I have a set of main caps that are machined for a RJC block girdle. Caps 1 & 4 are stock caps modded for a girdle while caps 2 & 3 are billet caps machined for a girdle. Cap 4 does have the spacers welded to the cap and are properly machined. These caps will save a good amount of machine work when installing a girdle which will save you some money. $185 plus shipping for all 4 caps. Please add 3% or send as a gift if using paypal. Thanks