I recently purchased an LS376 "Special" 525hp for a customer's GTM. It requires that the boss for the oil pressure sender be "removed" so that you can flip the intake 180 degrees and have clearance for the bottom of the intake manifold. I would like to offer my services if you have a similar valley cover that you need this done to. Price to cut the boss down and plug the hole would be $40 plus shipping. You can email me thru my website if you are interested in having this service performed on your valley cover.

There is still some minor "trimming" that will need to be done to the bottom of your intake manifold to clear part of the boss, one valley-cover bolt-head, and the vent port at the front of the valley cover. Thanks!