Block/Main Stud Girdle
:iamwithstupid: that's funny, when I 1st read the title, I was thinking Valvetrain type "Stud Girdle" too, like used on Chevy's or "aftermarket" Edelbrock or "Magnum" Aluminum SB Chrysler Wedge 318-360ci or V-10 Viper, individually rocker studded type valve train/style heads... BLOCK/MAIN STUD/CAP GIRDLES... I say run the Block/Main Stud/Cap Girdle... I've used Chattsworth & 440source, both were good, both came with all the necessary hardware... IMHO, they are cheap insurance, most Chrysler engines only have 2 bolt mains, they help to strengthen the bottom end, especially if you going to have a stroker crankshaft, it helps strengthen & ties everything together nicely, block oil pan rails/skirts to the main studs/caps, even using the stock main caps... like someone already said "some grinding or machining, is sometimes necessary for clearances in different places", depending on who's BLOCK/MAIN STUD/CAP GIRDLE you use, depending what/who's size/type/style crankshaft, what/who's oil pick up tube/oil pan, etc....