Bought a 2008 5.3 with 300k kms. Had a P0304 and some o2 codes. Pulled valve covers off and #4 exhaudt lifter is collapsed. Took head off before I found your site. Lifter is in 2 pieces. Roller and cam both look good. Screen on vlom is clean. Wondering if I can replace the afm rollers with oem afm rollers on this side, order your oil sensor block and do your vlom mod? And be ok for a good while? Will also diasble afm with an hp tune? Thanks
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Was the lifter roller damaged at all? You can do the VLOM mod after replacing lifters with stock AFM lifters. You will need a tune to do it though. I recommend lt1swap.com for the tune.