i have a 350 in my 68 coupe right now. i was wondering what the advantages and disadvantages were to stroking the engine to a 383 and if it would be good for my application. it is almost always street driven but will see some track use. i also have some general questions (yes i am still learning about cars. im in all the auto classes i have room for in my high school schedule). a 350 becomes a 383 when it is only stroked right? can it also be bored? what does it become after that? what is involved in stroking an engine? i can do a lot to cars once i am told how but i need to be told how at this point. ok, thats about it. sorry if there are too many questions in one post.

It takes a .030" over bore and a 400 crank to make a 383 from a 350. The advantages are more cubic inches and with most of the extra cubes coming from the stroke the big advantage is more torque than a 350. When you put a 400 crank on a 350 block you will have to clearence (grind) areas where the moving parts will want to make contact with the block or other moving parts. This typically requires removing material from the rods and the block.

If you didn't over bore the 350 and stroked it you would have a 377 I believe.

Not to be confused with 400 block and 350 crank...377cu smile.gif

Ethan '67 327

350 with 400 crank is 377
350+0.30 with 400 crank is 383
350+0.40 with 400 crank is 385
350+0.60 with 400 crank is 388
400 with 350 crank is 377