GDI Stock LT4 Replacement| (PN: 12668397 or Equivalent)

Brand New Stock LT4 Replacements Supersedes: 12650284, 12672374, 12684130, 12683517 Applications: High horsepower GM Gen V V8 and V6 direct injection engines including LT4, LT1, L86, L83 and LV3 E85 conversions of GM Gen V V8 and V6 engines  2014-2017 C7 Corvette LT1  2015-2017 C7 Z06 Corvette LT4  2016-2017 Camaro SS LT1  2016-2017 CTS-V LT4  2014-2017 Silverado and Sierra with 4.3L LV3, 5.3L L83 and 6.2L L86 engines  2015-2017 Suburban, Tahoe, Yukon and Escalade with 5.3L L83 and 6.2L L86 engines  there is no functional difference between "low", "nominal", and "high" versions; you just need all eight to match.