HI, I'm building a 392 hemi using a 1958 block, putting in a 5/8 stroker crank. (4.525") This moter will have steel rods and high compression, and I want to build it to hold up to drag strip thrashing and street cruising. Bottom end strength is a big concern. I plan to convert it to 4 bolt mains. I have talked to a handful of reputable machine shops about using aluminum main caps, and I get a different opinion from everyone. Some say do it, some say never do it, others don't have much opinion.
So what are the pros and cons of the aluminum vs steel caps? Besides weight?

Thanks, Joel