MACE UNBREAKABLE ENGINE MOUNT TO SUIT HSV AVALANCHE VY VZ LS1 5.7L V8This stock height engine mount is made from 5mm laser cut steel plate and is precision folded for increased strength and accurate fitment. It is all jigged up when welded and finished in gloss black enamel paint. The centre cylindrical rubber bush is 50mm in diameter and joins the two halves of the mount with a 13mm thru bolt. The heavy duty bush is always under compression regardless of the direction of the applied load. It absorbs engine vibration