I bought a Chevy engine a few years ago and was told it was a 383 stroker. I'm finally getting around to working on it. I took the oil pan off so I can run the numbers off the crank to confirm it was a 400 crank. I ran the numbers and they don't match anything I find. How else can I tell if it's really a 400 crank or a regular 350 crank? I can't tell if there is any clearences for the rod bolts so I'm not sure what it is

 

depending on the crank it may not be clearanced. check the stroke.

 

Are the heads off yet? A 383 stroker has a .030" overbore (4.030"), and a 3.75" stroke. Measure the travel of a piston from top dead center to bottom dead center. If you come up with 3.75", you have a stroker.

 

Ok thanks. I'll check that