best 351W stroker kits

Think you need to have a more specific question. There are a lot of factors that go into how a motor performs. What are your goals, how will the car be used, what kind of budget do you have? A stock stroke motor with good heads will almost always out perform and stroker with stock heads. Have fun

i'm looking for something that is very strong on the low-end and can rev. i'll be wanting to run 3.73's,or 4.11's in the rear. i'd like to keep it around 3,000 or 4,000 for the entire kit. which is better for my needs, a 377, a 393, or a 408? where can i find these kits for a decent price? Thanx.

That's still not enough if you want good input to your question.

It would help if you filled out your bio and told us about the car you are working on.

Usually if you want to build an engine that will "rev", you would sacrifice some low end. You need to decide what the car will be used for.