Has anybody replaced there vvt / dod 6.2 with a GM performance 6.2 /la3 430hp , I have a 2011 Yukon Denali and the #4 lifter let go and lock up the motor , I would like to replace it with the GM performance crate motor but the service guy at the deal told me I would need a controller added to it and that I would be better off to replace it with a stock 6.2 vvt/dod remanufactured 6.2 plug and go , opinions and advice on this subject is very much appreciated I was looking at the 6.2 long block summit racing has for a decent price and I don’t mind getting a tune for it but a new controller hmmm I’m thinking he’s trying to up sale me , thanks for any advice