To answer all the?'s, have them bore it .030 so the total bore will be 4.030". The stroker part comes in with the crank. the stock 350 has a stroke of 3.480" with a rod length of 5.7" and a 383 would have a 3.750" witha rod lenght of either 5.7" or 6". It is running about 450 to 475 horse, give or take. Didn't have it dynoed. I really don't like the idea of reving a fresh motor to 5000rpms of the bat. Either way Its pretty snotty. I suggest if you are gonna go for a 383 use a forged crank. They have cast ones but when you get into the higher ponies a harder more durable crank is the way to go. Might as well spend the extra cash now instead of when the cast crank fries and a rod flies through the side of the block. Budget builds are great but there is no point in doing the job twice. What kind of heads are you gonna run? (chamber and valves)
