Roller cam / pushrods?

A belated tip, as from personal experience I have learned. With the LA roller blocks if you are not running LA roller heads, but pre roller heads (stock or for example Edelbrock), you will probably encounter problems with pushrod clearance through the heads, due to changed pushrod geometry and the earlier heads having smaller .50 inch pushrod holes as opposed to larger .66 inch holes in the LA roller heads. Below is a link to an informative article on the topic. I am currently about to embark on the process of pulling the Eddy heads off my 1990 roller 360 to clearance the pushrod holes for that reason.

http://www.allpar.com/mopar/LA-V8-engine-head-swaps.html