Description
OEM GM heavy duty timing chain part # 12646386 & 12646387 this is 100% brand new and will work with many LS applications, this is a common upgrade & well worth it . These are removed from a factory LS3 crate engines with 0 miles . I package my parts with care & ship fast any questions PLEASE ask, take a look at my other LSX parts for sale. This will NOT include original packaging as they are removed from a LS3 crate engine with 0 miles! These are 100% brand new. Thank you & good luck with your build!