Are you using a original small block dip stick tube or a chrome Mopar Performance dip stick tube ?
An original tube works best if you can find one. Plus it has the "shorter" dip stick, which I like.
If you are using the Mopar Performance DS, they are a little wider. I reamed the hole in the block slightly, with a drill bit. I had the motor on a stand though. Might be tough if the motor is in the car.Dont over due it, were talking milimeters.
My bet is you are using the MP dip-stick.
Best advice,try and find an original, will fit like a glove.
Also put a touch of RTV on the tube before pushing it in. Seals it nice.
The wrench around it works well to, just tapping it in.
