Quote Originally Posted by erik erikson
I started building these when a customer need his crank turned.
The 391 is built using a 3.75 stroke crank which is then "off-set ground" to 3.832 in stroke.
The combo uses the std. 5.7 rod in length.
Yes,this combo. will fit in a stock block but will require a small base circle cam.
How about a 350-60 over with a 400/3.750 crank . 389ci not bad ? COOL