Originally Posted by efi-diy
You can get the dimensions of the 4200 here:

4200 size

for sure they are 150+ # lighter than a stovebolt.

I don't have a stovebolt around to measure up.
I have made those measurements myself out of curiosity, the 216/235/261 and the 4200 Atlas are almost exact on length and width, with the 4200 only being about an inch shorter from the bottom of the block to the top of the cam cover.


Bill Burmeister