Upgrade Guides for LSx V8October 3, 2019October 4, 20191 CommentLSx On All Cylinders compiled all their LSx engine spec and upgrade guides into a single list. Now you can easily find a guide to help upgrade your Gen 3 or Gen 4 LSx V8 engines. Related 1 thought on “Upgrade Guides for LSx V8” JimmyinTEXAS October 4, 2019 at 4:51 pm Sweeeeeet, thanks for posting this. Reply Leave a Reply to JimmyinTEXAS Cancel replyYour email address will not be published. Required fields are marked *Comment Name * Email * Website Notify me of follow-up comments by email. Δ This site uses Akismet to reduce spam. Learn how your comment data is processed.