to modify the y pipe.

 

If your tranny has a granny gear for first gear, you're set. If you have the 3 speed with overdrive, it may be too weak for a 351. Also, as deperado said, don't go .060 over unless you have to, in addition to what he said, the thinner cylinder walls will overheat the coolant easier if you work the engine hard.